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      氣候變化研究進(jìn)展 ?? 2007, Vol. 03 ?? Issue (06): 368-372.

      ? 研究短論 ? 上一篇    下一篇

      1951-2006年三峽庫(kù)區(qū)夏季氣候特征

      廖要明 張強(qiáng) 陳德亮   

      1. 中國(guó)氣象局國(guó)家氣候中心 國(guó)家氣候中心
      • 收稿日期:2006-12-06 修回日期:2007-01-09 出版日期:2007-11-30 發(fā)布日期:2007-11-30
      • 通訊作者: 廖要明

      Summer Climate Characteristics in the Three Gorges Area During 1951-2006

        

      • Received:2006-12-06 Revised:2007-01-09 Online:2007-11-30 Published:2007-11-30

      摘要: 以重慶市的沙坪壩、涪陵、萬(wàn)州、奉節(jié)和湖北省的宜昌5個(gè)站為代表,從降水、氣溫、日照、風(fēng)速和蒸發(fā)等5個(gè)要素系統(tǒng)地分析了三峽庫(kù)區(qū)1951-2006年夏季的氣候變化特征。結(jié)果表明:三峽庫(kù)區(qū)夏季降水量總體呈增加趨勢(shì),特別是在20世紀(jì)70年代末發(fā)生了一次明顯躍變;最高氣溫、平均氣溫、日照時(shí)數(shù)以及蒸發(fā)量等總體呈下降趨勢(shì),在20世紀(jì)80年代初發(fā)生了一次明顯躍變;平均最低氣溫和平均風(fēng)速的變化趨勢(shì)不明顯,但所有氣候要素均表現(xiàn)出明顯的年代際變化特征。

      關(guān)鍵詞: 三峽庫(kù)區(qū), 降水, 溫度, 日照, 蒸發(fā)量, 氣候變化

      Abstract: Based on historical records of precipitation, temperature, sunshine duration and wind speed at 5 stations including Chongqing, Fuling, Wanzhou, Fengjie and Yichang, the changes in these climate elements in summer over the Three Gorges area during 1951-2006 were analyzed. Results show that the regional average of summer precipitation had an overall increasing trend and a jump change occurred in the end of the 1970s. Meanwhile, maximum temperature, mean temperature, sunshine duration and water surface evaporation had a declining trend and a jump change happened in the early 1980s. At the same time, minimum temperature and wind speed did not have an obvious trend. All of these variables showed obvious decadal variations.

      Key words: Three Gorges area, precipitation, temperature, sunshine duration, wind speed, evaporation, climate change

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