| 1951—2008年吉林市气候变化特征 |
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| 引用本文： | 徐兴波,韩庆红,任晓峰,高玉龙.1951—2008年吉林市气候变化特征[J].气象科技,2011,39(5):575-581. |
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| 作者姓名： | 徐兴波 韩庆红 任晓峰 高玉龙 |
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| 作者单位： | 1. 吉林省吉林市气象局,吉林,132013
2. 湖北省黄冈市气象局,黄冈,438000 |
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| 摘 要： | 应用滑动平均、滑动变异系数等方法对吉林市1951-2008年气温和降水量进行了分析.结果发现:吉林市气温旱上升趋势,平均气温增温速率比全国高0.10℃/10a,但比东北区低0.03℃/10a；降水总体旱减少的趋势,春季降水有增长的趋势,夏季降水目前处于少雨段,秋季降水变化不明显,冬季降雪呈逐渐递增的趋势；降水的变率明显...
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| 关 键 词： | 气候变化 气温趋势 降水趋势 气候异常 |
| 收稿时间： | 2010/5/31 0:00:00 |
Tends of Climate Change in Jilin from 1951 to 2008 |
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| Xu Xingbo,Han Qinghong,Ren Xiaofeng and Gao Yulong.Tends of Climate Change in Jilin from 1951 to 2008[J].Meteorological Science and Technology,2011,39(5):575-581. |
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| Authors: | Xu Xingbo Han Qinghong Ren Xiaofeng and Gao Yulong |
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| Institution: | Jilin Meteorological Service, Jilin Province, Jilin 132013;Jilin Meteorological Service, Jilin Province, Jilin 132013;Jilin Meteorological Service, Jilin Province, Jilin 132013;Huanggang Meteorological Service, Hubei Province, Huanggang 438000 |
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| Abstract: | With the methods of moving average and moving variance,an analysis is made of the temperature and precipitation over Jilin from 1951 to 2008.The results show that temperature over Jilin tends to ascend,with the average temperature ascending speed being 0.10 ℃/10a greater than that over the whole China,but 0.03 ℃/10a lower than that over Northeast China.Annual precipitation tends to decrease overall.Precipitation in spring shows a tendency of ascending,while precipitation in summer shows a decreasing tendency at present.There is no obvious change in precipitation in autumn,and there is a gradual increase tendency in snowy in winter.The variability of precipitations was obviously greater than that of temperature,and the variability of snow in winter was obviously greater than that of rainfall in summer.The analysis of NCEP data shows that the trough of East Asia lasted for a longer time in cold winters,while the trough of East Asia was weaker and a little eastward in warm winters.In wet years,the subtropical high over West Pacific was stronger and more northward,and there was a significant abnormal low in the areas around Lake Baikal,with the strong farther southern flow over Northeast China. |
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| Keywords: | temperature precipitation climate change abnormal |
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