14afca89-79ff-45f1-b7f1-e31da8aad959 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 2022-04-08T13:00:43 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=904 Arctic SOLAS 2007 DMS data 2011-07-07 Maurice Levasseur Myriam Luce Michael Scarratt Sonia Michaud M. Luce, M. Levasseur, M. Scarratt, S. Michaud, R. P. Kiene, C. Lovejoy, M. Gosselin. Fall distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum (unpublished data) DMSP and DMS water concentrations were determine at fixed depths and at selected stations (ArcticNet stations) along a transect beginning in the North Water Polynya, going through the Lancaster Sound and the Northwest Passage, and terminating in the Beaufort Sea. During transit time, near surface DMS measurements were conducted every 2 hours from the pumping system of the CCGS Amundsen. In all cases, DMSP and DMS measurements were done following the methods of Kiene and Slezak 2006 (Limnol. Oceanogr.: Methods 4: 80-95). At selected stations, DMSP and DMS microbial cycling was determined during onboard incubations following the 35S-DMSP protocol (Merzouk et al. 2006, Deep Sea Res. 53:2370-2383). Global surface temperatures are rising at an unprecedented rate, and the patterns of change during recent decades strongly point to increased man-made emissions of greenhouse gases as the dominant factor. The Arctic is particularly sensitive to this warming. One spectacular effect of this has been a rapid loss of Arctic sea ice in recent years, with major reductions in both its extent and thickness. Another example is an anticipated increase in the flow of water from the Pacific to the Atlantic through the Canadian Arctic archipelago, which will affect water circulation, ice conditions and the marine microbial food chain. Biological processes in the world¿s oceans play an important role in the cycles of various gases which influence climate such as nitrous oxide (N2O), volatile organic compounds (VOCs), and dimethylsulfide (DMS). These gases affect the climate in various ways, either as greenhouse gases, or as sources of cooling aerosols. It is the goal of the Arctic SOLAS (Surface Ocean - Lower Atmosphere Study) program to explore the interactions between sea ice, water circulation, marine microbiological activity and emissions of these gases from the ocean to the Arctic atmosphere. 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/14afca89-79ff-45f1-b7f1-e31da8aad959/attachments/map.png Bacteria Beaufort Sea Canadian Arctic Archipelago Dimethylsulfide (DMS) Dimethylsulfoniopropionate (DMSP) Food web North Water Polynya Phytoplankton Sulphur Water column 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 High Canadian Arctic Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse eng; CAN environment -138 -70 70 77 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2007-09-27 2007-11-08 Summary: Not Applicable Research Program(s): IPY. For further information: maurice.levasseur@bio.ulaval.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