unknown79REAPPROVEDClimate data at Ward Hunt Island ObservatoryADAPT; ArcticNet; IPY-MERGE; OtherAir temperature, humidity, net and photosynthetically active radiation (PAR; 400-700 nm) as well as soil temperatures, snowpack, wind speed and direction are recorded from a 10-m automatic climate station on the northern side of Ward Hunt Island, near the Parks Canada camp site and at the edge of Quttinirpaaq Lagoon. Air temperature is measured at 10 m height; soil temperature is measured just under the surface (0 cm), 20, 40, 60, 90 and 120 cm depth. The depth of snowpack adjacent to the climate station is measured with a Sonic SR50 snow depth sensor. The HMP45C212 temperature and humidity probe (Campbell Scientific Canada Corp.) was housed in a RM Young 12-Plate Gill radiation shield located at 10 m height, read every 60 s, and the maximum and minimum values were recorded every hour with a Campbell CR10X data logger. For the soil profile, each thermistor (YSI 44033, attached to the data logger via a Belden 88761 cable; precision of 0.1 °C) was inserted into a 5 mm diameter, 500 mm deep horizontal hole produced at right angles to the vertical access hole that was then refilled and compacted with soil. Measurements were taken every minute by a Campbell Scientific CR10X data logger and output as hourly averages, beginning in August 2005.As part of the long term monitoring and research program NEIGE, a climate station was installed at Ward Hunt Island Observatory in August 2005.In progressAs needed2007-06-262020-01-21Ward Hunt Island, Nunavut - OARPMCEN 2018. Climate station data from Northern Ellesmere Island in Nunavut, Canada, v. 1.6 (2002-2018). Nordicana D1, doi: 10.5885/44985SL-8F203FD3ACCD4138. Related publication: Vincent, W.F., Fortier, D., Lévesque, E., Boulanger-Lapointe, N., Tremblay, B., Sarrazin, D., Antoniades, D., and Mueller, D.R. 2011. Extreme ecosystems and geosystems in the Canadian High Arctic: Ward Hunt Island and vicinity. Ecoscience 18: 236-261.Data from this site and other sites on the northern coast of Ellesmere Island are updated each year and available online at http://dx.doi.org/10.5885/44985SL-8F203FD3ACCD4138PublicNot Applicable2005-Aug-12018-Jul-2083.183.1-74.2-74.2Centre d'Études Nordiques (CEN) & Dépt de biologieWarwick Vincentwarwick.vincent@bio.ulaval.ca418-656-3340Université LavalQCQuébec CityG1V 0A6CanadaGeographic locations:Arctic; Geographic locations:Nunavut; Geographic locations:Ward Hunt Island; Natural sciences:Air temperature; Natural sciences:Climate; Natural sciences:Lake; Natural sciences:Soil temperature; Natural sciences:Solar radiation; Natural sciences:WindsSarrazin, Denis:Originator; Vincent, Warwick:Principal Investigator16-74.2,83.180REAPPROVEDArcticNet 0501a - Northern Baffin Bay CTD dataArcticNetThe CTD data was obtained during the 2005 ArcticNet scientific cruise #0501. The data were collected from August 14 to 23, 2005, aboard the CCGS Amundsen. There were 54 casts, associated to 36 oceanographic stations, in the Northern Baffin Bay. The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), pH (Sea-Bird SBE-18-I), fluorescence (Seapoint chlorophyll fluorometer), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.The physical data are one of the tools used to characterize the water masses and, to some extent, the water circulation in the Northern Baffin Bay.CompleteAs needed2007-06-272015-10-21Northern Baffin Bay, NunavutSimard, A; Rail, M-E and Gratton, Y (2010): Distribution of temperature and salinity in the Canadian Arctic Archipelago during the 2005 ArcticNet sampling expedition (from August 5th to October 27th 2005). Report No R1126, INRS-ETE, Québec (Qc): vi + 79 p.pdc@arcticnet.ulaval.caPublicNot Applicable2005-Aug-142005-Aug-237279-80-70ArcticNetAmundsen Science Core Data Collection DATA Coordinator : Tahiana Ratsimbazafypdc@arcticnet.ulaval.ca418-656-2411418-656-2334Pavillon Vachon, Local 4081QuébecQuébecG1V 0A6CanadaGeographic locations:North Water Polynya; Natural sciences:CTD profiles; Natural sciences:Fluorescence; Natural sciences:Nitrates; Natural sciences:Oxygen; Natural sciences:Photosynthetically available radiation (PAR); Natural sciences:Salinity; Natural sciences:Temperature; Natural sciences:TransmittanceGratton Yves:Originator; Gratton Yves:Principal Investigator; Lago Véronique:Collaborator; Rail Marie-Emmanuelle:Collaborator243-80,72 -79,72 -78,72 -77,72 -76,72 -75,72 -74,72 -73,72 -72,72 -71,72 -70,72 -70,79 -71,79 -72,79 -73,79 -74,79 -75,79 -76,79 -77,79 -78,79 -79,79 -80,79 -80,72103REAPPROVEDDevon Island Ice Cap: Core A Chemical StratigraphyArcticNetDevon Island Ice Cap core A was recovered from 75.3448°N and 83.7015°W at 1415 m elevation on 7 May 2005. After high resolution physical stratigraphy (accompanying file), the core was sectioned with a band saw into anion analysis. A Dionex ICS-2500 ion chromatograph was used to measure the concentrations of methanesulphonic acid (CH3SO3H), sulphate (SO42-), nitrate (NO3-) and chloride (Cl-) in each sample. The ice core has been dated with the Nye time-scale (Nye, 1963), which correctly identifies the 1963 137Cs "bomb" layer, resulting from fallout from atmospheric thermonuclear weapons testing, which was measured independently in the borehole (accompanying file).The purpose was to reconstruct the net accumulation and anion deposition histories of the high elevation region of the Devon Island Ice Cap, using annual layer counting of chemical strata revealed by high resolution anion chromatography.CompleteAs needed2007-07-232014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1931-Jun-12003-Jun-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstruction; Natural sciences:Water chemistryJames Davis:Collaborator; Lisa Hryciw:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6104REAPPROVEDDevon Island Ice Cap: core B chemical stratigraphyArcticNetDevon Island Ice Cap core B was recovered from 75.3427°N and 83.3525°W at 1630 m elevation on 10 May 2005. After high resolution physical stratigraphy (accompanying file), the core was sectioned with a band saw into anion analysis. A Dionex ICS-2500 ion chromatograph was used to measure the concentrations of methanesulphonic acid (CH3SO3H), sulphate (SO42-), nitrate (NO3-) and chloride (Cl-) in each sample. The ice core has been dated with the Nye time-scale (Nye, 1963), which correctly identifies the 1963 137Cs "bomb" layer, resulting from fallout from atmospheric thermonuclear weapons testing, which was measured independently in the borehole (accompanying file).The purpose is to reconstruct the net accumulation and anion deposition histories of the high elevation region of the Devon Island Ice Cap, using annual layer counting of chemical strata revealed by high resolution anion chromatography.CompleteAs needed2007-07-232014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1957-Jun-12003-Jun-174.675.8-84.5-79.5University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstruction; Natural sciences:Water chemistryDave Burgess:Collaborator; James Davis:Collaborator; Lisa Hryciw:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.5,75.8 -80.5,75.8 -81.5,75.8 -82.5,75.8 -83.5,75.8 -84.5,75.8 -84.5,74.6105REAPPROVEDDevon Island Ice Cap: core C chemical stratigraphyArcticNetDevon Island Ice Cap core C was recovered from 75.3399°N and 82.6763°W at 1825 m elevation on 10 May 2004. After high resolution physical stratigraphy (accompanying file), the core was sectioned with a band saw into anion analysis. A Dionex ICS-2500 ion chromatograph was used to measure the concentrations of methanesulphonic acid (CH3SO3H), sulphate (SO42-), nitrate (NO3-) and chloride (Cl-) in each sample. delta18O ratios were measured with a GV Isoprime continuous flow mass spectrometer with EuroEA combustion chamber for the top half of the core. The ice core has been dated with the Nye time-scale (Nye, 1963), which correctly identifies the 1963 137Cs "bomb" layer, resulting from fallout from atmospheric thermonuclear weapons testing, which was measured independently in the borehole (accompanying file).The purpose is to reconstruct the net accumulation and anion deposition histories of the high elevation region of the Devon Island Ice Cap, using annual layer counting of chemical strata revealed by high resolution anion chromatography.CompleteAs needed2007-07-232014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1949-Jun-12002-Jun-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstruction; Natural sciences:Water chemistryDave Burgess:Collaborator; Lisa Hryciw:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; Scott Williamson:Collaborator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6106REAPPROVEDDevon Island Ice Cap: core D chemical stratigraphyArcticNetDevon Island Ice Cap core D was recovered from 75.2390°N and 82.0310°W at 1525 m elevation on 13 May 2005. After high resolution physical stratigraphy (accompanying file), the core was sectioned with a band saw into anion analysis. A Dionex ICS-2500 ion chromatograph was used to measure the concentrations of methanesulphonic acid (CH3SO3H), sulphate (SO42-), nitrate (NO3-) and chloride (Cl-) in each sample. The ice core has been dated with the Nye time-scale (Nye, 1963), which correctly identifies the 1963 137Cs "bomb" layer, resulting from fallout from atmospheric thermonuclear weapons testing, which was measured independently in the borehole (accompanying file).The purpose is to reconstruct the net accumulation and anion deposition histories of the high elevation region of the Devon Island Ice Cap, using annual layer counting of chemical strata revealed by high resolution anion chromatography.CompleteAs needed2007-07-232014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1921-Jun-12003-Jun-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstruction; Natural sciences:Water chemistryJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6107REAPPROVEDDevon Island Ice Cap: core E chemical stratigraphyArcticNetDevon Island Ice Cap core E was recovered from 75.4494°N and 82.5305°W at 1525 m elevation on 17 May 2005. After high resolution physical stratigraphy (accompanying file), the core was sectioned with a band saw into anion analysis. A Dionex ICS-2500 ion chromatograph was used to measure the concentrations of methanesulphonic acid (CH3SO3H), sulphate (SO42-), nitrate (NO3-) and chloride (Cl-) in each sample. The ice core has been dated with the Nye time-scale (Nye, 1963), which correctly identifies the 1963 137Cs "bomb" layer, resulting from fallout from atmospheric thermonuclear weapons testing, which was measured independently in the borehole (accompanying file).The purpose is to reconstruct the net accumulation and anion deposition histories of the high elevation region of the Devon Island Ice Cap, using annual layer counting of chemical strata revealed by high resolution anion chromatography.CompleteAs needed2007-07-232014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1945-Jun-12003-Jun-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstruction; Natural sciences:Water chemistryJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6108REAPPROVED2007 Dissolved Organic Matter Samples, West Lake, Cape BountyArcticNet; IPY-Climate Change and Permafrost, Cape BountySamplers are proprietary passive resin design and were deployed with other limnological instruments at 1 m above the bottom of West Lake at the proximal location of a proximal-distal transect (in relation to stream inflow). Sample handling was in accordance with preservation and to avoid contamination. Dissolved organic matter was extracted in the laboratory.Sampling of dissolved organic matter (DOM) from the West Lake at Cape Bounty in conjunction with comprehensive limnological and hydrological monitoring. Passive samplers were designed by A. Simpson and deployed for the season.In progressAs needed2007-07-242013-03-28Cape Bounty, Melville Island, NunavutLamoureux, S.F. et al., unpublished datascott.lamoureux@queensu.caLimitedNot Applicable2007-Jun-122007-Jul-1574.8974.9-109.6-109.6Queen's UniversityScott Lamoureuxscott.lamoureux@queensu.ca613-533-6033Department of