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- W2364400530 abstract "Based on the data of monthly mean surface air temperature and monthly precipitation from 116 meteorological stations in Haihe river basin and the around area during 1960-2010,the drought index in crop growth period(from spring to autumn) from 1960 to 2010 are calculated using the relative humidity index(M),and then the spatial and temporal distribution characteristics of meteorological droughts are analyzed.The results are as follows:(1)Spring drought was the most serious event and the 51-year average drought rate in spring was 56.90%.Drought rate in summer was lower than that in spring and the 51-year average drought rate in summer was 7.59%.In autumn,drought rate presented an upward trend.(2)Over the past 51 years in Haihe river basin,spring drought in the 1960s was the most severe one.The most serious in-terdecadal droughts occurred respectively in summer in the 1990s,autumn in the 1980s.(3)Occurrence probability of spring drought was more than 19.61% in the whole river basin and the areas with drought occurrence probability more than 50% accounted for 3/4 of the whole study area.The highest occurrence probabilities of spring drought were almost distrib-uted in the northeast of Hebei province and the Beijing-Tianjin area.Occurrence probability of drought in summer was lower than than in spring.In summer,the highest drought-prone areas were mainly located in the north of Datong and Zhangjiakou.Occurrence probability of autumn drought was more than 25% in most area of the whole river basin.The highest drought-prone areas in autumn were mainly located in Beijing-Tianjin-Tangshan area." @default.
- W2364400530 created "2016-06-24" @default.
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- W2364400530 date "2013-01-01" @default.
- W2364400530 modified "2023-09-23" @default.
- W2364400530 title "Spatial and temporal distributions characteristics of drought during crop growth period in Haihe river basin over past 51 years" @default.
- W2364400530 hasPublicationYear "2013" @default.
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