Arctic Ocean 2016 - Dissolved Gaseous Elemental Mercury in Surface Seawater

This dataset contains data collected during the Canadian-Swedish expedition Arctic Ocean 2016. The research cruise took place August through September 2016, using the icebreaker Oden. For ship data from the cruise, as well as graphics and files describing the route, see https://snd.gu.se/sv/catalogue/study/ecds0221 For descriptions of Work Packages and research conducted during the cruise, see the SWEDARCTIC Arctic Ocean 2016 Expedition Report: http://urn.kb.se/resolve?urn=urn:nbn:se:polar:diva-3475 Additional information on the expedition, including links to publications, is available at http://www.polarforskningsportalen.se/en/arctic/expeditions/arctic-ocean-2016 Work Package: Heavy Metals Road Map Project Dissolved gaseous mercury was continously measured (with 5 min resolution) in surface seawater along the Arctic Ocean 2016 cruise track. The bow water system was used to pump seawater into the wetlab where the water was purged with clean air, releasing dissolved gaseous elemental mercury (DGM) into the outgoing air. An opposite flow extractor was used for the purging and a Tekran 2537A cold vapor atomic flourescence spectrometer was used for the detection of elemental mercury in the outgoing air. The data can be used to calculate the flux of elemental mercury from sea surfaces in the Arctic and to monitor the concentrations of mercury in the Arctic marine environment. Data include: Dissolved gaseous elemental mercury in surface seawater本数据集收录了2016年加瑞联合北极科考航次（Canadian-Swedish Arctic Ocean 2016 Expedition）所采集的全部观测数据。本次科考任务于2016年8月至9月期间开展，使用破冰船"奥登号（Oden）"作为科考平台。 如需获取本次航次的船舶运行数据、航线相关图表及配套文档，请访问链接：https://snd.gu.se/sv/catalogue/study/ecds0221 如需了解本次航次的工作包（Work Package）设置及开展的研究内容，请参阅《SWEDARCTIC 2016年北极科考报告》，链接为：http://urn.kb.se/resolve?urn=urn:nbn:se:polar:diva-3475 更多关于本次科考的相关信息（含已发表文献的链接）可通过以下网址获取：http://www.polarforskningsportalen.se/en/arctic/expeditions/arctic-ocean-2016 工作包：重金属路线图项目（Heavy Metals Road Map Project） 本次研究在2016年北极科考航次的整条航线中，以5分钟的时间分辨率连续监测表层海水中的溶解气态汞含量。实验采用船艏取水系统抽取海水至湿实验室，通过清洁空气吹扫海水，将溶解气态单质汞（Dissolved Gaseous Elemental Mercury，缩写DGM）释放至吹扫气流中。吹扫过程采用逆流萃取装置，使用Tekran 2537A型冷蒸气原子荧光光谱仪对吹扫气流中的单质汞进行检测。本数据集可用于计算北极海域海-气界面的单质汞通量，并监测北极海洋环境中的汞浓度水平。 数据集包含以下内容： 表层海水中的溶解气态单质汞