GeographyONKingstonK7L3N6CanadaGeographic locations:Cape Bounty; Natural sciences:Dissolved organic carbon (DOC); Natural sciences:Earth Sciences; Natural sciences:Lake; Natural sciences:Limnology; Natural sciences:Water chemistryHilary Dugan:Originator; Myrna Simpson:Collaborator; Scott Lamoureux:Principal Investigator-109.6,74.89 -109.6,74.9111REAPPROVEDDevon Island Ice Cap: core A borehole spectrometryArcticNetDevon Island Ice Cap core A was recovered from 75.3448°N and 83.7015°W at 1415 m elevation on 7 May 2005. Borehole gamma spectrometry was performed using an NaI(T1) detector attached to a multi-spectrum analyzer. Gamma emissions were counted for a 20 min period over four discrete energy bands: background 1 band (885 to 1001 keV), 137CS band (626 to 749 keV), background 2 band (338 to 433 keV) and 109Cd control band (49 to 117 keV). The 109Cd activity originated from a 109Cd source fixed to the detector to ensure the absence of instrument drift. This dataset is intended to supplement layer counting in the "Devon Island Ice Cap: core A stratigraphy" datasets.The purpose is to constrain annual layer counting by identifying the 1963 peak 137Cs horizon due to atmospheric thermonuclear weapons testing.CompleteUnknown2007-07-312014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1960-Jan-12003-Jan-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Atmosphere; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstructionJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6112REAPPROVEDDevon Island Ice Cap: core B borehole spectrometryArcticNetDevon Island Ice Cap core B was recovered from 75.3427°N and 83.3525°W at 1630 m elevation on 10 May 2005. Borehole gamma spectrometry was performed using an NaI(T1) detector attached to a multi-spectrum analyzer. Gamma emissions were counted for a 20 min period over four discrete energy bands: background 1 band (885 to 1001 keV), 137CS band (626 to 749 keV), background 2 band (338 to 433 keV) and 109Cd control band (49 to 117 keV). The 109Cd activity originated from a 109Cd source fixed to the detector to ensure the absence of instrument drift. This dataset is intended to supplement layer counting in the "Devon Island Ice Cap: core B stratigraphy" datasets.The purpose is to constrain annual layer counting by identifying the 1963 peak 137Cs horizon due to atmospheric thermonuclear weapons testing.CompleteUnknown2007-07-312014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1960-Jan-12003-Jan-174.675.8-80.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Atmosphere; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstructionJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -80.5,75.8 -80.5,74.6113REAPPROVEDDevon Island Ice Cap: core C borehole spectrometryArcticNetDevon Island Ice Cap core C was recovered from 75.3399°N and 82.6763°W at 1825 m elevation on 10 May 2004. Borehole gamma spectrometry was performed using an NaI(T1) detector attached to a multi-spectrum analyzer. Gamma emissions were counted for a 20 min period over four discrete energy bands: background 1 band (885 to 1001 keV), 137CS band (626 to 749 keV), background 2 band (338 to 433 keV) and 109Cd control band (49 to 117 keV). The 109Cd activity originated from a 109Cd source fixed to the detector to ensure the absence of instrument drift. This dataset is intended to supplement layer counting in the "Devon Island Ice Cap: core C stratigraphy" datasets.To constrain annual layer counting by identifying the 1963 peak 137Cs horizon due to atmospheric thermonuclear weapons testing.CompleteUnknown2007-07-312019-11-20Devon Island Ice CapColgan, W., & Sharp, M. (2007). Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 07J044.martin.sharp@ualberta.caPublicNot Applicable1960-Jan-11970-Jan-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Arctic; Geographic locations:Devon Island; Natural sciences:Atmosphere; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstructionBurgess, David:Originator; Mair, Douglas:Principal Investigator-84.5,75.8 -83.5,75.8 -82.5,75.8 -81.5,75.8 -80.5,75.8 -79.5,75.8 -79.4,75.8 -79.4,74.8 -79.4,74.6 -80.4,74.6 -81.4,74.6 -82.4,74.6 -83.4,74.6 -84.4,74.6 -84.5,74.6 -84.5,75.6 -84.5,75.8114REAPPROVEDDevon Island Ice Cap: core D borehole spectrometryArcticNetDevon Island Ice Cap core C was recovered from 75.3399°N and 82.6763°W at 1825 m elevation on 10 May 2004. Borehole gamma spectrometry was performed using an NaI(T1) detector attached to a multi-spectrum analyzer. Gamma emissions were counted for a 20 min period over four discrete energy bands: background 1 band (885 to 1001 keV), 137CS band (626 to 749 keV), background 2 band (338 to 433 keV) and 109Cd control band (49 to 117 keV). The 109Cd activity originated from a 109Cd source fixed to the detector to ensure the absence of instrument drift. This dataset is intended to supplement layer counting in the "Devon Island Ice Cap: core D stratigraphy" datasets.The purpose is to constrain annual layer counting by identifying the 1963 peak 137Cs horizon due to atmospheric thermonuclear weapons testing.CompleteUnknown2007-07-312014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1960-Jan-12003-Jan-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Atmosphere; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstructionJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6115REAPPROVEDDevon Island Ice Cap: core E borehole spectrometryArcticNetDevon Island Ice Cap core C was recovered from 75.3399°N and 82.6763°W at 1825 m elevation on 10 May 2004. Borehole gamma spectrometry was performed using an NaI(T1) detector attached to a multi-spectrum analyzer. Gamma emissions were counted for a 20 min period over four discrete energy bands: background 1 band (885 to 1001 keV), 137CS band (626 to 749 keV), background 2 band (338 to 433 keV) and 109Cd control band (49 to 117 keV). The 109Cd activity originated from a 109Cd source fixed to the detector to ensure the absence of instrument drift. This dataset is intended to supplement layer counting in the "Devon Island Ice Cap: core E stratigraphy" datasets.The purpose is to constrain annual layer counting by identifying the 1963 peak 137Cs horizon due to atmospheric thermonuclear weapons testing.CompleteUnknown2007-07-312014-09-18Devon Island Ice Cap, Nunavut, CanadaColgan, W. and M. Sharp, 2008. Combined oceanic and atmospheric influence on net accumulation on the Devon Island Ice Cap, Nunavut, Canada. J. Glaciol. 54(184): 28-40.martin.sharp@ualberta.caPublicNot Applicable1960-Jan-12003-Jan-174.675.8-84.5-79.4University of AlbertaMartin Sharpmartin.sharp@ualberta.ca780-492-5249 1-26 Earth Sciences BuildingABEdmontonT6E2G3CanadaGeographic locations:Devon Island; Natural sciences:Atmosphere; Natural sciences:Glaciers; Natural sciences:Ice cores; Natural sciences:Paleoclimatic reconstructionJames Davis:Collaborator; Martin Sharp:Originator; Martin Sharp:Principal Investigator; William Colgan:Collaborator-84.5,74.6 -83.5,74.6 -82.5,74.6 -81.5,74.6 -80.5,74.6 -79.5,74.6 -79.4,74.6 -79.4,75.8 -80.4,75.8 -81.4,75.8 -82.4,75.8 -83.4,75.8 -84.4,75.8 -84.5,75.8 -84.5,74.6116REAPPROVEDBacterial transect over the Mackenzie Shelf, fall 2002CASESSpatial patterns in prokaryotic biodiversity and production were assessed in the Mackenzie Shelf region of the Beaufort Sea during open water conditions. The sampling transect extended 350 km northwards, from upstream freshwater sites in the Mackenzie River to coastal and offshore sites towards the edge of the perennial arctic ice pack. Data collected included: temperature, salinity, suspended particulate material, dissolved organic carbon, chlorophyll a, and bacteria and picocyanobacteria abundance. Bacterial community composition was assessed by catalyzed reporter deposition for fluorescence in situ hybridization (CARD-FISH).To evaluate the offshore pattern in prokaryotic community composition and production of the Mackenzie River plume.CompleteAs needed2007-08-012015-03-16Mackenzie Shelf, Beaufort SeaGarneau M-E, Vincent WF, Alonso-Saez L, Gratton Y, Lovejoy C (2005) Prokaryotic community structure and heterotrophic production in a river-influenced coastal arctic ecosystem. Aquatic Microbial Ecology 42, 27-40warwick.vincent@bio.ulaval.caLimitedNot Applicable2002-Sep-222002-Oct-146872-135-120Centre d'Études Nordiques (CEN) & Dépt de biologieWarwick Vincentwarwick.vincent@bio.ulaval.ca418-656-3340Université LavalQCQuébec CityG1V 0A6CanadaGeographic locations:Arctic Ocean; Geographic locations:Mackenzie Shelf; Natural sciences:Archaea; Natural sciences:Bacteria; Natural sciences:BiodiversityMartineau, Christine:Originator; Vincent, Warwick:Principal Investigator-135,68 -134,68 -133,68 -132,68 -131,68 -130,68 -129,68 -128,68 -127,68 -126,68 -125,68 -124,68 -123,68 -122,68 -121,68 -120,68 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -135,68151REAPPROVEDSpatial and seasonal abundances of viruses and bacteria in the southern Beaufort Sea and Amundsen GulfCASESAs part of the Canadian Arctic Shelf Exchange Study (CASES), we investigated the spatial and seasonal distributions of viruses in relation to biotic (bacteria, chlorophyll-a (chl a)) and abiotic variables (temperature, salinity and depth). Sampling occurred in the southern Beaufort Sea Shelf in the region of the Amundsen Gulf and Mackenzie Shelf, between November 2003 and August 2004. Bacterial and viral abundances estimated by epifluorescence microscopy (EFM) and flow cytometry (FC) were highly correlated (r2=0.89 and r2=0.87, respectively), although estimates by EFM were slightly higher (FC=1.08×EFM+0.12 and FC=1.07×EFM+0.43, respectively). Viral abundances ranged from 0.13×10^6 to 23×10^6/ml, and in surface waters were ~2-fold higher during the spring bloom in May and June and ~1.5-fold higher during July and August, relative to winter abundances. These increases were coincident with a ~6-fold increase in chl a during spring and a ~4-fold increase in bacteria during summer. Surface viral abundances near the Mackenzie River were ~2-fold higher than in the Mackenzie Shelf and Amundsen Gulf regions during the peak summer discharge, concomitant with a ~5.5-fold increase in chl a (up to 2.4 &#956;g /l) and a ~2-fold increase in bacterial abundance (up to 22×10^5 /ml). Using FC, two subgroups of viruses and heterotrophic bacteria were defined.The data presented here are to document about the seasonal and spatial variability in both viral and bacterial abundances 1) at station 200 in Franklin Bay from November 2003 to August 2004 and 2) along a longitudinal transect extending from the Mackenzie River to the Amundsen Gulf from July 2004 to August 2004. These samples were taken to evaluate the influence of the Mackenzie River on bacterial and viral properties during the summer and also to determine the major physical and biological drivers of marine viruses.CompleteAs needed2007-08-312013-02-08Amundsen Gulf, Mackenzie Shelf, Beaufort SeaPayet J. and Suttle C.A. (in press). Physical and biological correlates of virus dynamics in the southern Beaufort Sea and Amundsen Gulf. Journal of Marine Systems xx (2007) xxx¿xxx doi:10.1016/j.jmarsys.2007.11.002csuttle@eos.ubc.caPublicNot Applicable2003-Nov-42004-Aug-1069.571.5-138.6-122.3University of British ColumbiaCurtis Suttlecsuttle@eos.ubc.ca604.822.8610604.822.60911461 BioSciences, 6270 University Blvd.BCVancouverV6T1Z4CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Franklin Bay; Geographic locations:Mackenzie Shelf; Natural sciences:Bacteria; Natural sciences:Ice break-up; Natural sciences:River; Natural sciences:Temperature; Natural sciences:VirusCurtis Suttle:Principal Investigator; Payet Jerome:Originator-138.6,69.5 -137.6,69.5 -136.6,69.5 -135.6,69.5 -134.6,69.5 -133.6,69.5 -132.6,69.5 -131.6,69.5 -130.6,69.5 -129.6,69.5 -128.6,69.5 -127.6,69.5 -126.6,69.5 -125.6,69.5 -124.6,69.5 -123.6,69.5 -122.6,69.5 -122.3,69.5 -122.3,71.5 -123.3,71.5 -124.3,71.5 -125.3,71.5 -126.3,71.5 -127.3,71.5 -128.3,71.5 -129.3,71.5 -130.3,71.5 -131.3,71.5 -132.3,71.5 -133.3,71.5 -134.3,71.5 -135.3,71.5 -136.3,71.5 -137.3,71.5 -138.3,71.5 -138.6,71.5 -138.6,69.5152REAPPROVEDWater carbonate chemistry in the Beaufort SeaCASESSamples