61f44738-6ac4-4617-a70c-9ea065e448f1 eng; CAN Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca 2022-04-08T13:00:39 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=11717 Total Mercury and Methylmercury Profiles in Multiyear Sea Ice in the Southwestern Beaufort Sea 2016-04-05 Dr. Feiyue Wang Sarah Beattie Amanda Chaulk Debbie Armstrong Dr. Michel Gosselin Beattie S., Armstrong D., Chaulk A., Comte J., Gosselin M., and Wang F. 2014. Total and methylated mercury in Arctic multiyear sea ice. Environmental Science & Technology 48: 5575-5582. Replicate cores spanning the entire thickness of the floe were taken from a single sampling site on a multi-year sea ice floe in the southwestern Beaufort Sea in August 2011 as part of the ArcticNet 2011 cruise of the CCGS Amundsen. Quantification of total mercury (THg), methylmercury (MeHg), Chlorophyll a, dissolved organic carbon (DOC) and delta 18O was performed on separate cores, and temperature and salinity profiles were recorded. THg was analyzed via CVAFS on board the Amundsen in the Portable In-situ Lab for Mercury Speciation (PILMS), while MeHg was analyzed via GC-CVAFS in the Ultra-Clean Trace Elements Lab (UCTEL) at the University of Manitoba. Chlorophyll a concentrations were analyzed onboard the Amundsen via fluorimetry, and salinity was recorded using a Hach Sension probe. DOC was analyzed by Dr. Michel Gosselin's lab at the Université du Québec à Rimouski via a high-temperature combustion Shimadzu TOC-5000A autoanalyzer. Delta 18O analysis was performed by G.G. Hatch Isotope Laboratories, University of Ottawa, Canada. Samples and standards (calibrated against several samples of Vienna - SMOW) were flushed with a gas mixture of 2 % CO2 in helium off-line, equilibrated at 21°C for 5 d, then analyzed using the Gasbench + DeltaPlus XP isotope ratio mass spectrometer (ThermoFinnigan, Germany). Currently there is a lack of data on the mercury and methylmercury content of Arctic multiyear sea ice. Cores were taken to meet the following objectives; 1) To investigate the main variables governing total mercury distribution within multiyear sea ice; 2) To investigate the potential of mercury transformation within multiyear sea ice; and 3) To estimate the flux of mercury into the Arctic Ocean system upon complete multiyear sea ice ablation. This data will be compared to recent data on mercury concentrations in first-year Arctic sea ice. Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://metadata.arice-h2020.eu/geonetwork/srv/api/records/61f44738-6ac4-4617-a70c-9ea065e448f1/attachments/map.png Beaufort Sea Biogeochemistry Dissolved organic carbon (DOC) Mercury fluxes Oxygen isotopes Sea ice Polar Data Catalogue Thesaurus (Canada) 2021-06-02 Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://www.polardata.ca/pdcinput/public/keywordlibrary Southwestern Beaufort Sea Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse eng; CAN environment -128.16 -128.16 74 74 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2011-08-16 2011-08-16 Summary: Not Applicable Research Program(s): ArcticNet. For further information: Feiyue.Wang@ad.umanitoba.ca false Digital file 1.0 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca This metadata was generated from the PDC metadata database at 2021-06-02 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca