C02/Air Ratios and 13CO2 in Ice Cores

冰芯中的 CO2/空气比率和 13CO2

• 批准号: 8821973
• 负责人: Martin Wahlen
• 金额: $ 25万
• 依托单位: New York State Department of Health and Health Research Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-01 至 1991-03-05
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8821973&HistoricalAwards=false
• 关键词: C02; Air; Ratios; 13CO2; Ice

This award supports one aspect of the second Greenland Ice Sheet Project (GISP II). The GISP core from Summit, Greenland, will produce very old ice and paleoclimatic information with excellent time resolution, due to the prevailing accumulation rate and mean annual temperature. This effort will establish in this core a high resolution CO2 record, which is necessary to ultimately understand the natural disturbance in the carbon cycle, and the relationship and interaction between CO2 and climate. This record, when compared to temperature records (and particulate/chemistry/cosmogenic isotope records) will yield information on the cause/effect relationship of CO2 and climate, and on the mechanisms to produce atmospheric CO2 variations over different time scales. If the rapid variations in the last glacial could be confirmed, important information would be obtained on the climatic sequence of the anthropogenic alterations to the earth's trace gas involving in recent times.

该奖项支持第二个格陵兰冰盖项目(GISPII)的一个方面。来自格陵兰岛顶峰的GISP核心将产生非常古老的冰和具有良好时间分辨率的古气候信息，这是因为当时的积累速度和年平均温度。这项工作将在这个核心建立一个高分辨率的二氧化碳记录，这对于最终了解碳循环中的自然干扰以及二氧化碳与气候之间的关系和相互作用是必要的。与温度记录(以及颗粒/化学/宇宙成因的同位素记录)相比，这一记录将提供有关二氧化碳与气候的因果关系以及在不同时间尺度上产生大气二氧化碳变化的机制的信息。如果能够证实末次冰期的快速变化，就能获得有关地球痕量气体最近几次人为变化的气候序列的重要信息。