| 1960-2009年咸宁市气候变化特征分析 |
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| 引用本文： | 刘梦,祁士华,袁林喜.1960-2009年咸宁市气候变化特征分析[J].气象与环境学报,2012,28(1):71-76. |
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| 作者姓名： | 刘梦 祁士华 袁林喜 |
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| 作者单位： | 中国地质大学环境学院，湖北 武汉 430074 |
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| 摘 要： | 利用1960-2009年咸宁市3个地面气象站气象资料，统计分析近50 a来该区域气温、降水等主要气候要素的年变化、四季变化及年代际变化的趋势特征。结果表明：近50 a研究区气温有上升趋势，气候倾向率为0.23℃/10a，年平均气温在20世纪90年代末发生突变。春秋季平均气温分别在2002年和1999年发生突变，夏季平均气温在2006年发生突变，冬季平均气温早在1990年发生突变。春季与秋季平均气温的变化比较一致，冬季平均气温对全球变暖响应最敏感，春秋与秋季对气候变暖的响应是比较敏感，而夏季对气候变暖的响应最为迟缓。近50 a年降水量呈波动但无明显增降的趋势，其中春夏两季变化趋势较为一致并有下降的趋势，且春夏降水量的变化主导着年降水量的变化；而冬季降水量有上升的趋势。通过对气温与降水变化趋势的比较，发现冬季对气候变化的响应最显著、其余季节无明显相关性。
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| 关 键 词： | 气温 降水 气候倾向率 气候突变 |
Characteristics of climate change from 1960 to 2009 in Xianning, Hubei province |
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| LIU Meng QI Shi-hua YUAN Lin-xi.Characteristics of climate change from 1960 to 2009 in Xianning, Hubei province[J].Journal of Meteorology and Environment,2012,28(1):71-76. |
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| Authors: | LIU Meng QI Shi-hua YUAN Lin-xi |
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| Institution: | School of Environment Studies, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | Based on the observational data from three meteorological stations in Xianning from 1960 to 2009, the annual, seasonal and inter-decadal variation trends of the main climatic elements such as air temperature and precipitation were analyzed. The results indicate that air temperature is in an increasing trend in recent 50 years in the study area, and the climatic tendency rate is 0.23 ℃/decade. There is an abrupt change in the late of 1990s for the mean annual air temperature. For the seasonal air temperature, the abrupt changes in spring, autumn, summer and winter occur in 2002, 1999, 2006 and 1990 respectively. The changes of the mean air temperature in spring and autumn are consistent. The response of winter air temperature to the global warming is the most sensitive, and then spring and autumn air temperatures, while the response of summer air temperature to the global warming is not sensitive. Precipitation fluctuates in recent 50 years, while its change in trend is not significant. Spring and summer precipitations are in the decreasing trends and the both dominate the changes of annual precipitation, while winter precipitation is in an increasing trend. By comparison of changes in air temperature and precipitation trends, it has been found that the response of these variables to the climate change is the most significant in winter, and the responses in other seasons are not significant. |
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| Keywords: | Air temperature Precipitation Climate tendency rate Abrupt climate change |
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