Chlorofluoromethane (Freon) Studies in the Filchner III Experiment

这个项目是对两种氯氟甲烷(氟利昂)在威德尔海南部的分布进行分析。这些样本是作为西德研究船Polarstein的Filchner III探险队的一部分由首席调查员获得的。对水柱中随时间变化的人为示踪剂氟利昂的分析是对冰架水(一种在菲尔奇纳冰架下形成的一种特殊类型的水)循环的化学和水文合作研究的一部分。将跟踪这种水类型通过菲尔奇纳凹陷的流出，它随后在大陆斜坡上的演变，以及它对威德尔海深处的渗透，并将所得数据用于研究威德尔海深水团和底水团的形成速度和输送路径。在巡航中收集的空气样本将进行氟里昂浓度分析，以确定表层海水和上层大气之间的平衡程度。

This project is an analysis of the distribution of two species of chlorofluoromethanes (freons) in the southern Weddell Sea. The samples were obtained by the principal investigator as part of the Filchner III Expedition of the West German research vessel POLARSTERN. The analysis of freons, a time-dependent, anthropogenic tracer in the water column, is part of a collaborative chemical and hydrographical study of the circulation of Ice Shelf Water (a particular water type formed under the Filchner Ice Shelf). The outlow of this water type through the Filchner Depression, its subsequent evolution on the continental slope, and its penetration into the deep Weddell Sea will be followed, and the derived data used to study formation rates and transport paths of deep and bottom water masses in the Weddell Sea. Air samples that were collected on the cruise will be analyzed for freon concentrations in order to determine the extent of equilibrium between the surface sea water and the overlying atmosphere.