23a79e03-d219-40d9-817c-d48071655279 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 2022-04-08T13:00:28 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=10550 Arctic-SOLAS 2008 atmospheric DMS, SO2, aerosol sulfate and MSA 2013-06-06 Ann-Lise Norman Ofelia Rempillo Alison Michelle Seguin A.-L. Norman, O. Rempillo, A. M. Seguin (unpublished data) The database consists of hourly atmospheric DMS concentration, daily SO2 and total sulfate concentrations and three-day concentrations of size segregated aerosol sulfate. Samples were taken on the top of the navigation bridge of the CCGS Amundsen as it cruised along Baffin Bay and Lancaster Sound. Hourly samples of dimethyl sulfide was obtained using a customized DMS sampler. Samples were analyzed using a gas chromatograph fitted with a sulfur chemiluminesence detector (GC-SCD) to obtain atmospheric DMS concentrations. SO2 and total aerosol samples were obtained daily using a high volume sampler fitted with a quartz microfiber filter and K2CO3 treated cellulouse filter. Size segragated aerosol samples were obtained using a highvolume sampler fitted with slotted quartz filters on a 5 stage cascade impactor run for three days each sample. Concentrations of SO2, sulfate and MSA as well as other ions from the filter papers were obtained using ion chromatography. Delta34S values of SO2 and sulfate were obtained using a continuous flow isotope ratio mass spectrometer. Delta34S is reported based on the Vienna Canyon Diablo Troillite (V-CDT) international standard. The CLAW hypothesis states that dimethylsulfide (DMS) could produce a climate feedback mechanism by the production of sulfate that could form new aerosols and alter cloud albedo. The melting of sea ice and opening of waters in the Arctic could potentially release more DMS in the atmosphere intensifying these effects. This study aims to understand the effects of DMS and its oxidation products to aerosol formation and growth. The use of stable isotope techniques would identify the amount of SO2 and sulfate that originated from DMS oxidation. These would serve as inputs to oxidation models to better understand DMS oxidation mechanism in Arctic conditions. Also, this would be used to ascertain whether DMS emissions in the Arctic atmosphere could result to new aerosol formation. 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/23a79e03-d219-40d9-817c-d48071655279/attachments/map.png Air Arctic Atmospheric composition Baffin Bay Biogeochemistry Dimethylsulfide (DMS) Multidisciplinary Northwest Passage Stable isotope analyses Sulphur 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 -95.00 -60.00 62.00 77.00 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2008-09-04 2008-10-12 Summary: Not Applicable Research Program(s): IPY. For further information: alnorman@ucalgary.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 https://www.polardata.ca/pdcsearch/PDC_Metadata_Data_Download.ccin?action=downloadPDCData&ccin_ref_number=10550&fileLoc=/pdc/ipy/10550/CCIN10550_20130506_Arctic%20SOLAS%202008%20QA.xls WWW:DOWNLOAD-1.0-http--download data 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