Mesoamerican Dendroclimatology: Climate Dynamics and Socioeconomic Applications

中美洲树木气候学：气候动力学和社会经济应用

基本信息

批准号：
0753399
负责人：
David Stahle
金额：
$ 32.73万
依托单位：
University of Arkansas
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2008
资助国家：
美国
起止时间：
2008-07-01 至 2012-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0753399&HistoricalAwards=false
关键词：
Mesoamerican Dendroclimatology Climate Dynamics Socioeconomic

项目摘要

Funding will allow the researcher to continue developing long, exactly dated tree-ring chronologies from Mesoamerica for use in reconstructing patterns of seasonal precipitation and associated large-scale climate dynamics. Specifically, the researcher will: 1) develop a network of climate-sensitive Montezuma baldcypress, Douglas-fir, and other conifer chronologies in central and southern Mexico and Guatemala; 2) analyze the Montezuma baldcypress chronologies spanning the past 1200 years at Barranca de Amealco, Qeretaro and the past 1600-years at Los Peroles, San Luis Potosi; 3) expand gridded drought severity reconstructions across Mexico and Guatemala to provide a proxy record of climate variability and to place the current drought in historical context; 4) investigate the long term, large scale ocean-atmospheric forcing of Mesoamerican hydroclimatology; 5) develop calibrated reconstructions of regional precipitation, streamflow, and crop yield records for southern Mexico and Guatemala; and 6) explore the link between reconstructed climate extremes and the historical record of epidemic disease, locust outbreaks, and social disruption in Mexico and Guatemala. This research integrates across usually disparate fields of inquiry such as climate, biology, epidemiology, and economics. The intellectual integration coupled with strong training and international collaboration makes for promising broad impact by this project.

资金将使研究人员能够继续开发中美洲的长期、准确年代的树木年表，用于重建季节性降水模式和相关的大规模气候动态。具体来说，研究人员将：1）在墨西哥中部和南部以及危地马拉建立一个气候敏感的蒙特苏玛秃柏、花旗松和其他针叶树年表网络； 2) 分析克雷塔罗 Barranca de Amealco 过去 1200 年的蒙特祖玛秃柏年表以及圣路易斯波托西洛斯佩罗莱斯过去 1600 年的年表； 3) 扩大墨西哥和危地马拉的网格干旱严重程度重建，以提供气候变化的代理记录，并将当前的干旱置于历史背景中； 4) 研究中美洲水文气候学的长期、大规模海洋-大气强迫； 5) 对墨西哥南部和危地马拉的区域降水、水流和作物产量记录进行校准重建； 6) 探索重建的极端气候与墨西哥和危地马拉流行病、蝗虫爆发和社会混乱的历史记录之间的联系。这项研究整合了通常不同的研究领域，如气候、生物学、流行病学和经济学。智力整合加上强大的培训和国际合作使得该项目有望产生广泛的影响。