C02/Air Ratios and 13CO2 in Ice Cores

该奖项支持第二个格陵兰冰盖项目（GISP II）的一个方面。由于当时的累积速率和年平均温度，格陵兰Summit的GISP核心将产生具有极好时间分辨率的非常古老的冰和古气候信息。这项工作将在该岩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/宇宙成因同位素记录）相比，这一记录将产生关于CO2与气候的因果关系的信息，以及在不同时间尺度上产生大气CO2变化的机制。如果最后一次冰期的快速变化能够得到证实，将获得有关近代人类活动对地球微量气体变化的气候序列的重要信息。

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.