globalchange  > 科学计划与规划
DOI: 10.1002/2015GL064018
论文题名:
Heat wave flash droughts in decline
作者: Mo K.C.; Lettenmaier D.P.
刊名: Geophysical Research Letters
ISSN: 0094-8747
EISSN: 1944-8478
出版年: 2015
卷: 42, 期:8
起始页码: 2823
结束页码: 2829
语种: 英语
英文关键词: drought ; trends
Scopus关键词: Climatology ; Soil moisture ; Growing season ; Heat waves ; Most likely ; Pacific Northwest ; Temperature observations ; Trends ; Drought ; drought ; evapotranspiration ; heat flow ; precipitation assessment ; regional climate ; soil moisture ; United States
英文摘要: Flash drought is a term that was popularized during rapidly evolving droughts in the Central U.S. in 2012 that were associated with heat waves. We posit that there are two kinds of flash droughts, and we will focus on heat wave flash droughts, of which the 2012 events were typical. We find, based on an analysis of temperature observations and model-reconstructed soil moisture (SM) and evapotranspiration from 1916 to 2013, that heat wave flash droughts in the conterminous U.S. (CONUS) are most likely to occur over the Midwest and the Pacific Northwest during the growing season. We also find that the number of such events across the CONUS has been decreasing over the last century but rebounded after 2011. The long-term downward trends appear to be associated with generally increasing trends in SM resulting from increasing trends in precipitation over the areas where heat wave flash droughts are most likely to occur. ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929515129&doi=10.1002%2f2015GL064018&partnerID=40&md5=07f0fea88a6593d2d1432d297fbffb50
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8363
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Climate Prediction Center, NCEP/NWS/NOAA, College Park, MD, United States

Recommended Citation:
Mo K.C.,Lettenmaier D.P.. Heat wave flash droughts in decline[J]. Geophysical Research Letters,2015-01-01,42(8).
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