were collected throughout the water column in the Beaufort Sea and on the Mackenzie Shelf during September-October 2002 and between September 2003 and August 2004. Water samples were recovered using a 24-Niskin bottle rosette/CTD sampling system (SeaBird SBE 911) and transferred to 500 mL glass bottles using standard protocols (DOE, 1997). Total dissolved inorganic carbon (DIC) concentrations were determined by coulometric titration using a SOMMA instrument (Johnson et al., 1993) fit to a UIC 5011 coulometer. Most analyses were conducted on board according to standard protocols (DOE, 1997) and calibrated against a certified reference materials (CRM Batches 57 & 61). Total alkalinity was measured by open cell potentiomentric titration ei. In 2002, the endpoint was determined by modified gran plots, and in 2003-04, a Titrilab 865 titrator was used in continuous titrant addition mode, an algorithm specifically designed for shallow end-point detection. The analyses were calibrated against certified reference materials (CRM Batches 57 & 61). The pH was determined colorimetrically using a Hewlett-Packard (HP-8453A) UV-Visible diode array spectrophotometer and a 5-cm quartz cell. Phenol red and m-cresol purple were used as indicators.The data are not available for public use and remain in the possession investigators. They include: location, date, time, and depth of sampling pH (total proton concentration scale) Titration alkalinity (µmol/kg-sw) Dissolved inorganic carbon (DIC, µmol/kg-sw)Characterize the inorganic carbon budget in the Beaufort Sea and CO2 gradient across the air-sea interfacePlannedAs needed2007-09-052017-12-21Beaufort SeaMucci, A., Miller, L., Water carbonate chemistry in the Beaufort Sea. Unpublished Dataalm@eps.mcgill.ca, MillerLi@pac.dfo-mpo.gc.caLimitedNot Applicable2002-Sep-222004-Aug-106973-136-122McGill UniversityAlfonso Muccialfonso.mucci@mcgill.ca51439848925143984892Department of Earth & Planetary Sciences, 3450 University StreetQuebecMontrealH3A 0E8CanadaNatural sciences:Carbon; Natural sciences:Carbon dioxide; Natural sciences:Carbon fluxes; Natural sciences:Ice; Natural sciences:Oceanography; Natural sciences:Water columnAlfonso Mucci:Principal Investigator; Lisa Miller:Originator-136,73 -135,73 -134,73 -133,73 -132,73 -131,73 -130,73 -129,73 -128,73 -127,73 -126,73 -125,73 -124,73 -123,73 -122,73 -122,72 -122,71 -122,70 -122,69 -123,69 -124,69 -125,69 -126,69 -127,69 -128,69 -129,69 -130,69 -131,69 -132,69 -133,69 -134,69 -135,69 -136,69 -136,70 -136,71 -136,72 -136,73158REAPPROVEDAcoustic data in the Beaufort Sea - OverwinteringCASESThis data set is composed of raw files recorded with a SIMRAD EK60 three-frequency (38, 120, and 200 kHz) split-beam echosounder that was operated continuously during this period at the fixed station.Three 7° transducers were hull-mounted, two in oil-filled arctic wells protected by a 2.5 cm thick acoustically transparent polycarbonate plate (38 and 120 kHz) and one in a Traveocean piston well in direct contact with water (200 kHz). The acoustic signal was recorded continuously on a PC using ER60 software version 2.0.0. Ping interval was set at 2 or 3 s and the pulse length was set at 1.024 ms.Arctic cod is the most abundant and dominant fish in Arctic marine food web, transfering the energy from zooplankton to top predators. In the Canadian Arctic, the large biomass of this key species that must exist to support predators¿ consumption estimates has eluded detection. Sampling difficulties in the harsh environment have limited studies of Arctic cod to coastal shallow waters during summer and to the immediate under-ice water. This data set aimed at describing Arcti cod,s distribution, biomass and behaviour during winter.PlannedAs needed2007-09-062013-02-08Franklin Bay, NWT, LAIQABenoit, D., Y. Simard, and L. Fortier (2008), Hydroacoustic detection of large winter aggregations of Arctic cod (Boreogadus saida) at depth in ice-covered Franklin Bay (Beaufort Sea), J Geophys. Res., 113, C06S90, doi:10.1029/2007JC004276 Benoit D., Y. Simard, J. Gagné, M. Geoffroy, L. Fortier (2010). From polar night to midnight sun: photoperiod, seal predation, and the diel vertical migrations of polar cod (Boreogadus saida) under landfast ice in the Arctic Ocean. Polar Biology. doi:SimardY@dfo-mpo.gc.caLimitedNot Applicable2003-Dec-182004-Jun-17070-126-126ArcticNet - Université LavalLouis Fortierlouis.fortier@bio.ulaval.ca418-656-56461045, avenue de la Médecine, Pav. Vachon, U. LavalQCQuébecG1V 0A6CanadaGeographic locations:Beaufort Sea; Natural sciences:Acoustic; Natural sciences:Arctic cod; Natural sciences:Biomass; Natural sciences:Sea iceAlexandre Forest:Collaborator; Delphine Benoit:Originator; Louis Fortier:Principal Investigator; Pascal Massot:Collaborator; Sonia Brugel:Collaborator; Sylvain Blondeau:Collaborator; Yvan Simard:Point of Contact-126,70161REAPPROVEDAcoustic data in the Beaufort Sea - Open water seasonCASESThe data set is composed of raw files recorded with a SIMRAD EK60 three-frequency split-beam echosounder that was operated continuously during this period in the study area. Three 7° transducers were hull-mounted, two in oil-filled arctic wells protected by a 2.5 cm thick acoustically transparent polycarbonate plate (38 and 120 kHz) and one in a Traveocean piston well in direct contact with water (200 kHz). The acoustic signal was recorded continuously on a PC using ER60 software version 2.0.0. Ping interval was set at 2 or 3 s and the pulse length was set at 1.024 ms.Arctic cod is the most abundant and dominant fish in Arctic marine food web, transfering the energy from zooplankton to top predators. In the Canadian Arctic, the large biomass of this key species that must exist to support predators¿ consumption estimates has eluded detection. Sampling difficulties in the harsh environment have limited studies of Arctic cod to coastal shallow waters during summer and to the immediate under-ice water. This data set has been collected in order to describe Arctic cod's biomass distribution, behaviour and biomass during the open water season in the Amundsen Gulf and Mackenzie shelf.PlannedAs needed2007-09-062013-09-02Southeastern Beaufort seaBenoit, D., et al. Acoustic data in the Beaufort Sea - Open water season. Unpublised Data.SimardY@dfo-mpo.gc.caLimitedNot Applicable2003-Sep-242004-Aug-126972-136-115ArcticNet - Université LavalLouis Fortierlouis.fortier@bio.ulaval.ca418-656-56461045, avenue de la Médecine, Pav. Vachon, U. LavalQCQuébecG1V 0A6CanadaGeographic locations:Amundsen Gulf; Geographic locations:Beaufort Sea; Natural sciences:Acoustic; Natural sciences:Arctic cod; Natural sciences:Biomass; Natural sciences:Sea iceDelphine Benoit:Originator; Françoise Proust:Collaborator; Jacques Gagné:Collaborator; Louis Fortier:Principal Investigator; Pascal Massot:Collaborator; Sylvain Blondeau:Collaborator; Yvan Simard:Point of Contact-136,69 -135,69 -134,69 -133,69 -132,69 -131,69 -130,69 -129,69 -128,69 -127,69 -126,69 -125,69 -124,69 -123,69 -122,69 -121,69 -120,69 -119,69 -118,69 -117,69 -116,69 -115,69 -115,72 -116,72 -117,72 -118,72 -119,72 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -136,69210REAPPROVEDTemporal dynamics of phytoplankton primary production in Frankiln Bay (Southeastern Beaufort Sea) in winter and spring 2004CASESThis dataset consists of phytoplankton primary production rates estimated at a fixed station under the ice in Franklin Bay (Southeastern Beaufort Sea), every one or two weeks, for different size fractions: >0.7µm and >5µm. Sampling took place from February to May 2004. Daily primary production rates were estimated by 14C-uptake, incubations were run under artificial light (close to irradiance available unde the ice) and cold temperature (0°C).This study was conducted to assess biological variables and processes during the winter-spring transition in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change and to assess the productivity of Arctic seas.CompleteAs needed2007-09-072013-02-08Franklin Bay, NWT, LAIQAUnpublished dataserge_demers@uqar.qc.caPublicNot Applicable2004-Feb-32004-May-287070-126.3-126.3UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Franklin Bay; Natural sciences:Phytoplankton; Natural sciences:Primary productionChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-126.3,70203REAPPROVEDTaxonomic composition of phytoplankton in the Southeastern Beaufort Sea in 2002, 2003 and 2004CASESThis dataset consists of taxonomic identifiaction of the phytoplanktonic community. Sampling took place from September to October 2002 and from September 2003 to August 2004; samples were taken at one or 3 depth (fluorescence maximum, and/or surface and 1% light). Cells were indentified by inverted microscopy to genus or species level when possible or placed is size categories of the different phytoplanktonic groups.This study was conducted to improve our understanding of the phytoplankton ecology during the fall 2002 and from fall 2003 to summer 2004, in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on phytoplankton community composition.CompleteNone planned2007-09-072013-02-08Southeastern Beaufort SeaBrugel S, Nozais C, Poulin M, Tremblay J-E, Miller LA, Simpson KG, Gratton Y, Demers S (2009) Phytoplankton biomass and production in the Southern Beaufort Sea in autumn 2002 and 2003. Mar Ecol Prog Ser 377:63-77 Brugel S (2009) Étude des variations spatiales et temporelles du phytoplancton en mer de Beaufort : biomasse, production et structure de taille des communautés. University of Québec at Rimouski, PhD dissertation, 164p.mpoulin@mus-nature.caPublicNot Applicable2002-Sep-232004-Aug-1069.572-140-120Canadian Museum of Nature, Research DivisionMichel Poulinmpoulin@mus-nature.ca1-613-566-47881-613-364-4027PO Box 3443, Station DONOttawaK1P6P4CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Diatoms; Natural sciences:Phytoplankton; Natural sciences:TaxonomyMichel Poulin:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5205REAPPROVEDSpatial distribution of phytoplankton chlorophyll a concentrations in the Southeastern Beaufort Sea in 2002, 2003 and 2004CASESThis dataset consists of vertical profiles of discrete depth sampled over the Southeastern Beaufort Sea for chlorophyll a concentration of different size fractions: >0.7µm, >5µm and >20µm. Sampling took place from September to October 2002, from September to November 2003 and from June to August 2004. Chlorophyll a concentrations were determined by fluorimetry.This study was conducted to assess biological variables and processes during the open water period in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on phytoplankton biomass.CompleteAs needed2007-09-072013-02-08Southeastern Beaufort SeaBrugel S, Nozais C, Poulin M, Tremblay J-E, Miller LA, Simpson KG, Gratton Y, Demers S (2009) Phytoplankton biomass and production in the Southern Beaufort Sea in autumn 2002 and 2003. Mar Ecol Prog Ser 377:63-77 Brugel S (2009) Étude des variations spatiales et temporelles du phytoplancton en mer de Beaufort : biomasse, production et structure de taille des communautés. University of Québec at Rimouski, PhD dissertation, 164p.serge_demers@uqar.qc.caPublicNot Applicable2002-Sep-232004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Chlorophyll; Natural sciences:PhytoplanktonChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator2-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5206REAPPROVEDTemporal dynamics of phytoplankton chlorophyll a concentrations in Frankiln Bay (Southeastern Beaufort Sea) in winter and spring 2003-2004CASESThis dataset consists of vertical profiles of discrete depth sampled weekly at a fixed station under the ice in Franklin Bay (Southeastern Beaufort Sea) for chlorophyll a concentration of different size fractions: >0.7µm and >5µm. Sampling took place from December 2003 to May 2004 through the moon-pool of the CCGS Amundsen for depth ranging from 10m to the bottom and through a hole in the ice cover for the surface depth (3-10m). Chlorophyll a concentrations were determined by fluorimetry.This study was conducted to assess biological variables and processes during the winter-spring