A Study of Dissolved Gas Anomaly as a Result of Ice Formation Under Winter Arctic Conditions

这个项目是对北极海水中溶解的氦、氖、氩、氪和氙的浓度进行分析。由于海冰的形成涉及到氦的清除和其他稀有气体的排斥，例如，氦/氖比率可以用来推断海冰的冻结/融化/再冻结循环。加上氚的数据，就可以确定深水样品的年龄，从某种意义上说，给出了样品中溶解气体上一次与大气平衡的时间。该技术将应用于中尺度涡旋中水的下移。实地工作将在MIZEX 87期间进行，这是一个在挪威和格陵兰海开展的国际海洋学合作项目。挪威的HAAKON MOSBY号将被使用。支持该项目的水文测量数据将由船上的其他调查人员采集。

This project is an analysis of arctic sea water for the concentration of dissolved helium, neon, argon, krypton, and xenon. Since the formation of sea ice involves the scavenging of helium and the rejection of the other noble gases, the helium/neon ratio, for example, may be used to infer the freezing/melting/refreezing cycles of sea ice. The addition of the tritium data allows the determinationof the age of a deep water sample, in the sense of giving a time sincethe dissolved gases in the sample had last been in equilibrium with the atmosphere. This technique will be applied to the downwelling of water in mesoscale eddies. The field work will be carried out during MIZEX 87, an internationallycooperative oceanographic program in the Norwegian and Greeland Seas. The M/S HAAKON MOSBY, a Norwegian ship, will be used. Hydrographic data to support this project will be taken by other investigators on board the ship.