| 昌宁县近50a气候变化特征分析 |
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| 引用本文： | 李艳艳,丁威,杨怀臣.昌宁县近50a气候变化特征分析[J].云南大学学报(自然科学版),2011(Z1). |
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| 作者姓名： | 李艳艳 丁威 杨怀臣 |
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| 作者单位： | 云南大学大气科学系;昌宁县气象局; |
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| 摘 要： | 利用昌宁国家一般气象站1961～2010年的观测资料,采用数理统计、趋势拟合等方法,分析了昌宁近50 a气温、降水的变化特征.结果表明:近50 a昌宁年平均气温、年平均最高气温、年平均最低气温、四季平均气温均呈上升趋势,20世纪90年代中期以后气温增温非常明显,气候变暖主要来自秋、冬气温增高的贡献;降水量呈缓慢下降趋势,夏、冬下降趋势最为明显.过去50 a昌宁县气候存在凉湿—凉干—暖湿—暖干的变化过程.
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| 关 键 词： | 昌宁 气候 变化趋势 气温 降水 |
Climate characteristic of Changning County in nearly 50 years |
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| LI Yan-yan,DING Wei,YANG Huai-cheng.Climate characteristic of Changning County in nearly 50 years[J].Journal of Yunnan University(Natural Sciences),2011(Z1). |
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| Authors: | LI Yan-yan DING Wei YANG Huai-cheng |
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| Institution: | LI Yan-yan1,2,DING Wei2,YANG Huai-cheng2(1.Department of Atmospheric Science,Yunnan University,Kunming 650091,China,2.Changning Bureau of meteorology,Changning 678100,China) |
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| Abstract: | Based on the meteorological data of Changning weather station from 1961 to 2010,using mathematical statistics method and trend fitting,the temperature and precipitation characteristics of Changning county in nearly 50 years were analyzed.The results show that annual average temperature is rising,as well as the average maximum temperature,annual mean minimum temperature and average seasonal temperature.After the middle of 1990s,warming temperatures is very obvious.Warming is mainly due to the winter and autu... |
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| Keywords: | Changning climate trend temperature precipitation |
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