巴音河流域气象要素变化特性探析 |
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引用本文:梁晓燕1,莫淑红1,巩瑶2,陈丽丽1.巴音河流域气象要素变化特性探析[J].电网与清洁能源,2019,35(10):82~89 |
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基金项目:国家重点研发计划课题( 2017YFC0403605);国家自然科学基金项目( 51679185) |
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中文摘要:开展气象要素演变特征分析,对于高效利用当地水电、光热等清洁资源具有重要意义。利用德令哈气象站1956—2016年气象资料,采用趋势法、Mann-Kendall法、标准降水蒸发指数法等方法,分析了巴音河流域年和季节的平均气温、总降水量、降水日数和干旱情况的变化特征。结果表明:整体干旱趋于变缓;年和四季的平均气温、降水量以及SPEI值的Hurst指数H均大于0.5,即巴音河流域气温、降水和干旱变化存在着相同的持续性规律。 |
中文关键词:降水 气温 干旱 巴音河流域 |
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Analysis on the Change Characteristics of Meteorological Elements in the Bayin River Basin |
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Abstract:The analysis of the evolution characteristics of meteorological elements is of great significance for the efficient utilization of local clean energy resources such as hydropower and solar energy. Based on the meteorological data of Delingha Meteorological Station from 1956 to 2016, using the trend method, Mann-Kendall method and standard precipitation evaporation index method, variation characteristics of the annual and seasonal mean temperature, total precipitation, precipitation days and drought conditions in the Bayin River Basin were analyzed in the paper. The results show that the overall drought tends to ease, and the Hurst index H of annual and seasonal mean temperature, precipitation and SPEI values are all greater than 0.5, implying that the temperature, precipitation and drought changes in the Bayin River Basin have the same persistent law. |
keywords:precipitation temperature drought the Bayin River Basin |
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