Collaborative Research: Lake Titicaca Drilling Project

合作研究：的的喀喀湖钻探项目

• 批准号: 0082261
• 负责人: Paul Baker
• 金额: $ 66.82万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-01 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0082261&HistoricalAwards=false
• 关键词: Collaborative; Research; Lake; Titicaca; Drilling

This award is for a collaborative research project to drill and core approximately 300 m of sediments at each of two sites in Lake Titicaca (Bolivia/Peru) with the primary objective of reconstructing a 0.5 million year history of climatic change in tropical South America. Lake Titicaca provides a unique opportunity to study a continuous record of past climate in tropical South America. It has a long, rapidly accumulating sediment record in its deep basins. Changes in lake level are well correlated with precipitation amounts (and temperature) in the Amazon basin, and tropical sea-surface temperatures in the adjacent equatorial Atlantic. Modern Lake Titicaca is a nearly closed basin, so that the studies of lake level, chemical composition, and biota are particularly indicative of changes in the amount of precipitation and the precipitation/evaporation ratio.

该奖项授予的是一个合作研究项目，在的的喀喀湖（玻利维亚/秘鲁）的两个地点各钻取约300米的沉积物，主要目标是重建南美洲热带地区50万年的气候变化史。 的的喀喀湖为研究南美洲热带过去气候的连续记录提供了一个独特的机会。 它在其深盆地中有长期、迅速积累的沉积物记录。 湖泊水位的变化与亚马逊盆地的降水量（和温度）以及邻近赤道大西洋的热带海面温度密切相关。 现代的喀喀湖是一个几乎封闭的盆地，因此对湖平面、化学成分和生物区系的研究特别能表明降水量和降水/蒸发比的变化。