transition in the Southeastern Beaufort Sea.The data will contribute to our understanding of the effects of climate change on phytoplankton biomass.CompleteAs needed2007-09-072013-02-08Franklin Bay, NWT, LAIQAUnpublished dataserge_demers@uqar.qc.caPublicNot Applicable2003-Dec-102004-May-287070-126.3-126.3UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Franklin Bay; Natural sciences:Chlorophyll; Natural sciences:PhytoplanktonChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-126.3,70207REAPPROVEDSpatial distribution of phytoplankton primary production in the Southeastern Beaufort Sea in 2002, 2003 and 2004CASESThis dataset consists of phytoplankton primary production rates estimated over the Southeastern Beaufort Sea for different size fractions: >0.7µm, >5µm and >20µm. Sampling took place from September to October 2002, from September to November 2003 and from June to August 2004. Daily primary production rates were estimated over the euphotic zone by 14C-uptake, incubations were run under in situ simulated conditions.This study was conducted to assess biological variables and processes during the open water period in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change and to assess the productivity of Arctic seas.CompleteAs needed2007-09-072013-02-08Southeastern Beaufort SeaBrugel S, Nozais C, Poulin M, Tremblay J-E, Miller LA, Simpson KG, Gratton Y, Demers S (2009) Phytoplankton biomass and production in the Southern Beaufort Sea in autumn 2002 and 2003. Mar Ecol Prog Ser 377:63-77 Brugel S (2009) Étude des variations spatiales et temporelles du phytoplancton en mer de Beaufort : biomasse, production et structure de taille des communautés. University of Québec at Rimouski, PhD dissertation, 164p.serge_demers@uqar.qc.caPublicNot Applicable2002-Sep-242004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Phytoplankton; Natural sciences:Primary productionChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.513209APPROVEDBenthic Biomonitoring of the Apex River and Airport Creek; A Community-Based Approach in Iqaluit, Nunavut, CanadaAPAN-AANDC - Adaptation Program for Aboriginals and NorthernersA useful tool for monitoring the ecological health of aquatic systems is by means of benthic invertebrate analysis in a biomonitoring approach. Here, we investigate an approach for monitoring biological impairment in Arctic streams from anthropogenic land-use at two streams with different levels of development in Iqaluit, Nunavut including Airport Creek, a heavily urbanized stream and Apex River, a control site with mainly peri-urban impact in the summers of 2007-2009, 2014-2019, and 2018-2019. Invertebrate community structure and abundance were assessed with a methodology successfully adopted in temperate systems – a before-after-control-impact (BACI) study. Sites upstream of development, at mid-point locations, and at the mouth of each waterbody to address spatial relationships of site degradation. Subfamily identification of Chironomidae, and family-level resolution for all other taxa was used. Summary metrics (e.g. Shannon index, relative abundance) revealed biological impairment in downstream and mid-point sites in Airport Creek – a shift in community structure and species richness was statistically significant. Apex River benthos revealed a retention of complex community structure throughout the entirety of the river.A biomonitoring study of the Airport Creek and Apex River focused on Benthic Macroinvertebrates collected from 2007-2009, 2014-2019, and 2018-2019.CompleteAs needed2021-01-262021-02-02Iqaluit, Nunavut, CanadaMedeiros, A.S., Williams, A., Milosevic, D. (2021) Assessment of ecological impairment of Arctic rivers: challenges and future directions. https://doi.org/10.21963/13209andrew.medeiros@dal.caLimitedNot Applicable2007-Jul-112019-Aug-163.73263.797-68.573-68.451Dalhousie UniversityAndrew Medeirosandrew.medeiros@dal.ca90249463556100 University Ave, Suite 5010Nova ScotiaHalifaxB3H4R2CanadaGeographic locations:Apex River; Health sciences and contaminants:Water quality; Natural sciences:Benthic surveys; Natural sciences:Benthos; Natural sciences:Biodiversity; Natural sciences:Water; Northern communities:IqaluitMedeiros, Andrew:Originator; Medeiros, Andrew:Principal Investigator5-68.573,63.797 -68.451,63.797 -68.451,63.732 -68.573,63.732 -68.573,63.797211REAPPROVEDSpatial distribution of small phytoplankton (<20µm) in the Southeastern Beaufort Sea in fall 2002CASESThis dataset consists of vertical profiles of discrete depth sampled over the Southeastern Beaufort Sea to determine small phytoplankton cell abundance. Sampling took place from September to October 2002. Small phytoplankton cells were counted by flow cytometry, the 2 and 10µm tresholds were used to separate picophytoplankton (<2µm), small nanophytoplankton (2-10µm) and large nanophytoplankton (10-20µm).This study was conducted to improve our understanding of the phytoplankton ecology during the fall 2002 in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on phytoplankton community size structure.CompleteNone planned2007-09-072013-02-08Southeastern Beaufort SeaSchloss IR, Nozais C, Mas S, van Hardenberg B, Carmack E, Tremblay J-E, Brugel S, Demers S (2008) Picophytoplankton and nanophytoplankton abundance and distribution in the southeastern Beaufort Sea (Mackenzie Shelf and Amundsen Gulf) during fall 2002. J Mar Syst, doi:10.1016/j.jmarsys.2008.01.004.serge_demers@uqar.qc.caPublicNot Applicable2002-Sep-232002-Oct-1469.572-134-121UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Nanoflagellates; Natural sciences:Phytoplankton; Natural sciences:PicoplanktonChristian Nozais:Collaborator; Irene Schloss:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -134,69.5212REAPPROVEDSpatial distribution of small phytoplankton (<20µm) in the Southeastern Beaufort Sea in 2003-2004CASESThis dataset consists of vertical profiles of discrete depth (0 to 100m) sampled over the Southeastern Beaufort Sea to determine small phytoplankton cell abundance. Sampling took place from September to November 2003 and from June to August 2004. Small phytoplankton cells were counted by flow cytometry, the 3 and 10µm tresholds were used to separate picophytoplankton (<3µm), small nanophytoplankton (3-10µm) and large nanophytoplankton (10-20µm).This study was conducted to improve our understanding of the phytoplankton ecology during the fall 2003 and spring-summer 2004, under open water conditions, in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on phytoplankton community size structure.CompleteNone planned2007-09-072013-02-08Southeastern Beaufort SeaBrugel S (2009) Étude des variations spatiales et temporelles du phytoplancton en mer de Beaufort : biomasse, production et structure de taille des communautés. University of Québec at Rimouski, PhD dissertation, 164p.serge_demers@uqar.qc.caPublicNot Applicable2003-Sep-302004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Nanoflagellates; Natural sciences:Phytoplankton; Natural sciences:PicoplanktonChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5213REAPPROVEDMesozooplankton of the Beaufort Sea: September-October 2002CASESSampling was conducted from 22 September to 14 October 2002 at 36 stations spaced at intervals of approximately 15 nautical miles along the cruise track of the NGCC Pierre Radisson. Zooplankton samples were collected with a sampler fitted with 200-µm mesh nets. This sampler was lowered cod-end first to avoid filtration on the downward trajectory and hauled vertically from 10 m above the bottom to the surface. Filtered volume was estimated by a TSK® flow meter mounted inside one of the nets. Samples were preserved in a 4% buffered formalin solution in seawater. Zooplankton samples were sieved through 150 µm and 1000 µm sieves. The two size fractions (200-1000 and >1000 µm) were resuspended in water and all the organisms in a known aliquot containing approximately 300 animals were counted and identified to species, and developmental stages for copepods, or to the lowest possible taxonomical level when species identification proved difficult. The data set lists all the taxa identified at the sampling stations, their individual counts, volume of water sampled, and station depth, thus permitting the determination of species and developmental stages integrated abundances (ind. m-2) or abundances per unit volume (ind. m-3).Zooplankton herbivorous species play an important role in the channelling of energy and organic matter from the primary producers to higher trophic levels occupied by marine vertebrates. Various other processes involved in the biogeochemical flux of carbon in the ocean are mediated by zooplankton. In the context of climatic change, a poleward displacement of southern and temperate zooplankton assemblages from the northeast Atlantic and north Pacific is expected. This will bring the unique Arctic cold specialised zooplankton assemblages under stronger competitive pressure, possibly resulting in species extinction and major disruptions of the Arctic marine ecosystems that need to be investigated. In this context, knowledge of arctic zooplankton community structure and diversity in different sectors of the Arctic Ocean needs to be improved in order to start monitoring the evolution of these communities over time. This data set was collected to describe the zooplankton assemblages and their distribution in southeastern Beaufort Sea in the fall of 2002.CompleteAs needed2007-09-072013-02-08Southeastern Beaufort SeaDarnis, G., Barber, D.G. and Fortier, L., submitted. Sea ice and the onshore-offshore gradient in pre-winter zooplankton assemblages in south-eastern Beaufort Sea. J. Mar. Syst. 74 (3-4): 994-1011louis.fortier@bio.ulaval.caLimitedNot Applicable2002-Sep-222002-Oct-146973-141-120ArcticNet - Université LavalLouis Fortierlouis.fortier@bio.ulaval.ca418-656-56461045, avenue de la Médecine, Pav. Vachon, U. LavalQCQuébecG1V 0A6CanadaGeographic locations:Amundsen Gulf; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Biodiversity; Natural sciences:Marine ecology; Natural sciences:Sea ice; Natural sciences:ZooplanktonAnna Prokopowicz:Collaborator; Gérald Darnis:Originator; Louis Fortier:Principal Investigator; Louis Létourneau:Collaborator; Luc Michaud:Collaborator-141,69 -140,69 -139,69 -138,69 -137,69 -136,69 -135,69 -134,69 -133,69 -132,69 -131,69 -130,69 -129,69 -128,69 -127,69 -126,69 -125,69 -124,69 -123,69 -122,69 -121,69 -120,69 -120,73 -121,73 -122,73 -123,73 -124,73 -125,73 -126,73 -127,73 -128,73 -129,73 -130,73 -131,73 -132,73 -133,73 -134,73 -135,73 -136,73 -137,73 -138,73 -139,73 -140,73 -141,73 -141,69214REAPPROVEDPAR and UVR downwelling irradiance in the Southeastern Beaufort Sea in 2003-2004CASESThis dataset consists of continuous records of downwelling irradiances at several UVR (305, 313, 320, 340 and 380nm) and PAR wavelengths, from September to November 2003 and from June to August 2004. The GUV-510 surface radiometer (Biospherical Instruments), mounted on the top of the wheelhouse of the CCGS Amundsen, provided a measure of cosine-corrected downwelling irradiance in the UVR and PAR.This study was conducted to characterize the surface downwelling irradiance. These data will contribute to our understanding of the effects of climate change associated with light irradiance and phytoplankton physiology.CompleteAs needed2007-09-072013-09-02Southeastern Beaufort SeaBrugel, S., Demers, S., PAR and UVR downwelling irradiance in the Southeastern Beaufort Sea in 2003-2004. Unpublished Dataserge_demers@uqar.qc.caPublicNot Applicable2003-Sep-302004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Photosynthetically available radiation (PAR); Natural sciences:Ultraviolet radiationSerge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5215REAPPROVEDUnderwater PAR and UVR downwelling irradiance profiles in the Southeastern Beaufort Sea in 2004CASESThis dataset consists of vertical profiles of underwater downwelling irradiances at several UVR (305, 313, 320, 340 and 380nm) and PAR wavelengths, from June to August 2004. Vertical light profiles were performed using a PUV-511 underwater radiometer (Biospherical Instruments) that provides a measure of cosine-corrected downwelling irradiance in the UVR and PAR. Irradiances were corrected by the dark values and normalized to the ambient conditions at the beginning of the profile, using ambient values given by a GUV-510 surface radiometer (Biospherical Instruments) mounted on the top of the wheelhouse of the CCGS Amundsen.These data were collected in order to monitor the optical characteristics of the water column. These data will contribute to our understanding of the effects of climate change associated with light irradiance and phytoplankton physiology.CompleteAs needed2007-09-072013-09-02Southeastern Beaufort SeaBrugel, S., Demrs, S. Underwater PAR and UVR downwelling irradiance profiles in the Southeastern Beaufort Sea in 2004. Unpublished Dataserge_demers@uqar.qc.caPublicNot Applicable2004-Jun-42004-Aug-969.