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The Record of Cosmogenic In-situ and Atmospheric 14C in GISP2 Ice Core

The Record of Cosmogenic In-situ and Atmospheric 14C in GISP2 Ice Core
GISP2 冰芯中宇宙成因原位和大气 14C 的记录
批准号：
9530897
负责人：
Devendra Lal
金额：
$15.25万
依托单位：
University of California-San Diego
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1996
资助国家：
美国
项目状态：
已结题
起止时间：
1996-09-15 至 2000-08-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530897&HistoricalAwards=false
关键词：
RecordCosmogenicsituAtmospheric14C

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中文摘要
翻译
该项目建议研究格陵兰冰盖项目2 （GISP2）从格陵兰冰盖顶部回收的冰芯中捕获的空气样本中的宇宙成因和大气14C记录。GISP2冰芯中14C的丰度将用于确定该地点过去3万年的大气化学，并确定气候变化的年表。14C示踪剂的变化是从完全冰期到现在间冰期过渡期间大气变化的重要证据。
英文摘要
The PI proposes to study the record of the cosmogenic and atmospheric 14C in air samples that have been trapped in the ice core recovered from the summit of the Greenland ice sheet by the Greenland Ice Sheet Project 2 (GISP2). The abundance of 14C in the GISP2 ice core will be used to determine the atmospheric chemistry at the site for the past 30,000 years and to determine the chronology of climatic changes. Changes in the 14C tracer are an important piece of the evidence of a changing atmosphere during the transition from full glacial conditions to the present interglacial period.
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会议论文
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