COLLABORATIVE RESEARCH: Century-Scale Variability in the Asian Southwest Monsoon

合作研究：亚洲西南季风的世纪尺度变化

• 批准号: 0082116
• 负责人: Jonathan Overpeck
• 金额: $ 11.94万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-15 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0082116&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Century; Scale; Variability

This award is for a collaborative project (between University of Arizona, Louisiana State University, and Academia Sinica, China) to use proven methods to provide the first systematic study of century-scale SW Asian Monsoon variability. The project will focus on Tibet, where earlier work has demonstrated strong monsoonal influences, and where the investigators know they can obtain well-dated lake sediment records characterized by century-scale variability. By comparing high resolution, multiproxy (sedimentologial, geochemical and paleoecological) records along a sensitive east-west climate gradient, they will be able to separate the regional (monsoonal) climate signal from site-specific environmental influences. Moreover, they will be able to discern if any observed monsoonal events are time-transgressive or not, and also be able to quantify the sensitivity and rate of response of three different important vegetation types to century-scale climate events.

该奖项是为了表彰一个合作项目(亚利桑那大学、路易斯安那州立大学和中国科学院中国)利用成熟的方法对百年尺度的西南部亚洲季风变率进行首次系统研究。该项目将把重点放在西藏，那里的早期工作显示出强烈的季风影响，调查人员知道，他们可以在那里获得具有世纪尺度变化特征的准确的湖泊沉积物记录。通过比较沿敏感的东西气候梯度的高分辨率、多维(沉积学、地球化学和古生态)记录，他们将能够将区域(季风)气候信号与特定地点的环境影响分开。此外，他们将能够辨别任何观测到的季风事件是否具有时间超越性，还能够量化三种不同的重要植被类型对世纪尺度气候事件的敏感度和反应速度。