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Photosynthetically available radiation (PAR); Natural sciences:Ultraviolet radiationSerge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5216REAPPROVEDSpatial distribution of bacteria abundance in the Southeastern Beaufort Sea in 2002, 2003 and 2004CASESThis dataset consists of vertical profiles of discrete depth sampled over the Southeastern Beaufort Sea to determine bacteria abundance. Sampling took place from September to October 2002, from September to November 2003 and from June to August 2004. Bacteria concentrations were counted by flow cytometry.This data were collected in order to assess the importance of bacterial community on a wide spatial coverage, during the open water period in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on microbial communities.PlannedAs needed2007-09-072013-09-02Southeastern Beaufort SeaBrugel, S. et al. Spatial distribution of bacteria abundance in the Southeastern Beaufort Sea in 2002, 2003 and 2004. Unpublished Data.serge_demers@uqar.qc.caPublicNot Applicable2002-Sep-232004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:BacteriaChristian Nozais:Collaborator; Claude Belzile:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5217REAPPROVEDTemporal dynamics of bacteria abundance in Frankiln Bay (Southeastern Beaufort Sea) in winter and spring 2003-2004CASESThis dataset consists of vertical profiles of discrete depth sampled weekly at a fixed station under the ice in Franklin Bay (Southeastern Beaufort Sea) to determine bacteria abundance. Sampling took place from December 2003 to May 2004 through the moon-pool of the CCGS Amundsen for depth ranging from 10m to the bottom and through a hole in the ice cover for the surface depth (3-10m). Bacteria concentrations were counted by flow cytometry.This data were collected in order to essess the importance of bacterial community during the winter-spring transition in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on microbial communities.CompleteAs needed2007-09-072013-02-08Franklin Bay, NWT (LAIQA)Belzile C, Brugel S, Nozais C, Gratton Y, Demers S (2008) Variations of the abundance and nucleic acid content of heterotrophic bacteria in Beaufort Shelf waters during winter and spring. J Mar Syst, doi:10.1016/j.jmarsys.2007.12.010.serge_demers@uqar.qc.caPublicNot Applicable2003-Dec-102004-May-287070-126.3-126.3UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Franklin Bay; Natural sciences:Bacteria; Natural sciences:MicroorganismsClaude Belzile:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-126.3,70218REAPPROVEDMetazoan meiofauna spatial distribution in the Southeastern Beaufort Sea in 2003-2004CASESThis dataset consists of abundances of the main meiofaunal groups from the first top centimeter of the sediment. Sampling took place from October to November 2003 and from June to August 2004. Meiofauna was separated in 6 mains groups: nematodes, copepods, crustacean nauplii, turbellarians, kinorhynchs and polychaetes.These data were collected in order to study the dynamics of metazoan meiofauna, in the Southeastern Beaufort Sea during autumn 2003 and spring¿summer 2004,and to assess the strength of pelagic¿benthic coupling.CompleteAs needed2007-09-072013-02-08Southeastern Beaufort SeaBessière A, Nozais C, Brugel S, Demers S, Desrosiers G (2007) Metazoan meiofauna dynamics and pelagic¿benthic coupling in the Southeastern Beaufort Sea, Arctic Ocean. Polar Biology 30:1123-1135serge_demers@uqar.qc.caPublicNot Applicable2003-Oct-12004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:BenthosAurélie Bessière:Collaborator; Christian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5496REAPPROVEDArcticNet 0603b - Northwest Passage CTD dataArcticNetThe CTD data was obtained during leg #0603 of the 2006 ArcticNet scientific cruise. The data were collected from September 29 to 30 and from October 19 to 25, 2006, aboard the CCGS Amundsen. There were 31 casts, associated to 22 oceanographic stations, in the Northwest Passage research area. The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), pH (Sea-Bird SBE-18-I), fluorescence (Seapoint chlorophyll fluorometer), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissiometer), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.The physical data are one of the tools used to characterize the water masses and, to some extent, the water circulation in the Northwest Passage.CompleteAs needed2007-11-262014-05-12Northwest PassageSimard, A; Rail,M.E and Gratton, Y (2010): Distribution of temperature and salinity in the Canadian Arctic Archipelago during the 2006 ArcticNet sampling expedition (from August 22nd to November 9th 2006). Report No R1127, INRS-ETE, Québec (Qc): vi + 79 p.pdc@arcticnet.ulaval.caPublicNot Applicable2006-Sep-292006-Oct-256776-120-70ArcticNetAmundsen Science Core Data Collection DATA Coordinator : Tahiana Ratsimbazafypdc@arcticnet.ulaval.ca418-656-2411418-656-2334Pavillon Vachon, Local 4081QuébecQuébecG1V 0A6CanadaGeographic locations:Northwest Passage; Natural sciences:Conductivity; Natural sciences:CTD profiles; Natural sciences:Fluorescence; Natural sciences:Nitrates; Natural sciences:Oxygen; Natural sciences:Photosynthetically available radiation (PAR); Natural sciences:Salinity; Natural sciences:Temperature; Natural sciences:TransmittanceDumont Dany:Collaborator; Gratton Yves:Originator; Gratton Yves:Principal Investigator; Rail Marie-Emmanuelle:Collaborator; Simard Annie:Collaborator; Thanassekos Stéphane:Collaborator76-120,67 -119,67 -118,67 -117,67 -116,67 -115,67 -114,67 -113,67 -112,67 -111,67 -110,67 -109,67 -108,67 -107,67 -106,67 -105,67 -104,67 -103,67 -102,67 -101,67 -100,67 -99,67 -98,67 -97,67 -96,67 -95,67 -94,67 -93,67 -92,67 -91,67 -90,67 -89,67 -88,67 -87,67 -86,67 -85,67 -84,67 -83,67 -82,67 -81,67 -80,67 -79,67 -78,67 -77,67 -76,67 -75,67 -74,67 -73,67 -72,67 -71,67 -70,67 -70,76 -71,76 -72,76 -73,76 -74,76 -75,76 -76,76 -77,76 -78,76 -79,76 -80,76 -81,76 -82,76 -83,76 -84,76 -85,76 -86,76 -87,76 -88,76 -89,76 -90,76 -91,76 -92,76 -93,76 -94,76 -95,76 -96,76 -97,76 -98,76 -99,76 -100,76 -101,76 -102,76 -103,76 -104,76 -105,76 -106,76 -107,76 -108,76 -109,76 -110,76 -111,76 -112,76 -113,76 -114,76 -115,76 -116,76 -117,76 -118,76 -119,76 -120,76 -120,67219REAPPROVEDSpatial distribution of sediment photopigments in the Southeastern Beaufort Sea in 2003-2004CASESThis dataset consists of photopiments (chlorophyll a and pheopigments) concentrations from the first top centimeter of the sediment. Sampling took place from October to November 2003 and from June to August 2004. Photopigments concentrations were determined by fluorimetry.Photopigments data were collected, in the Southeastern Beaufort Sea during autumn 2003 and spring¿summer 2004, in order to assess the strength of pelagic¿benthic coupling.CompleteAs needed2007-09-072013-02-08Canadian Southeastern Beaufort SeaBessière A, Nozais C, Brugel S, Demers S, Desrosiers G (2007) Metazoan meiofauna dynamics and pelagic¿benthic coupling in the Southeastern Beaufort Sea, Arctic Ocean. Polar Biology 30:1123-1135serge_demers@uqar.qc.caPublicNot Applicable2003-Oct-12004-Aug-1069.572-140-120UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Natural sciences:Benthos; Natural sciences:Chlorophyll; Natural sciences:PigmentsAurélie Bessière:Collaborator; Christian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-140,69.5 -139,69.5 -138,69.5 -137,69.5 -136,69.5 -135,69.5 -134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -120,69.5 -120,72 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -135,72 -136,72 -137,72 -138,72 -139,72 -140,72 -140,69.5220REAPPROVEDSpatial distribution of particulate organic carbon in the Southeastern Beaufort Sea in fall 2002CASESThis dataset consists of vertical profiles of discrete depth sampled over the Southeastern Beaufort Sea to determine particulate organic carbon concentrations (POC). Sampling took place from September to October 2002. Water samples were filter on precombusted GF/F filters, POC concentrations were then determined with Perkin-Elmer Model 2400 CHN analyzer.This study was conducted to assess organic matter stocks during the fall 2002, in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on carbon budgets.CompleteAs needed2007-09-072013-09-02Southeastern Beaufort SeaBrugel, S. et al. Spatial distribution of particulate organic carbon in the Southeastern Beaufort Sea in fall 2002. Unpublished Dataserge_demers@uqar.qc.caPublicNot Applicable2002-Sep-232002-Oct-1469.572-134-121UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Carbon; Natural sciences:Particulate organic carbonChristian Nozais:Collaborator; Serge Demers:Principal Investigator; Sonia Brugel:Originator-134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -134,69.5221REAPPROVEDPhysiological state of phytoplankton in the Southeastern Beaufort Sea in fall 2002CASESThis dataset consists of vertical profiles of discrete depth sampled over the Southeastern Beaufort Sea to determine the physiological state of phytoplankton using Pulse Amplitude Modulated fluorometer. Sampling took place from September to October 2002. The potential photochemical efficiency of the reaction centres of PSII (Fv/Fm) of phytoplankton cells were determined by PAM fluorometer (model OS5-FL Opti-Sciences).This study was conducted to improve our understanding of the phytoplankton physiological state during the fall 2002, in the Southeastern Beaufort Sea. The data will contribute to our understanding of the effects of climate change on phytoplankton ecology.CompleteAs needed2007-09-072013-02-08Southeastern Beaufort SeaSchloss IR, Nozais C, Mas S, van Hardenberg B, Carmack E, Tremblay J-E, Brugel S, Demers S (2008) Picophytoplankton and nanophytoplankton abundance and distribution in the southeastern Beaufort Sea (Mackenzie Shelf and Amundsen Gulf) during fall 2002. J Mar Syst, doi:10.1016/j.jmarsys.2008.01.004.serge_demers@uqar.qc.caPublicNot Applicable2002-Sep-232002-Oct-1369.572-134-121UQAR-ISMERSerge Demersserge_demers@uqar.qc.ca1-418-724-16511-418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Mackenzie Shelf; Natural sciences:Photosynthesis; Natural sciences:PhytoplanktonChristian Nozais:Collaborator; Irene Schloss:Originator; Serge Demers:Principal Investigator-134,69.5 -133,69.5 -132,69.5 -131,69.5 -130,69.5 -129,69.5 -128,69.5 -127,69.5 -126,69.5 -125,69.5 -124,69.5 -123,69.5 -122,69.5 -121,69.5 -121,72 -122,72 -123,72 -124,72 -125,72 -126,72 -127,72 -128,72 -129,72 -130,72 -131,72 -132,72 -133,72 -134,72 -134,69.5226REAPPROVEDHPLC Pigment Analysis of the Phytoplankton Community in Franklin BayCASESSample collection: The sampling was part of the Canadian Arctic Shelf Exchange Study (CASES) in which CCGS Amundsen was frozen in Franklin Bay in the coastal Beaufort Sea (Station FB/200) during winter. Upper mixed-layer microbial plankton communities were sampled 5m below the water surface using the ship CTD rosette system equipped with 12L Niskins during openwater conditions. During the time that the ship was frozen in Franklin Bay from December 2003 to early June 2004, samples were taken using a 5L Niskin bottle from 3m below the bottom ice through a 300mm hole that had been drilled 500m upstream of the ship. HPLC pigment analysis: One to two liter samples of water were filtered onto Whatman GF/F filters and stored frozen at -80C until analysis. Phytoplankton pigments on the GF/Fs were extracted in 3mL of 95 percent MeOH and 100 uL of the extracts was injected into a Varian ProStar HPLC equipped with a Symmetry C8 column. The HPLC peaks were detected by diode-array spectroscopy (350-750nm) and absorbance chromatograms were obtained at 440 (for chls) and 450nm (for carotenoids). Chlorophylls were also detected by fluorescence (excitation: 440nm; emission: 650nm). The HPLC solvent protocol was based on gradient dilution with two solvent mixtures (Zapata et al. 2000): a methanol, acetonitrile, and aqueous pyridine (50:25:25 v:v:v) solution; and a methanol, acetonitrile, and acetone (20:60:20 v:v:v) solution. The flow rate was 1mL/ min, and the equilibration time was 7min.To obtain a detailed description of the pigments associated with the phytoplankton community. The pigment analyses from the year-long study in the coastal Beaufort Sea of the western Canadian Arctic showed the continuous prevalence of pigments associated with eukaryotic picoplankton in the green algal class Prasinophyceae. These results confirmed the presence of Micromonas observed by microscopy.CompleteAs needed2007-09-102016-01-14Franklin Bay, Northwest Territories, Canada (LAIQA)Lovejoy, C., Vincent, W.F., Bonilla, S., Roy, S., Martineau, M.