P2C2: Orbital Forcing of South Indian Hydroclimate

P2C2：南印度水文气候的轨道强迫

• 批准号: 1703123
• 负责人: Judson Partin
• 金额: $ 48.33万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1703123&HistoricalAwards=false
• 关键词: P2C2; Orbital; Forcing; South; Indian

This project aims to address a deficit of orbital-scale speleothem data from India regarding the Indian Summer Monsson (ISM). The project focusses on cave deposits from southern India, south of the Himalayas, where the impact of the monsoon is greatest.The scientific rationale for the research is designed to address the following hypotheses: 1) orbital variations force rainfall changes by uniformly affecting the global monsoon; 2) Chinese stalagmite records reflect upstream source changes related to ISM amplitude; and 3) regional climate dynamics, in addition to variations in local summer insolation, contributes substantially to ISM variability. The broader impacts involve examining the Indian Monsoon as a key aspect of the global climate system, international science collaboration, support of an early career postdoctoral scholar, and outreach in public lectures through Science Under the Stars in Austin, Texas.

该项目旨在解决印度关于印度夏季季风（ISM）的轨道尺度洞穴沉积物数据的不足。该项目的重点是喜马拉雅山脉以南印度南部的洞穴沉积物，那里的季风影响最大。研究的科学原理旨在解决以下假设：1）轨道变化通过均匀影响全球季风而迫使降雨变化; 2）中国石笋记录反映了与ISM幅度相关的上游源变化;区域气候动力学以及当地夏季太阳辐射的变化对ISM的变化有重要贡献。更广泛的影响包括研究印度季风作为全球气候系统的一个关键方面，国际科学合作，早期职业博士后学者的支持，以及通过德克萨斯州奥斯汀的星空下的科学在公开讲座中的推广。

项目成果

Methane, Monsoons, and Modulation of Millennial‐Scale Climate

• DOI: 10.1029/2020gl087613
• 发表时间: 2020-04
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: K. Thirumalai;S. Clemens;J. Partin