Isotope Dendroclimatology in Tropical Asia

热带亚洲的同位素树木气候学

基本信息

  • 批准号:
    0402425
  • 负责人:
  • 金额:
    $ 33.19万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2004
  • 资助国家:
    美国
  • 起止时间:
    2004-08-01 至 2007-07-31
  • 项目状态:
    已结题

项目摘要

This award supports research to examine the interplay of tropical oceans and global-scale atmospheric circulation processes at seasonal to inter-annual time scales using isotope dendroclimatolgy, a novel and evolving investigative tool for extracting stable isotope measurements from tree cellulose.Specifically, the researcher and his colleagues will develop annually resolved proxy estimates of rainfall variability from tropical Asia for the past several centuries using isotope dendroclimatology. The data will be used to examine relationships between regional rainfall patterns (including drought cycles) and broader patterns of climate variability such as the El Nino Southern Oscillation (ENSO), the Asian monsoon, and Pacific decadal variability). The investigator and his colleagues have demonstrated the potential of this new approach using trees from Costa Rica, Indonesia, and Thailand and now will expand this research to samples collected by several different research teams working in tropical forests throughout Asia.The researcher and his colleagues will focus their efforts on the monsoons of Southeast Asia and ENSO to better understand the natural patterns of climate variability in the tropics at seasonal, inter-annual, and decadal scales thereby improving the scientific community's abilities to predict the effects of climate variability on human society and natural ecosystems.The field of paleoclimatology owes many of its recent strides in knowledge to data derived from tree rings. However, the field of tree ring research has been primarily limited to collecting data from the mid to high latitudes because in these regions, trees develop growth banding due to differences in temperature and precipitation as a result of seasonality. In general for the tropical regions, seasonality is broadly described as relatively wet and dry. Such environmental factors have conspired with botanical evolution over time to create a situation in which the trees do not readily give up the climate information they may possess using the traditional visual methods of growth analyses because not all tropical trees create obvious growth bands. This has created something of a problem for paleoclimatolgists because the Tropics cover a significant area of the Earth yet the climate data they possess has barely been tapped because trees have not been available as a data archive. This research holds the promise of opening up that archive to quantitative analysis.
该奖项支持使用同位素树木气候学研究热带海洋和全球尺度大气环流过程在季节到年际时间尺度上的相互作用,这是一种用于从树木纤维素中提取稳定同位素测量的新颖和不断发展的调查工具。研究人员和他的同事们将利用同位素,对过去几个世纪亚洲热带地区的降雨变化进行年度分解代用估计树木气候学 这些数据将用于研究区域降雨模式(包括干旱周期)与更广泛的气候变化模式(如厄尔尼诺/南方涛动、亚洲季风和太平洋十年变化)之间的关系。研究人员和他的同事们已经证明了这种新方法的潜力,他们使用了来自哥斯达黎加、印度尼西亚、研究人员和他的同事们将把研究重点放在东南亚季风和ENSO上,以便更好地了解热带气候变化的自然模式,季节、年际和年代际尺度,从而提高科学界预测气候变化对人类社会和自然生态系统影响的能力。古气候学领域最近的许多知识进步都归功于树木年轮数据。 然而,树木年轮研究领域主要限于收集中高纬度地区的数据,因为在这些地区,树木由于季节性造成的温度和降水差异而形成生长带。 一般来说,热带地区的季节性被概括为相对潮湿和干燥。 这些环境因素与植物的长期进化相结合,造成了这样一种情况,即树木不会轻易放弃它们可能拥有的气候信息,这些信息是使用传统的视觉生长分析方法获得的,因为并非所有的热带树木都能产生明显的生长带。 这给古气候学家带来了一些问题,因为热带地区覆盖了地球的很大一部分,但他们所拥有的气候数据几乎没有被利用,因为树木还没有作为数据档案。这项研究有希望打开档案定量分析。

项目成果

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Daniel Schrag其他文献

Linking data analytics to real-world business issues: The power of the pivot table
  • DOI:
    10.1016/j.jaccedu.2021.100744
  • 发表时间:
    2021-12-01
  • 期刊:
  • 影响因子:
  • 作者:
    Madeline A. Domino;Daniel Schrag;Mariah Webinger;Carmelita Troy
  • 通讯作者:
    Carmelita Troy

Daniel Schrag的其他文献

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{{ truncateString('Daniel Schrag', 18)}}的其他基金

Magnesium Isotope Geochemistry of Carbonate Sediments
碳酸盐沉积物的镁同位素地球化学
  • 批准号:
    0961372
  • 财政年份:
    2010
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Oxygen Isotope Geochemistry of Marine Sulfate
海洋硫酸盐的氧同位素地球化学
  • 批准号:
    0452329
  • 财政年份:
    2005
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Paleoclimate Dynamics Summer School; Valle d'Aosta, Italy; June 16-25, 2003
古气候动力学暑期学校;
  • 批准号:
    0333277
  • 财政年份:
    2003
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Collaborative Research: Pilot Study in Tropical Isotope Dendroclimatology
合作研究:热带同位素树木气候学试点研究
  • 批准号:
    0214328
  • 财政年份:
    2002
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Collaborative Research: Reconstructing the Temperature and Salinity of the Glacial Ocean from Deep-Sea Pore Fluids
合作研究:从深海孔隙流体重建冰川海洋的温度和盐度
  • 批准号:
    0096909
  • 财政年份:
    2001
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Collaborative Research: Shallow Circulation in the Tropical Pacific: A Geochemical and Modeling Study
合作研究:热带太平洋浅层环流:地球化学和模拟研究
  • 批准号:
    9819257
  • 财政年份:
    1999
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Continuing Grant
Career: Geochemical Approaches to Oceanography and Climatology: A Plan for Research and Education
职业:海洋学和气候学的地球化学方法:研究和教育计划
  • 批准号:
    9733688
  • 财政年份:
    1998
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Continuing Grant
Pore Fluid as Paleoceanographic Proxy: Reconstructing the Temperature and 0 18 O of the Glacial Ocean
孔隙流体作为古海洋学代理:重建冰川海洋的温度和 0 18 O
  • 批准号:
    9617860
  • 财政年份:
    1997
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Continuing Grant
Collaborative Research: Ocean Circulation in the Tropical Pacific: A Geochemical and Modeling Study
合作研究:热带太平洋海洋环流:地球化学和模拟研究
  • 批准号:
    9796253
  • 财政年份:
    1997
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Standard Grant
Pore Fluid as Paleoceanographic Proxy: Reconstructing the Temperature and 0 18 O of the Glacial Ocean
孔隙流体作为古海洋学代理:重建冰川海洋的温度和 0 18 O
  • 批准号:
    9796236
  • 财政年份:
    1997
  • 资助金额:
    $ 33.19万
  • 项目类别:
    Continuing Grant

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dendroecology and dendroclimatology
树木生态学和树木气候学
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