| Cite this article: | 蔡霞,宁松瑞,解建强,等.1960―2019年山西右玉降水、气温及蒸发量变化特征分析[J].灌溉排水学报,0,():-. |
| caixia,ningsongrui,xiejianqiang,et al.1960―2019年山西右玉降水、气温及蒸发量变化特征分析[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Precipitation in Youyu, Shanxi from 1960 to 2019Analysis on the characteristics of temperature and evaporation |
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caixia1, ningsongrui2,3,4, xiejianqiang1, cailin5
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1.Shuozhou Meteorological Bureau;2.State Key Laboratory of Eco-Hydraulic In Northwest Arid Region, Xi '3.'4.an University of Technology;5.Shandong Heze College
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| Abstract: |
| 【 Objective 】 To study the change rules of precipitation, air temperature and evaporation in Youyu County under the background of climate change, so as to rationally use climate resources and efficiently use precipitation resources. 【 Method 】 The monthly precipitation, temperature and evaporation in Youyu County from 1960 to 2019 were systematically analyzed by using anomaly analysis method, linear trend estimation method, Mannmann-Kendall test method and Morlet wavelet analysis method. 【 Results 】 Precipitation increased, air temperature increased and evaporation decreased in Youyu County. According to the mann-Kendall mutation test and the sliding T test, the year 1994 was the abrupt change point of the rising temperature series, while the year 2002 was the abrupt change point of the decreasing evaporation series. The series of precipitation, temperature and evaporation all have a period of about 2-4A, and run through the whole series. On the scale of 8A, precipitation experienced 8 dry and 7 wet periods, temperature experienced 7 "cooling and warming" alternations, and evaporation experienced 5 "more and less" transitions on the scale of 16A. 【 Conclusion 】 The research results can provide scientific reference for rational development and utilization of water resources, agricultural irrigation, ecological environment improvement and so on. |
| Key words: Youyu County; Precipitation; The temperature; Evaporation; Mutation; The wavelet |
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