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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (29): 251-255.doi: 10.11924/j.issn.1000-6850.2014-0263

所属专题： 农业气象

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本溪市区近59年极端气温气候特征及其变化分析

邢刚,魏海宁,韩笑,黄作顺,李西平,何平   

  1. 本溪市气象局,辽宁省本溪市气象局,本溪市气象局,本溪市气象局,本溪市气象局,本溪市气象局
  • 收稿日期:2014-01-26 修回日期:2014-01-26 接受日期:2014-04-15 出版日期:2014-10-31 发布日期:2014-10-31
  • 通讯作者: 魏海宁

Climate Characteristic and Change of Extreme Temperature in Benxi City in Recent 59 Years

  • Received:2014-01-26 Revised:2014-01-26 Accepted:2014-04-15 Online:2014-10-31 Published:2014-10-31

摘要： 为了分析在全球气候变暖的背景下，中国东北部平原和山地交界处极端气温事件的变化特征，根据本溪市国家基本气象站的逐日最高、最低气温资料，采用相关系数法和对比分析法，分析了1955—2013 年59 年间本溪市区极端最高气温和极端最低气温的气候特征及其气候变化。结果表明：本溪市区年极端最高气温为37.5℃，极端最低气温为-34.5℃；极端气温年较差最大为70.6℃，最小为51.6℃；年极端最高气温出现在5—9 月，8 月最多，占35.6%；极端最低气温出现在12—2 月，1 月最多，占69.5%。日极端最低气温多出现在4—7时，日极端最高气温多出现在14—16时。总体来看，本溪市区成变暖趋势，极端最高气温无明显变化，极端最低气温呈上升趋势，气温年较差在缩小，但这种变化并不显著。

关键词: 制度创新, 制度创新

Abstract: The study aims to analyze the variation characteristics of extreme weather events at the junction of China northeast plain and mountain under the background of global warming. Based on the homogeneous daily extreme maximum and extreme minimum temperature data in Benxi City, the climatic character and change of it’s extreme minimum temperature and extreme maximum temperature in 1955-2013 were analyzed by using the correlation coefficient method and contrast analysis method. The result showed that the extreme maximum temperature was 37.5℃in Benxi City, and extreme minimum temperature was -34.5℃。Its annual range of extreme temperature was large, with the highest of 70.6℃and the lowest of 51.6℃. The annual extreme maximum temperature occurred in May, June, July, August and September, and mostly in August, the annual extreme minimum temperature occurred in December, January and February. The daily lowest temperature occurred at 4:00-7:00, and the daily highest temperature occurred at 14:00-16:00. Overall, Benxi City was warming, the extreme maximum temperature had no obvious change and the extreme minimum temperature showed an upward trend, annual temperature range was the narrowing, but the change was not significant.