Derivation and Analysis of Climatic Information from Tree-Rings

树木年轮气候信息的推导与分析

• 批准号: 8716630
• 负责人: Gordon Jacoby
• 金额: --
• 依托单位: Columbia University Lamont Doherty Earth Observatory
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-15 至 1990-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716630&HistoricalAwards=false
• 关键词: Derivation; Analysis; Climatic; Information; Tree

This award is for funding of dendroclimatic research at the Tree-ring Laboratory of Lamont-Doherty Geological Observatory at Columbia University. Research will concentrate on the derivation of climatic information from trees at sites located in North American high latitudes (primarily temperature sensitive) and at sites in the eastern United States (primarily moisture sensitive). The main objectives of the research are: (1) to expanded the analyses of the boreal tree-ring series and derived climatic reconstructions, (2) expand, in a north-south direction, the sampling density of trees for this region, (3) continue development of X-ray densitometric techniques (4) study C02/climate/biosphere relations using correlations between tree- ring indices and normalized differences vegetation index derived from satellite data, and (5) undertake limited development of tree-ring series from South America. This work will allow quantitative reconstruction of the climate system behavior through various tree-ring analyses techniques. The resulting data would be the basis against which numerical models of the climate system can be calibrated and scientific hypotheses regarding climatic changes on decadal-to-century time scales be tested.

该奖项是为了资助哥伦比亚大学拉蒙特-多尔蒂地质观测站树木年轮实验室的树木气候研究。研究将集中于从北美高纬度地区（主要是温度敏感地区）和美国东部地区（主要是湿度敏感地区）的树木中获取气候信息。研究的主要目标是：（1）扩大北方树轮系列分析和由此得到的气候重建;（2）扩大该地区南北方向的树木采样密度;（3）继续发展X射线密度测量技术;（4）利用树木和森林之间的相互关系研究二氧化碳/气候/生物圈的关系;年轮指数和归一化差异植被指数来自卫星数据，和（5）进行有限的发展树木年轮系列从南美洲。这项工作将允许通过各种树木年轮分析技术定量重建气候系统的行为。由此产生的数据将成为校准气候系统数值模型和检验关于十年至世纪时间尺度气候变化的科学假设的基础。