Projected U.S. drought extremes through the twenty-first century with vapor pressure deficit.

ABSTRACT: Global warming is expected to enhance drought extremes in the United States throughout the twenty-first century. Projecting these changes can be complex in regions with large variability in atmospheric and soil moisture on small spatial scales. Vapor Pressure Deficit (VPD) is a valuable measure of evaporative demand as moisture moves from the surface into the atmosphere and a dynamic measure of drought. Here, VPD is used to identify short-term drought with the Standardized VPD Drought Index (SVDI); and used to characterize future extreme droughts using grid dependent stationary and non-stationary generalized extreme value (GEV) models, and a random sampling technique is developed to quantify multimodel uncertainties. The GEV analysis was performed with projections using the Weather Researc

SUBMITTER: Gamelin BL 

PROVIDER: S-EPMC9124218 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature