Collaborative Research: Reconstruction of Drought and Streamflow Over the Coterminous United States from Tree Rings, with Extensions into Mexico and Canada

该奖项用于支持一项合作研究（亚利桑那大学、科罗拉多大学和哥伦比亚大学，后者由 NOAA 单独资助），通过（a）改进和扩大现有的树木年轮北美干旱重建网格，（b）考虑新的干旱措施，（c）专门开发重建和分析与干旱管理相关的计量水流系列关键属性的技术，以显着扩大过去根据树木年轮重建的干旱范围，现在基于帕尔默干旱严重程度指数通过水库运行和水资源分配，以及(d) 研究新的统计方法，以改进干旱时空变化的重建和分析。

This award is for support of a collaborative study (University of Arizona, University of Colorado, and Columbia University, the latter funded under a separate award from NOAA) to considerably broaden the scope of past drought reconstructions from tree rings, now based on the Palmer Drought Severity Index, by (a) improving and geographically expanding the existing grid of North American drought reconstructions from tree rings, (b) considering new measures of drought, (c) specifically developing techniques for reconstructing and analyzing key attributes of gaged streamflow series that are relevant for drought management through reservoir operation and water resource allocation, and (d) investigating new statistical methods for improving the reconstructions and the analysis of space-time drought variability.