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	Temporal-Spatial Variation of Drought Indicated by SPI and SPEI in Ningxia Hui Autonomous Region, China
	Tan, Chunping1,2; Yang, Jianping1; Li, Man3
刊名	ATMOSPHERE
	2015-10-01
卷号	6期号:10页码:1399-1421
关键词	drought Standardized Precipitation Index (SPI) Standardized Precipitation Evapotranspiration Index (SPEI) atmospheric circulation Ningxia Hui Autonomous Region of China
ISSN号	2073-4433
DOI	10.3390/atmos6101399
通讯作者	Yang, Jianping(jianping@lzb.ac.cn)
英文摘要	The Ningxia Hui Autonomous Region of China (Ningxia) is an important food production area in northwest China severely affected by drought. The Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI) were calculated based on monthly meteorological data to explore climate change and variation in drought intensity, duration, frequency, and spatial extent in Ningxia during 1972-2011. Results show that the SPEI is more applicable than the SPI for exploring climate change and drought variation in Ningxia. The Ningxia climate experienced a significant drying tendency. Annual SPEI decreased about 0.37 decade(-1) during 1972-2011. Drought was exacerbated by this drying tendency. Regional average duration, maximum duration, intensity, and frequency of drought identified by the SPEI increased by one month, three months, 0.15%, and 36.1%, respectively, during 1992-2011 compared to the period of 1972-1991. The spatial extent of drought identified by the SPEI increased about 14.4% decade(-1) in the spring during 1972-2011. Spatially, drought frequency increased from north to south. Average intensity (maximum duration) of drought calculated by the SPEI increased (decreased) northward and southward from the central arid area.
收录类别	SCI
WOS关键词	STANDARDIZED PRECIPITATION INDEX ; ASIAN SUMMER MONSOON ; RIVER-BASIN ; TIME SCALES ; CLIMATE ; IMPACT ; CLASSIFICATION ; SEVERITY ; TRENDS ; EVAPOTRANSPIRATION
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000366735200001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557148
专题	寒区旱区环境与工程研究所
通讯作者	Yang, Jianping
作者单位	1.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 73000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanxi Normal Univ, Coll Geog Sci, Linfen 041000, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Tan, Chunping,Yang, Jianping,Li, Man. Temporal-Spatial Variation of Drought Indicated by SPI and SPEI in Ningxia Hui Autonomous Region, China[J]. ATMOSPHERE,2015,6(10):1399-1421.
APA	Tan, Chunping,Yang, Jianping,&Li, Man.(2015).Temporal-Spatial Variation of Drought Indicated by SPI and SPEI in Ningxia Hui Autonomous Region, China.ATMOSPHERE,6(10),1399-1421.
MLA	Tan, Chunping,et al."Temporal-Spatial Variation of Drought Indicated by SPI and SPEI in Ningxia Hui Autonomous Region, China".ATMOSPHERE 6.10(2015):1399-1421.

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