Collaborative Research: Past and Modern Variability of Summer and Winter Rainfall on the Pacific Slope of the Central Andes (Chile)

合作研究：安第斯山脉中部太平洋斜坡夏季和冬季降雨的过去和现代变化（智利）

• 批准号: 0213657
• 负责人: Jay Quade
• 金额: $ 12.48万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0213657&HistoricalAwards=false
• 关键词: Collaborative; Research; Past; Modern; Variability

This project seeks to use fossil wetland deposits and fossil rodent middens from the Atacama Dessert in the Central Andes as a means to estimate precipitation and seasonality for the region as a aid to reconstructing Quaternary climate. The fossil data and paleoclimatic reconstructions will be guided, in part, by consideration of the modalities of the modern climate.The goal of the research is to use the fossil data to understand the steep transition between two seasonal rainfall regimes linked to the South American Summer Monsoon and the southern westerlies. The chosen research sites underlie this transition zone and are along a 300-km stretch of Atacama Desert highlands and the southern edge of the Altiplano.Broadly speaking, the research will support international scientific collaboration and undergraduate student training. It has the potential to link important paleoclimate proxy records with modern climatology in order to interpret past climate processes in a region with little existing paleoclimate data.

该项目旨在利用安第斯山脉中部阿塔卡马沙漠的湿地沉积化石和啮齿动物化石作为估算该地区降水量和季节性的手段，以帮助重建第四纪气候。 化石数据和古气候重建将在一定程度上考虑现代气候的模式。该研究的目标是利用化石数据来了解与南美夏季相关的两个季节性降雨状况之间的急剧转变季风和南西风。 选定的研究地点位于该过渡区下方，沿着阿塔卡马沙漠高地绵延 300 公里和高原南缘。从广义上讲，该研究将支持国际科学合作和本科生培训。 它有可能将重要的古气候代理记录与现代气候学联系起来，以便解释现有古气候数据很少的地区过去的气候过程。