| 周晋红,张军,刘武华.近45年来太原气候变化特征研究[J].干旱地区农业研究,2008,(3):7~13 |
| 近45年来太原气候变化特征研究 |
| Study on characteristics of climate change in Taiyuan in recent 45 years |
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| DOI：10.7606/j.issn.1000-7601.2008.03.02 |
| 中文关键词: 气温 降水量 气候变化 |
| 英文关键词:temperature precipitation climate change |
| 基金项目:山西省气象局重点科研项目(200509) |
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| 摘要点击次数: 168 |
| 全文下载次数: 136 |
| 中文摘要: |
| 利用山区代表站阳曲和平川代表站清徐1961~2005年气候观测资料,对太原市气候变化特征进行了详细分析。结果表明:(1)近45年来,太原山区和平川年降水量呈减少趋势,主要是因夏、秋季降水减少造成;太原年平均气温为明显上升趋势,年平均气温的升高主要是以冬、春季平均气温升高为主,其中平均最低气温均比平均最高气温上升显著,夜间增温明显;1986年、1993年分别为山区和平川年平均气温转折年份,山区冬季平均气温从1985/1986冬季后发生突变;随着气候变暖,太原干旱化在加剧。(2)山区的异常冷冬和暖冬年多于平川,严重少雨年偏少但降水量距平偏大,平川严重少雨年出现频繁但降水量距平偏小;近45年来太原气候经历了由异常到平稳再到异常的变化,而且平川尤为显著。 |
| 英文摘要: |
| Climate change feature in recent 45 years in Taiyuan is studied in detail by using the climatic data collected from typical meteorological stations in Qingxu in mountain area and Yangqu in plain area in Taiyuan from 1961～2005.The results show:(1) The annual precipitation in mountain and plain areas are both in a decreased trend in recent 45 years because of the decreased precipitations in spring and autumn,while the annual mean temperature in both areas increase significantly mainly because of the increase of mean temperature in spring and winter.The mean minimum temperature in every season increases more significantly than the mean maximum temperature,so it is certain that temperature in evenings has increased notably.1986 and 1993 are separately the years of turn of annual mean temperatures in mountain and plain areas,and after the winter of 1985/1986,mean temperature in winter has occurred abrupt change.With climate warming in Taiyuan,the arid trend is more and more severe.(2) In recent 45 years,the number of severe cold winters and severe warm winters in mountain area are more than that in plain area,and the number of severe rainless years is less than that in plain area,but the severe rainless years in mountain area have bigger annual precipitation anomalies,while the annual precipitation anomalies are smaller in severe rainless years in plain area.In recent 45 years,climate in Taiyuan has experienced the changes of abnormality to stationary and to abnormality,which is more significant in plain area. |
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