-J., Terrado, R., Potvin, M., Massana, R. and Pedrós-Alió, C. 2007. Distribution, phylogeny and growth of cold-adapted picoprasinophytes in arctic seas. J. Phycol. 43, 78-89. Matsuoka, A., Larouche, P., Poulin, M., Vincent, W. and Hattori, H. 2009. Phytoplankton community adaptation to changing light levels in the southern Beaufort Sea, Canadian Arctic, Estuarine, Coastal and Shelf Sciences 82: 537-546.warwick.vincent@bio.ulaval.caPublicNot Applicable2003-Oct-192004-Aug-669.9569.95-126.27-126.27Centre d'Études Nordiques (CEN) & Dépt de biologieWarwick Vincentwarwick.vincent@bio.ulaval.ca418-656-3340Université LavalQCQuébec CityG1V 0A6CanadaGeographic locations:Arctic; Geographic locations:Franklin Bay; Natural sciences:Chlorophyll; Natural sciences:Phytoplankton; Natural sciences:PigmentsMartineau, Marie-Josée:Originator; Vincent, Warwick:Principal Investigator-126.27,69.951303REAPPROVEDAirborne passive microwave surveys over boreal forest and tundra in areas of Québec and the Northwest TerritoriesCBMP/CAFF - Terrestrial; IPY-Variability in Canadian CryosphereThis project was conducted under the umbrella of the 'Variability and Change in the Canadian Cryosphere' network. Passive microwave brightness temperature data were acquired at various spatial resolutions from airborne and spaceborne microwave radiometers during three separate field campaigns in and around: Sept-Îles, Schefferville, Kuujjuaq and Puvirnituq, Quebec (February 18th to March 5th 2008); the Tundra Ecosystem Research Station, Daring Lake, Northwest Territories (April 1st to April 10th 2008); and Inuvik, Northwest Territories (April 3rd to April 16th 2008). Airborne brightness temperature data were acquired from dual-polarized 6.9, 19.35 and 37 GHz microwave radiometers mounted on board the National Research Council of Canada's (NRC) Twin Otter aircraft at resolutions varying from ~70m to ~700m. The radiometers are installed in a special baggage door located on the port-side and underside of the aircraft, each with a 6º antenna beamwidth, at a 53º incidence angle to simulate the earth-viewing characteristics of the satellite-based Special Sensor Microwave/Imager (SSM/I) and Advanced Microwave Scanning Radiometer EOS (AMSR-E) sensors. Calibrations were conducted before and after each flight using a two-point, hot and cold target calibration technique. Snow and lake ice measurements were recorded within or close to the footprint of the airborne radiometers and will be used for sub-Arctic and northern boreal forest SWE algorithm development, refinement and validation.Accurate, long-term, sub-Arctic snow cover information is required for climatological, hydrological, and numerical modeling applications in northern regions. However, information on sub-Arctic tundra snow cover across Canada is limited by a sparse conventional observing network that has a strong coastal bias, and is often not representative of the surrounding conditions. Satellite passive microwave snow monitoring is a viable alternative. Operational methods for estimating snow water equivalent (SWE) with satellite data in prairie and boreal forest environments are presently in use. No passive microwave algorithms exist for high latitude regions. The collection of high resolution passive microwave airborne datasets is essential for providing the linkage between the local snow process scale to the regional satellite measurement scale. This data will be used in conjunction with the 'Sub-arctic tundra snow cover and lake ice measurements' and the 'Snow and vegetation sampling in northern Québec' datasets also found in the IPY Polar Data Catalogue for sub-Arctic and northern boreal forest SWE algorithm development, refinement and validation.CompleteAs needed2008-11-262015-03-11Puvirnituq, Nunavik, Québec; Daring Lake, Northwest Territories; Inuvik, Northwest Territories in CanadaDerksen, C., Unpublished dataChris.Derksen@ec.gc.caLimitedNot Applicable2008-Feb-182008-Apr-205069-135-66Environment CanadaPeter Toosepeter.toose@ec.gc.ca416-739-4354416-739-57004905 Dufferin St.ONTorontoM3H5T4CanadaGeographic locations:Northwest Territories; Geographic locations:Nunavik; Geographic locations:Québec; Natural sciences:Forest-tundra; Natural sciences:Radiometer; Natural sciences:Remote sensing data; Natural sciences:Snow water equivalent (SWE); Natural sciences:Tundra; Transdisciplinary:CRYSYSDerksen, Chris:Originator; Derksen, Chris:Principal Investigator-135,50 -134,50 -133,50 -132,50 -131,50 -130,50 -129,50 -128,50 -127,50 -126,50 -125,50 -124,50 -123,50 -122,50 -121,50 -120,50 -119,50 -118,50 -117,50 -116,50 -115,50 -114,50 -113,50 -112,50 -111,50 -110,50 -109,50 -108,50 -107,50 -106,50 -105,50 -104,50 -103,50 -102,50 -101,50 -100,50 -99,50 -98,50 -97,50 -96,50 -95,50 -94,50 -93,50 -92,50 -91,50 -90,50 -89,50 -88,50 -87,50 -86,50 -85,50 -84,50 -83,50 -82,50 -81,50 -80,50 -79,50 -78,50 -77,50 -76,50 -75,50 -74,50 -73,50 -72,50 -71,50 -70,50 -69,50 -68,50 -67,50 -66,50 -66,69 -67,69 -68,69 -69,69 -70,69 -71,69 -72,69 -73,69 -74,69 -75,69 -76,69 -77,69 -78,69 -79,69 -80,69 -81,69 -82,69 -83,69 -84,69 -85,69 -86,69 -87,69 -88,69 -89,69 -90,69 -91,69 -92,69 -93,69 -94,69 -95,69 -96,69 -97,69 -98,69 -99,69 -100,69 -101,69 -102,69 -103,69 -104,69 -105,69 -106,69 -107,69 -108,69 -109,69 -110,69 -111,69 -112,69 -113,69 -114,69 -115,69 -116,69 -117,69 -118,69 -119,69 -120,69 -121,69 -122,69 -123,69 -124,69 -125,69 -126,69 -127,69 -128,69 -129,69 -130,69 -131,69 -132,69 -133,69 -134,69 -135,69 -135,50227REAPPROVEDSediment cores from the Mackenzie Shelf/Slope and Amundsen GulfCASESA series of measurements were made on each core onboard the ship immediately after sediment recovery. They include the following: 1- multisensor core logger (density, resistivity, magnetic susceptibility, P-wave velocity) 2- spectrophotometry 3- visual description 4- photography Each core was then subsampled continuously for paleomagnetism and CAT Scan analyses, followed by subsampling at 10 cm intervals. The analyses to be performed are as follows: 5- Paleomagnetism 6- CAT Scan 7- Grain size analyses 8- X-Ray 9- Stable isotopes analyses (13C, 15N, C/N, organic carbon) 10- Palynological analyses (dinoflagellate cysts, pollen, spores, other organic microfossils) 11- Foraminifers (planktonic and benthic) 12- 14C dating 13- 210Pb datingA series of sediment cores were collected in 2004 as part of the CASES program in order to document the evolution of sea surface conditions (temperature, salinity, sea ice cover) during the Holocene time period (last 10,000 years), with emphasis on the sea ice history, freshwater input and organic carbon preservation. A total of 39 short (~30 cm) and 7 long (~6 m) sediments cores were collected between June 26 and August 10, 2004 at various locations in the study area. Details on core location (latitude, longitude, water depth, length, etc.) can be found in the CASES legs 8 and 9 cruise reports. All sediment cores are stored at 4ºC at the Natural Resources Canada core repository centre in Dartmouth, Nova Scotia, Canada. Information regarding the availability of each core is available online through the Expedition Database (ED). The cores are labelled as follows: 2004-804-XXX, where XXX represents the CASES station number.CompleteAs needed2007-09-102013-09-02Mackenzie Shelf, Amundsen Gulf, Beaufort SeaRochon, A., Sediment cores from the Mackenzie Shelf/Slope and Amundsen Gulf. Unpublished data.http://gdr.nrcan.gc.ca/ed/index_e.phpPublicNot Applicable2004-Jun-262004-Aug-1069.571-143.5-120ISMER-UQARAndré Rochonandre_rochon@uqar.qc.ca418-723-1986 poste 1742418-724-1842310 allée des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Amundsen Gulf; Geographic locations:Beaufort Sea; Natural sciences:Algae; Natural sciences:Holocene; Natural sciences:Marine sediments; Natural sciences:Microfossils; Natural sciences:Paleoceanography; Natural sciences:Paleoclimatic reconstruction; Natural sciences:ZooplanktonAndré Rochon:Principal Investigator; Dave Scott:Collaborator; Guillaume St-Onge:Originator; Robbie Bennett:Collaborator; Steve Blasco:Collaborator; Trecia Schell:Collaborator-143.5,69.5 -142.5,69.5 -141.5,69.5 -140.5,69.5 -139.5,69.5 -138.5,69.5 -137.5,69.5 -136.5,69.5 -135.5,69.5 -134.5,69.5 -133.5,69.5 -132.5,69.5 -131.5,69.5 -130.5,69.5 -129.5,69.5 -128.5,69.5 -127.5,69.5 -126.5,69.5 -125.5,69.5 -124.5,69.5 -123.5,69.5 -122.5,69.5 -121.5,69.5 -120.5,69.5 -120,69.5 -120,71 -121,71 -122,71 -123,71 -124,71 -125,71 -126,71 -127,71 -128,71 -129,71 -130,71 -131,71 -132,71 -133,71 -134,71 -135,71 -136,71 -137,71 -138,71 -139,71 -140,71 -141,71 -142,71 -143,71 -143.5,71 -143.5,69.5228REAPPROVEDMulti-year study of particulate organic material (POM) sinking fluxes on the Beaufort shelfCASESIn the fall of 2002 and 2003 and in the summer of 2004 short-term (~24 h), free-drifting particle interceptor traps were deployed on 21 occasions in the Amundsen Gulf and on the Mackenzie shelf. The traps were deployed at depths between 10 and 150 m, depending on the water column depth (43 to 1280 m). Particulate material collected at each depth was assessed for: total and >5 µm chlorophyll a and phaeopigments, particulate inorganic carbon (PIC), particulate organic carbon and nitrogen (POC, PON), biogenic and lithogenic silica, fecal pellet abundances and carbon content, and cell taxonomy, abundances and biovolume. The concentrations of measured variables were used to calculate the sinking fluxes of pigments, POC, PON, silica, fecal pellets and cells for each depth. The data also allowed for the spatial classification of fluxes based on cell assemblages.This study was conducted to characterize the export of euphotic zone particulate organic matter (POM) on the Beaufort shelf in the Canadian Arctic. This data is required to enhance our understanding of inorganic nutrient and organic carbon cycling on Arctic shelves. The results of this study also facilitated the comparison of organic material sinking fluxes in ice-free and ice-covered areas.CompleteAs needed2007-09-102013-02-08Mackenzie Shelf, Amundsen Gulf, Franklin Bay(LAIQA)Juul-Pedersen, T., C. Michel, M. Gosselin (ms) Influence of the Mackenzie River plume on the sinking export of particulate material on the shelf. J. Mar. Syst. Juul-Pedersen, T., C. Michel, M. Gosselin (In prep.) Sinking export of particulate organic material from the euphotic zone in the Canadian Beaufort Sea.michel_gosselin@uqar.qc.caPublicNot Applicable2002-Sep-232004-Aug-970.0271.32-138.34-122.37Fisheries and Oceans CanadaChristine Michelmichelc@dfo-mpo.gc.ca204-984-8726501 University CrescentMBWinnipegR3T2N6CanadaGeographic locations:Amundsen Gulf; Geographic locations:Arctic; Geographic locations:Mackenzie Shelf; Natural sciences:Carbon fluxes; Natural sciences:Chlorophyll; Natural