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标题：Water balance of the turn-of-the-century drought in the Southwestern United States
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作者：Gregory J McCabe ; David M Wolock
期刊名称：Environmental Research Letters
印刷版ISSN：1748-9326
电子版ISSN：1748-9326
出版年度：2021
卷号：16
期号：4
页码：1-9
DOI：10.1088/1748-9326/abbfc1
出版社：IOP Publishing Ltd
摘要：Analysis of the water balance of the southwestern United States (SWUS) during 1900 through 2018 was used to evaluate the magnitude of the turn-of-the-century (TOC) drought in the SWUS. Results indicate that the warm season (April through September) soil moisture and runoff during the TOC drought were among the lowest values of the 1900 through 2018 period. Additionally, increases in temperature were identified as a significant driver of low soil moisture and runoff conditions during the warm season. In contrast, during the cool seasons (October through March) and the water year (October 1 through September 30) during the TOC drought, soil moisture and runoff did not indicate extremely dry conditions even though temperatures were the highest of the 1900 through 2018 period. © Not subject to copyright in the USA. Contribution of US Geological Survey..
关键词：climate variability; drought; regional climate change; water budgets