COLLABORATIVE RESEARCH: Southern Andes Paleoclimate; A Testof Abrupt Ocean-Atmosphere Reorganizations in Glacial Cycle

合作研究：安第斯山脉南部古气候；

• 批准号: 9219254
• 负责人: George Denton
• 金额: $ 29.1万
• 依托单位: University of Maine
• 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: 1992-12-15 至 1998-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219254&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Southern; Andes; Paleoclimate

The case for abrupt reorganizations of the global climate system rests on the rapidity of glacial terminations and the interhemispheric synchroneity and symmetry of ice-age climatic change. The primary goal of this project is to test this case by establishing a precise anatomy of Southern Hemisphere mid-latitude paleoclimate in the Chilean Andes. If an abrupt reorganization of termination, the perfected Chilean paleoclimatic record should match that of the Northern Hemisphere, particularly the North may show no such correlation. This would be a strong argument against the global mode-switch hypothesis and could alternatively reflect forcing by Antarctic sea ice.

全球气候系统突然重组的理由是冰川终止的速度很快，以及冰期气候变化的半球间同步性和对称性。该项目的主要目标是通过建立智利安第斯山脉南半球中纬度古气候的精确解剖来测试这一情况。如果突然重组终止，完善的智利古气候记录应该与北半球的记录相匹配，特别是北方可能没有这种相关性。这将是反对全球模式转换假说的有力论据，也可能反映出南极海冰的强迫作用。