sciences:Export production; Natural sciences:Particulate organic carbon; Natural sciences:Phytoplankton; Natural sciences:Sedimentation rates; Natural sciences:TaxonomyChristine Michel:Principal Investigator; Michel Gosselin:Point of Contact; Thomas Juul-Pedersen:Originator-138.34,70.02 -137.34,70.02 -136.34,70.02 -135.34,70.02 -134.34,70.02 -133.34,70.02 -132.34,70.02 -131.34,70.02 -130.34,70.02 -129.34,70.02 -128.34,70.02 -127.34,70.02 -126.34,70.02 -125.34,70.02 -124.34,70.02 -123.34,70.02 -122.37,70.02 -122.37,71.32 -123.37,71.32 -124.37,71.32 -125.37,71.32 -126.37,71.32 -127.37,71.32 -128.37,71.32 -129.37,71.32 -130.37,71.32 -131.37,71.32 -132.37,71.32 -133.37,71.32 -134.37,71.32 -135.37,71.32 -136.37,71.32 -137.37,71.32 -138.34,71.32 -138.34,70.02229REAPPROVEDSinking export of particulate material under first-year sea ice during the winter-spring transition on the Mackenzie shelfCASESOn 16 occasions between 23 February and 20 June 2004, particle interceptor traps were deployed at 1, 15 and 25 m below first-year sea ice on the Mackenzie shelf. The under-ice traps were generally deployed for 6 to 8 days after which the particulate material collected at each depth was assessed for: total and >5 µm chlorophyll a and phaeopigments, particulate inorganic carbon (PIC), particulate organic carbon and nitrogen (POC, PON), biogenic and lithogenic silica and cell taxonomy, abundances and biovolume. The concentrations of the measured variables were used to calculate pigment, POC, PON and biogenic and lithogenic silica sinking fluxes for each depth.This study was conducted to assess under-ice sedimentation during the entire period of ice algal production on the Mackenzie shelf. The export of sea-ice particulate material is a key component of pelagic and benthic carbon cycling on Arctic shelves. Data is provided on depth-related changes in under-ice sinking fluxes (amount and composition) in order to better understand carbon cycling under variable sea-ice conditions.CompleteAs needed2007-09-102013-02-08Franklin Bay (LAIQA), Mackenzie ShelfJuul-Pedersen, T., C. Michel, M. Gosselin, and L. Seuthe (In press) Seasonal changes in the sinking export of particulate material, under first-year sea ice on the Mackenzie shelf (western Canadian Arctic). Mar. Ecol. Prog. Ser. Renaud, P. E., A. Riedel, C. Michel, M. Morata, M. Gosselin, T. Juul-Pedersen, and A. Chiuchiolo. 2007. Seasonal variation in benthic community oxygen demand: A response to an ice algal bloom in the Beaufort Sea, Canadian Arctic? J. Mar. Syst. 67: 1-12.michel_gosselin@uqar.qc.caPublicNot Applicable2004-Feb-232004-Jun-2070.0470.04-126.26-126.26Fisheries and Oceans CanadaChristine Michelmichelc@dfo-mpo.gc.ca204-984-8726501 University CrescentMBWinnipegR3T2N6CanadaGeographic locations:Arctic; Geographic locations:Mackenzie Shelf; Natural sciences:Carbon fluxes; Natural sciences:Chlorophyll; Natural sciences:Export production; Natural sciences:Ice algae; Natural sciences:Particulate inorganic carbon; Natural sciences:Sedimentation rates; Natural sciences:SilicaChristine Michel:Principal Investigator; Michel Gosselin:Point of Contact; Thomas Juul-Pedersen:Originator-126.26,70.04230REAPPROVEDBiochemical study of newly formed sea ice in the Canadian ArcticCASESNewly formed sea ice and underlying surface waters were sampled at 16 and 32 stations during the period of ice formation in the fall/winter of 2002 and 2003, respectively. The data was collected as part of the Canadian Arctic Shelf Exchange Study (CASES). Newly formed sea ice <7 cm thick was sampled with a strainer whereas congelation sea ice &#8805;7 cm thick was sampled with a manual ice corer (bottom 3 cm kept for analyses). In 2002 sea-ice samples were analyzed for: salinity, total and >5 µm chlorophyll a and phaeopigments and the abundances of bacteria. At each station in 2003, the newly formed sea ice and associated surface waters were analyzed for: salinity, pH, nutrients (NH4, NO2, NO3, Si(OH)4, and PO4), dissolved organic carbon (DOC), exopolymeric substances (EPS), total and >5 µm chlorophyll a and phaeopigments, bacterial abundances/biomass, autotrophic and heterotrophic protist abundances/biomass and cell taxonomy. In 2003, the enrichment of microorganisms, EPS and nutrients in the newly formed sea ice was assessed and NH4 regeneration rates were quantified. In addition, spatial trends in sea-ice species composition were also described for a subset of the 2003 data.This data was collected in order to improve our understanding of Arctic sea-ice ecology. Assessing the establishment of sea-ice microbial communities is important for quantifying sea-ice carbon and nutrient cycling and the contribution of sea-ice microbial communities to total Arctic productivity.CompleteAs needed2007-09-102013-02-08Amundsen Gulf, Mackenzie ShelfRiedel, A., C. Michel, M. Gosselin, and B. LeBlanc. 2007. Enrichment of nutrients, exopolymeric substances and microorganisms in newly formed sea ice on the Mackenzie shelf. Mar. Ecol. Prog. Ser. 342: 55-67. Ró&#380;a&#324;ska, M., M. Poulin, and M. Gosselin (ms) Protist entrapment in newly formed sea ice in the Canadian Beaufort Sea. J. Mar. Syst.michel_gosselin@uqar.qc.caPublicNot Applicable2002-Sep-262003-Nov-1969.4972.23-134.13-124.11Fisheries and Oceans CanadaChristine Michelmichelc@dfo-mpo.gc.ca204-984-8726501 University CrescentMBWinnipegR3T2N6CanadaGeographic locations:Arctic; Geographic locations:Mackenzie Shelf; Natural sciences:Bacteria; Natural sciences:Chlorophyll; Natural sciences:Dissolved organic carbon (DOC); Natural sciences:Ice; Natural sciences:Ice algae; Natural sciences:Nutrient cycling; Natural sciences:TaxonomyAndrea Riedel:Originator; Christine Michel:Principal Investigator; Magdalena Ró&#380;a&#324;ska:Collaborator; Michel Gosselin:Point of Contact; Michel Poulin:Collaborator-134.13,69.49 -133.13,69.49 -132.13,69.49 -131.13,69.49 -130.13,69.49 -129.13,69.49 -128.13,69.49 -127.13,69.49 -126.13,69.49 -125.13,69.49 -124.13,69.49 -124.11,69.49 -124.11,72.23 -125.11,72.23 -126.11,72.23 -127.11,72.23 -128.11,72.23 -129.11,72.23 -130.11,72.23 -131.11,72.23 -132.11,72.23 -133.11,72.23 -134.11,72.23 -134.13,72.23 -134.13,69.4911836REAPPROVEDSea Ice Image Analyses (GDB Polygon Format)BREAThe Canadian Ice Service of Environment Canada has produced Sea Ice Image Analysis Charts since 1974 and continuing to the present, however, the underlying spatial data used to generate the charts has only been available since approximately the year 2000. The primary difference between the spatial data and the Charts is that the various ice features are contained within attribute tables in a Geographic Information System (GIS) and therefore the display of the cartographic elements of the chart are absent. More information about the image analysis charts can be found here: http://www.ec.gc.ca/glaces-ice/default.asp?lang=En&n=B6C654BB-1#iac.The Sea Ice Image Analyses (GDB Format) represent the underlying spatial data that are used to create the flattened Sea Ice Image Analysis Charts. They provide timely ice information to the marine community operating in ice-encumbered waters in and around Canadian jurisdictional waters in order to enhance the safety and the efficiency of marine operations therein.In progressDaily2014-01-132015-02-19Beaufort Sea (CGNDB ID: LACKU)Sea Ice Image Analyses. Environment Canada, Canadian Ice Service Digital Archive. Ottawa. 2013.enviroinfo@ec.gc.caPublicNot Applicable2000-Jan-1Not Defined6776-160-110Canadian Ice ServiceSteve McCourtsteve.mccourt@ec.gc.ca+1-613-992-7049373 Sussex Dr. E-3OntarioOttawaK1A 0H3CanadaGeographic locations:Alaska; Geographic locations:Arctic; Geographic locations:Beaufort Sea; Geographic locations:Canada; Geographic locations:Northwest Territories; Health sciences and contaminants:Safety; Natural sciences:Geospatial data; Natural sciences:Ice; Natural sciences:Image analysis; Natural sciences:Sea iceCanadian Coast Guard Dept. of Fisheries and Oceans Canada:Collaborator; Government of Canada:Principal Investigator; Langois, Darlene:Originator-160,67 -159,67 -158,67 -157,67 -156,67 -155,67 -154,67 -153,67 -152,67 -151,67 -150,67 -149,67 -148,67 -147,67 -146,67 -145,67 -144,67 -143,67 -142,67 -141,67 -140,67 -139,67 -138,67 -137,67 -136,67 -135,67 -134,67 -133,67 -132,67 -131,67 -130,67 -129,67 -128,67 -127,67 -126,67 -125,67 -124,67 -123,67 -122,67 -121,67 -120,67 -119,67 -118,67 -117,67 -116,67 -115,67 -114,67 -113,67 -112,67 -111,67 -110,67 -110,76 -111,76 -112,76 -113,76 -114,76 -115,76 -116,76 -117,76 -118,76 -119,76 -120,76 -121,76 -122,76 -123,76 -124,76 -125,76 -126,76 -127,76 -128,76 -129,76 -130,76 -131,76 -132,76 -133,76 -134,76 -135,76 -136,76 -137,76 -138,76 -139,76 -140,76 -141,76 -142,76 -143,76 -144,76 -145,76 -146,76 -147,76 -148,76 -149,76 -150,76 -151,76 -152,76 -153,76 -154,76 -155,76 -156,76 -157,76 -158,76 -159,76 -160,76 -160,67232REAPPROVEDSeasonal study of nutrients and organic matter in first-year sea ice on the Mackenzie shelfCASESFirst-year sea ice was sampled on 36 occasions near the overwintering site of the CCGS Amundsen during the Canadian Arctic Shelf Exchange Study (CASES). Sea-ice and associated surface water samples were taken every 3 to 5 days between 24 February and 20 June 2004. Surface waters and the bottom 3-5 cm of ice cores were routinely analyzed for: salinity, pH, nutrients (NH4, NO2, NO3, Si(OH)4, and PO4), dissolved organic carbon and nitrogen (DOC, DON), exopolymeric substances (EPS), particulate inorganic carbon (PIC), particulate organic carbon and nitrogen (POC, PON), total and >5 µm chlorophyll a and phaeopigments, bacterial abundances/biomass, protist (excluding diatoms) abundances/biomass and ice algal/phytoplankton taxonomy. This data set also includes vertical and spatial profiles of ice algal distribution as well as measurements of sea-ice primary production, bacterivory and sea-ice algal and bacterial sinking velocities.This study was conducted to assess sea-ice biochemical variables and processes during the entire winter-spring transition on an Arctic shelf. The data will contribute to our understanding of the effects of climate change associated with first-year sea ice and the productive Arctic shelves.CompleteAs needed2007-09-102014-11-18Franklin Bay (LAIQA), Mackenzie ShelfRiedel (2006) Thèse de doctorate (PhD) Université du Québec à Rimouski Riedel et al. (ms) Grazing of large-sized bacteria by sea-ice heterotrophic protists on the Mackenzie shelf during the winter-spring transition. AME Riedel et al. (2006) Seasonal study of sea-ice exopolymeric substances (EPS) on the Mackenzie shelf: implications for the transport of sea-ice bacteria and algae. AME 45:195-206michel_gosselin@uqar.qc.caPublicNot Applicable2004-Feb-242004-Jun-2070.0470.04-126.26-126.26Institut des sciences de la mer (ISMER)Michel Gosselinmichel_gosselin@uqar.ca1-418-723-1986 ext. 1761310, allee des UrsulinesPQRimouskiG5L 3ACanadaGeographic locations:Arctic; Geographic locations:Mackenzie Shelf; Natural sciences:Bacteria; Natural sciences:Chlorophyll; Natural sciences:Dissolved organic carbon (DOC); Natural sciences:Ice; Natural sciences:Ice algae; Natural sciences:Marine ecology; Natural sciences:TaxonomyAndrea Riedel:Collaborator; Christine Michel:Collaborator; Magdalena Ró&#380;a&#324;ska:Originator; Michel Gosselin:Principal Investigator; Michel Poulin:Collaborator-126.26,70.04246REAPPROVEDCarbon monoxide (CO ) in the southeastern Beaufort SeaCASESData type: CO in marine boundary layer Method: RGA3 reduction gas analyzer Data type: CO in surface water Method: Bucket sample Data type: CO depth profile Method: CDT rosette Data type: CO photoproduction in the water column Method: Laboratory photochemical incubation combined with photochemical-optical modeling Date type: Microbial CO consumption in the water column Method: Laboratory incubation in the darkTo let the user community to be aware of the existence of CO data newly collected from the atmosphere, open water, and sea ice over/in the Arctic Ocean. The dataset displays the type of data, location and time of the data collected, and the methods used. The specific data are not archived since most of them have