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

本项目是对北极海水浓度的分析 溶解的氦氖氩氪氙 以来 海冰的形成涉及氦的清除， 排斥其他惰性气体，氦/氖比， 例如，可用于推断冻结/融化/再冻结循环 海冰。 氚数据的添加允许 确定深水样品的年龄，在某种意义上说， 样品中溶解的气体最后一次进入 与大气层保持平衡。 这项技术将应用于 在中尺度涡旋中的水的下降流。 实地工作将在MIZEX 87期间进行， 挪威的国际合作海洋学项目， 格林兰海将使用挪威船只M/S HAAKON MOSBY。 支持该项目的水文数据将由其他 船上的调查人员。

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.