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

这一奖项是为了支持一项合作研究(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)，以极大地扩大根据树轮重建过去干旱的范围，目前基于Palmer干旱严重程度指数，方法是：(A)改善和在地理上扩展北美从树轮重建干旱的现有网格，(B)考虑新的干旱措施，(C)特别开发技术，重建和分析与水库运行和水资源分配的干旱管理相关的径流系列的关键属性，以及(D)研究改进重建和分析时空干旱变异性的新的统计方法。

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.