not been published in refereed journals.CompleteAs needed2007-09-102017-12-21Southeastern Beaufort SeaHuixiang Xie, Simon Bélanger, and Serge Demers. Biogeochemical cycling of carbon monoxide in the southeastern Beaufort Sea. In the advanced stage of preparation. Huixiang Xie, and Michel Gosselin, 2005. Photoproduction of carbon monoxide in first-year sea ice in Franklin Bay, southeastern Beaufort Sea, Geophysical Research Letters, 32, L12606, doi:10.1029/2005GL022803.serge_demers@uqar.qc.caLimitedNot Applicable2003-Sep-282004-Jun-156972-140-120UQAR-ISMERHuixiang Xiehuixiang_xie@uqar.ca(418) 723-1986(418) 723-1986300 allee des UrsulinesQCRimouskiG5L3A1CanadaGeographic locations:Beaufort Sea; Natural sciences:Biogeochemistry; Natural sciences:Carbon; Natural sciences:Ice; Natural sciences:PhotosynthesisHuixiang Xie, ISMER/UQAR:Originator; Huixiang Xie, ISMER/UQAR:Principal Investigator; Manuel Norroy, Université de Rennes 1 (France):Collaborator; Serge Demers:Point of Contact; Simon Bélanger:Collaborator; Tao Lou, ISMER/UQAR and OUC:Collaborator-140,72 -139,72 -138,72 -137,72 -136,72 -135,72 -134,72 -133,72 -132,72 -131,72 -130,72 -129,72 -128,72 -127,72 -126,72 -125,72 -124,72 -123,72 -122,72 -121,72 -120,72 -120,71 -120,70 -120,69 -121,69 -122,69 -123,69 -124,69 -125,69 -126,69 -127,69 -128,69 -129,69 -130,69 -131,69 -132,69 -133,69 -134,69 -135,69 -136,69 -137,69 -138,69 -139,69 -140,69 -140,70 -140,71 -140,72247REAPPROVEDViral abundance in Arctic winter sea-ice brinesCASES; OtherTo examine the above hypothesis, we determined viral and bacterial concentrations in select winter sea-ice horizons using epifluorescence microscopy. Viral concentrations ranged from 1.6 to 82 x 10^6 per ml of brine volume of the ice, with highest values in brines from coldest (-24 to -31C) ice horizons. Calculated virus-bacteria contact rates in underlying -1C seawater were similar to those in brines of -11C ice but up to 600 times lower than those in ice brines at or below -24C. We then incubated native bacterial and viral assemblages from winter sea ice for 8 days in brine at a temperature (-12C) and salinity (~160 psu) near expected in situ values, monitoring their concentrations microscopically. While different cores yielded different results, consistent with known spatial heterogeneity in sea ice, these experiments provided unambiguous evidence for viral persistence and production, as well as for bacterial growth, in -12C brine.We describe a model based on diffusion theory and the temperature-dependent mechanism of brine concentration in sea ice to argue that, if viruses partition with bacteria into sea-ice brine inclusions, contact rates between the two can be higher in winter sea ice than in seawater, increasing the probability of infection and possible virus production.PlannedAs needed2007-09-102013-02-08Franklin Bay, LAIQAWells, L.E. and J.W. Deming, 2006. Modeled and measured dynamics of viruses in Arctic winter sea-ice brines. Environ. Microbiol. 8(6):1115-1121.http://www.ocean.washington.edu/people/faculty/deming/PublicNot Applicable2004-Feb-292004-Mar-217070-126.3-126.3University of WashingtonJody Demingjdeming@u.washington.edu206-685-1626School of Oceanography, Box 357940WASeattle98195USAGeographic locations:Franklin Bay; Natural sciences:Bacteria; Natural sciences:Brine; Natural sciences:Extreme habitats; Natural sciences:Sea ice; Natural sciences:Temperature; Natural sciences:VirusJody Deming:Principal Investigator; Lloyd Wells:Originator-126.3,70248REAPPROVEDArchaea in particle-rich waters of the Beaufort Shelf and Franklin Bay, Canadian ArcticCASES; OtherAlthough the regional distribution of bacterioplankton was best explained by salinity (r = -0.89, n = 28, p < 0.001) and indicators of primary production (chlorophyll a [Chl a], total organic carbon, and the ratio of Chl a to particulate organic carbon [Chl a: POC]0, that of Archaea instead reflected measures of particulate matter, specifically microscopically determined particle concentration (r = 0.85, n = 30, p < 0.001), suspended particulate matter, POC, particulate organic nitrogen (PON), and the beam attenuation coefficient. Moreover, when compared with similarly deep particle-poor waters, nepheloid layers were significantly enriched in Archaea (mean concentration of 6.00 x 10^4 per ml [15.5% of bacterioplankton] vs. 1.70 x 10^4 per ml [3.6%}; p < 0.05), but not total bacterioplankton. The relationship between Archaea and particles, the dominance of the Mackenzie River as the regional particle source, the detection of highest archaeal concentrations (11.5-14.4 x 10^4 per ml) in the river, and the highly significant correlation (r = 0.097, n = 12, p < 0.001) between Archaea in particle-rich waters and PON (the river providing the upper end member) suggest that many of these Archaea derive from the river.We used DAPI staining and fluorescent in situ hybridization to examine total bacterioplankton and archaeal distributions in surface waters and in deeper nepheloid layers and particle-poor waters across the Beaufort Shelf of the Canadian Arctic, including the Mackenzie River and Kugmallit Bay, as well as more distant Franklin Bay.PlannedAs needed2007-09-102013-02-08Beaufort Sea, Franklin Bay (LAIQA)Wells, L.E., M. Cordray, S. Bowerman, L. Miller, W.F. Vincent, and J.W. Deming, 2006. Archaea in particle-rich waters of the Beaufort Shelf and Franklin Bay, Canadian Arctic: Clues to an allochthonous origin? Limnol. Oceanogr. 51:47-59.http://www.ocean.washington.edu/people/faculty/deming/PublicNot Applicable2002-Sep-232002-Oct-126971.5-135-126University of WashingtonJody Demingjdeming@u.washington.edu206-685-1626School of Oceanography, Box 357940WASeattle98195USAGeographic locations:Beaufort Sea; Geographic locations:Franklin Bay; Natural sciences:Archaea; Natural sciences:Bacteria; Natural sciences:Chlorophyll; Natural sciences:Nepheloid layer; Natural sciences:Particulate organic carbon; Natural sciences:RiverJody Deming:Principal Investigator; Lloyd Wells:Originator-135,69 -134,69 -133,69 -132,69 -131,69 -130,69 -129,69 -128,69 -127,69 -126,69 -126,71.5 -127,71.5 -128,71.5 -129,71.5 -130,71.5 -131,71.5 -132,71.5 -133,71.5 -134,71.5 -135,71.5 -135,69249REAPPROVEDBiological data of marine Arctic fish in Franklin BayArcticNet; CASESOlder juvenile and adult fish are sampled mostly with gillnets, sometimes with handlines. Sampling can be through holes dug in the ice for scientific purposes or from shore with the assistance of local guides. Fish are frozen as soon as possible and transported to the DFO laboratory in Mont-Joli for further analysis.Juvenile and adult marine fish are collected to be characterized as to age, size, condition, sex, maturity and gut content. The objective is to describe the basic biological characteristics (e.g. growth, feeding) of various marine forage fish species in the Canadian Arctic. This database is essential to assess how key forage fish (e.g. Arctic cod for marine mammals and seabirds, Greenland cod for humans) react to their changing environment.In progressAs needed2007-09-102013-09-02Franklin Bay, NWT (LAIQA) and Beaufort SeaGagné, J. Biological data of marine Arctic fish in Franklin Bay. Unpublished data.gagneja@dfo-mpo.gc.caPublicNot Applicable2002-Jul-12007-Apr-3041.584-141-52Fisheries and OceansJacques Gagnegagneja@dfo-mpo.gc.ca(418) 775-0672P.O. Box 1000QCMont-JoliG5H3Z4CanadaGeographic locations:Amundsen Gulf; Geographic locations:Franklin Bay; Natural sciences:Arctic cod; Natural sciences:Fishes; Natural sciences:Food webCASES field personnel.:Collaborator; Jacques A. Gagne:Originator; Jacques A. Gagne:Principal Investigator-141,41.5 -140,41.5 -139,41.5 -138,41.5 -137,41.5 -136,41.5 -135,41.5 -134,41.5 -133,41.5 -132,41.5 -131,41.5 -130,41.5 -129,41.5 -128,41.5 -127,41.5 -126,41.5 -125,41.5 -124,41.5 -123,41.5 -122,41.5 -121,41.5 -120,41.5 -119,41.5 -118,41.5 -117,41.5 -116,41.5 -115,41.5 -114,41.5 -113,41.5 -112,41.5 -111,41.5 -110,41.5 -109,41.5 -108,41.5 -107,41.5 -106,41.5 -105,41.5 -104,41.5 -103,41.5 -102,41.5 -101,41.5 -100,41.5 -99,41.5 -98,41.5 -97,41.5 -96,41.5 -95,41.5 -94,41.5 -93,41.5 -92,41.5 -91,41.5 -90,41.5 -89,41.5 -88,41.5 -87,41.5 -86,41.5 -85,41.5 -84,41.5 -83,41.5 -82,41.5 -81,41.5 -80,41.5 -79,41.5 -78,41.5 -77,41.5 -76,41.5 -75,41.5 -74,41.5 -73,41.5 -72,41.5 -71,41.5 -70,41.5 -69,41.5 -68,41.5 -67,41.5 -66,41.5 -65,41.5 -64,41.5 -63,41.5 -62,41.5 -61,41.5 -60,41.5 -59,41.5 -58,41.5 -57,41.5 -56,41.5 -55,41.5 -54,41.5 -53,41.5 -52,41.5 -52,84 -53,84 -54,84 -55,84 -56,84 -57,84 -58,84 -59,84 -60,84 -61,84 -62,84 -63,84 -64,84 -65,84 -66,84 -67,84 -68,84 -69,84 -70,84 -71,84 -72,84 -73,84 -74,84 -75,84 -76,84 -77,84 -78,84 -79,84 -80,84 -81,84 -82,84 -83,84 -84,84 -85,84 -86,84 -87,84 -88,84 -89,84 -90,84 -91,84 -92,84 -93,84 -94,84 -95,84 -96,84 -97,84 -98,84 -99,84 -100,84 -101,84 -102,84 -103,84 -104,84 -105,84 -106,84 -107,84 -108,84 -109,84 -110,84 -111,84 -112,84 -113,84 -114,84 -115,84 -116,84 -117,84 -118,84 -119,84 -120,84 -121,84 -122,84 -123,84 -124,84 -125,84 -126,84 -127,84 -128,84 -129,84 -130,84 -131,84 -132,84 -133,84 -134,84 -135,84 -136,84 -137,84 -138,84 -139,84 -140,84 -141,84 -141,41.5250REAPPROVEDSea ice inorganic carbon systemCASESTotal inorganic carbon, alkalinity, total organic carbon, and salinity measured in melted ice core sections. Full core profiles with 10-cm resolution taken weekly at Takatuk. Partial pressure of CO2 measured 2-3 times per week through peepers at three depths at each of 6 locations, 3 at Takatuk and 3 at Bruney Island. Total inorganic carbon measured coulometrically, alkalinity by potentiometric titration, organic carbon by high temperature catalytic combustion, and salinity by diffraction. pCO2 measured by gas chromatograph.Understanding of geochemical processes driving ice-atmosphere and ice-water carbon fluxes.PlannedAs needed2007-09-112017-12-21Franklin Bay, NWT (LAIQA)L.A. Miller, N. Sutherland, O. Owens, A. Mucci, CASES sea carbon data set. December 2003 - May 2004, CCGS Amundsen.Lisa.Miller@dfo-mpo.gc.caLimitedNot Applicable2003-Nov-302004-May-307070-126-126DFOLisa Millerlisa.miller@dfo-mpo.gc.ca250 363 6673Institute of Ocean Sciences, P.O. Box 6000BCSidneyV8L4B2CanadaGeographic locations:Franklin Bay; Natural sciences:Acoustic; Natural sciences:Carbon dioxide; Natural sciences:Dissolved inorganic carbon (DIC); Natural sciences:Organic carbon; Natural sciences:Sea iceLisa Miller:Originator; Lisa Miller:Principal Investigator-126,70251REAPPROVEDWater column organic carbon dataCASESSamples collected by rosette or hand-deployed niskin, directly transferred into acid-washed and backed glass vials with teflon-lined silicone septa caps, and frozen at -20 or -80 C. Analyses conducted by high-temperature catalytic combustion and calibrated again standards provided by the University of Miami. In 2002, all samples were total organic carbon (TOC), and in 2003-04, all samples were dissolved organc carbon (DOC, filtered through combusted GFF), and TOC was also collected at full stations at in surface waters at the overwintering site.Determination of the total carbon budget and fluxes in the Canadian Beaufort Sea.CompleteAs needed2007-09-112017-12-21Beaufort SeaL.A. Miller and N. Sutherland, CASES organic carbon data set, September 2002-August 2004, CCGS Radisson, CCGS Amundsen.Lisa.Miller@dfo-mpo.gc.caLimitedNot Applicable2002-Sep-222004-Aug-186972-140-120DFOLisa Millerlisa.miller@dfo-mpo.gc.ca250 363 6673Institute of Ocean Sciences, P.O. Box 6000BCSidneyV8L4B2CanadaGeographic locations:Beaufort Sea; Geographic locations:Franklin Bay; Natural sciences:Biogeochemistry; Natural sciences:Carbon fluxes; Natural sciences:Oceanography; Natural sciences:Organic carbon; Natural sciences:Water chemistryLisa Miller:Originator; Lisa Miller:Principal Investigator-140,72 -139,72 -138,72 -137,72 -136,72 -135,72 -134,72 -133,72 -132,72 -131,72 -130,72 -129,72 -128,72 -127,72 -126,72 -125,72 -124,72 -123,72 -122,72 -121,72 -120,72 -120,71 -120,70 -120,69 -121,69 -122,69 -123,69 -124,69 -125,69 -126,69 -127,69 -128,69 -129,69 -130,69 -131,69 -132,69 -133,69 -134,69 -135,69 -136,69 -137,69 -138,69 -139,69 -140,69 -140,70 -140,71 -140,72