干旱区生态环境知识资源中心(Arid): A Methodology for Flash Drought Identification: Application of Flash Drought Frequency across the United States

Arid

DOI	10.1175/JHM-D-18-0198.1
	A Methodology for Flash Drought Identification: Application of Flash Drought Frequency across the United States
	Christian, Jordan I.1; Basara, Jeffrey B.1,2; Otkin, Jason A.3; Hunt, Eric D.4; Wakefield, Ryann A.1; Flanagan, Paul X.1,5; Xiao, Xiangming 6
通讯作者	Christian, Jordan I.
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2019
卷号	20 期号:5 页码:833-846
英文摘要	With the increasing use of the term flash drought within the scientific community, Otkin et al. provide a general definition that identifies flash droughts based on their unusually rapid rate of intensification. This study presents an objective percentile-based methodology that builds upon that work by identifying flash droughts using standardized evaporative stress ratio (SESR) values and changes in SESR over some period of time. Four criteria are specified to identify flash droughts: two that emphasize the vegetative impacts of flash drought and two that focus on the rapid rate of intensification. The methodology was applied to the North American Regional Reanalysis (NARR) to develop a 38-yr flash drought climatology (1979-2016) across the United States. It was found that SESR derived from NARR data compared well with the satellite-based evaporative stress index for four previously identified flash drought events. Furthermore, four additional flash drought cases were compared with the U.S. Drought Monitor (USDM), and SESR rapidly declined 1-2 weeks before a response was evident with the USDM. From the climatological analysis, a hot spot of flash drought occurrence was revealed over the Great Plains, the Corn Belt, and the western Great Lakes region. Relatively few flash drought events occurred over mountainous and arid regions. Flash droughts were categorized based on their rate of intensification, and it was found that the most intense flash droughts occurred over the central Great Plains, Corn Belt, and western Great Lakes region.
英文关键词	Drought Climatology Evapotranspiration Statistics Reanalysis data
类型	Article
语种	英语
国家	USA
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000467315500001
WOS关键词	BOUNDARY LAYER INTERACTIONS ; EVAPORATIVE STRESS INDEX ; SOIL-MOISTURE ; PART II ; METEOROLOGICAL CONDITIONS ; VEGETATION CONDITIONS ; ATMOSPHERIC CONTROLS ; VARIABILITY ; EVOLUTION ; PLAINS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217188
作者单位	1.Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA; 2.Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA; 3.Univ Wisconsin, Space Sci & Engn Ctr, Cooperat Inst Meteorol Satellite Studies, Madison, WI USA; 4.Atmospher & Environm Res Inc, Lexington, MA USA; 5.Univ Nebraska, Sch Nat Resources, High Plains Reg Climate Ctr, Lincoln, NE USA; 6.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
推荐引用方式 GB/T 7714	Christian, Jordan I.,Basara, Jeffrey B.,Otkin, Jason A.,et al. A Methodology for Flash Drought Identification: Application of Flash Drought Frequency across the United States[J],2019,20(5):833-846.
APA	Christian, Jordan I..,Basara, Jeffrey B..,Otkin, Jason A..,Hunt, Eric D..,Wakefield, Ryann A..,...&Xiao, Xiangming.(2019).A Methodology for Flash Drought Identification: Application of Flash Drought Frequency across the United States.JOURNAL OF HYDROMETEOROLOGY,20(5),833-846.
MLA	Christian, Jordan I.,et al."A Methodology for Flash Drought Identification: Application of Flash Drought Frequency across the United States".JOURNAL OF HYDROMETEOROLOGY 20.5(2019):833-846.