| 通辽市近50年气候变化分析 |
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| 引用本文： | 王俊,申广立,李春云,刘亚玲,姜秀萍,夏莹.通辽市近50年气候变化分析[J].内蒙古气象,2010(6):18-22. |
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| 作者姓名： | 王俊 申广立 李春云 刘亚玲 姜秀萍 夏莹 |
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| 作者单位： | [1]通辽市气象局,内蒙古通辽028000 [2]开鲁县气象局,内蒙古开鲁县028400 |
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| 摘 要： | 利用通辽市7个气象台站1959—2008年平均气温、降水量、日照时数资料,用趋势分析和累积距平、信噪比、F检验等方法,分析通辽市近50年的气候变化特征。结果表明：（1）年平均气温上升趋势显著,近50年增温1.9℃,且通过0.001显著检验,突变发生在1988年,近10年是最温暖时期。其中南部、西部升温较少,北部、东部升温较多。四季均温变化与年均温趋势一致,但略有差异。增温幅度最大为冬季,其次为春季,最小为夏季;突变时间最早为秋季、发生在1987年,最晚为夏季、发生在1994年。（2）年降水量呈减少趋势,近50年约减少71mm,且通过0.10信度检验,南部的库伦和北部的鲁北减少最为显著。四季降水量的变化不同步,夏、秋季减少,冬、春季稍有增加。年降水量呈阶段性变化,目前是降水量最少时期。年日照时数西南部及扎旗北部是增多的,其余地区明显减少。
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| 关 键 词： | 气候变化 气温 降水量 日照时数 趋势 地区差异 |
Analysis on Climate Change of Tongliao in Recent 50 Years |
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| Authors: | Wang Jun Sheng Guangli Li Chunyun Liu Yaling Jing Xiuping Xia Ying |
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| Institution: | 1 Tongliao Meteorological Bureau,Inner Mongolia Tongliao 028000; 2.Kailu Meteorological Bureau,Inner Mongolia Kailu 028400) |
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| Abstract: | Using the data of annual average temperature,annual rainfall,sunshine hour of 7 meteorological stations in Tongliao from 1959 to 2008 years,the climate change feature was analyzed by trend analysis and cumulative anomaly,SNR,F test and other methods,in recent 50 years.Shows as a result：（1） The rising trend of annual mean temperature is obvious,there is a 1.9℃ rise in temperature in recent 50 years,and through the 0.001 significant test,mutations occurred in 1988,it is the warmest period near 10 years.The rise of temperature is less in the southern and western and more in northern and eastern.The trend of the average temperature in four seasons and the annual average temperature is consistent,but different slightly.Maximum of temperature range rise in winter,followed by spring,the minimum in summer;the earliest mutations time is in autumn,occurred in 1987,and the latest in the summer,occurred in 1994.（2） Annual precipitation submit decreasing tendency,reduced 71mm in recent 50 years,and through the 0.10 confidence level,Kulun in the southern and Lubei in northern reduced is the most significant.The change of precipitation in four seasons is out of sync,it decreases in summer and autumn,increases in winter and spring.stage change is clear,now annual rainfall is the least period.Annual sunshine hours increased in southwest and the northern of Zhaqi,the rest decreased significantly. |
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| Keywords: | climate change air temperature precipitation sunshine hour trends region differences |
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