Studies of Trapped Gases in Firn and Ice from Antarctic DeepIce Cores

南极深冰芯的冰和冰中截留气体的研究

• 批准号: 9117969
• 负责人: Michael Bender
• 金额: $ 50.52万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-01 至 1997-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9117969&HistoricalAwards=false
• 关键词: Studies; Trapped; Gases; Firn; Ice

This award is for support of a project to study the concentration and isotopic composition of O2, N2, and Ar in ice core trapped gas samples, and to begin a program of CH4 measurements. The transport of air in the firn, and its implications for isotopic fractionation during the trapping of gases and the chronology of ice core trapped gas samples will be studied. Samples from the Vostok, Byrd Station, and McMurdo Dome ice cores will be studied. Results from this study will lead to a better understanding of the sequence of events associated with glaciations and deglaciations, estimates of time leads and lags between these events, and the implications of this information for mechanisms of Pleistocene climate change. This work will also contribute to efforts to understand how man has changed greenhouse gas concentrations in the atmosphere during the last 200 years.

这个奖项是为了支持一个项目，研究浓度 冰芯气中O2、N2和Ar的同位素组成 样品，并开始开始甲烷测量计划。 运输 空气在雪中的含量及其对同位素分馏的影响 在捕获气体的过程中， 将对气体样品进行研究。 东方号的样本伯德 站，和麦克默多圆顶冰芯将进行研究。 结果 这项研究将有助于更好地了解 与冰川和冰消相关的事件，估计 这些事件之间的时间领先和滞后，以及 更新世气候变化机制的信息。 这项工作也将有助于努力了解人类如何 大气中温室气体浓度的变化 过去200年