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      氣候變化研究進展 ?? 2007, Vol. 03 ?? Issue (05): 293-298.

      ? 研究短論 ? 上一篇    下一篇

      全球增暖背景下2050年前長江流域氣候趨勢預(yù)估

      曾小凡 蘇布達 姜彤 陳正洪   

      1. 中國科學(xué)院 南京地理與湖泊研究所 中國氣象局國家氣候中心 中國科學(xué)院 南京地理與湖泊研究所 武漢區(qū)域氣候中心
      • 收稿日期:2006-09-22 修回日期:2006-11-16 出版日期:2007-09-30 發(fā)布日期:2007-09-30
      • 通訊作者: 曾小凡

      Projection of Future Climate Change in the Yangtze River Basin for 2001-2050

        

      • Received:2006-09-22 Revised:2006-11-16 Online:2007-09-30 Published:2007-09-30

      摘要: 根據(jù)ECHAM5/ MPI-OM模式對長江流域21世紀(jì)前半葉氣候變化的預(yù)估數(shù)據(jù),分析了全流域、上游地區(qū)和中下游地區(qū)未來氣候變化趨勢。結(jié)果表明,長江流域氣溫將持續(xù)升高,尤其7-8月升溫趨勢明顯,年平均溫度升高最大幅度為2.60℃;全流域7月降水將增加,8月降水有減少趨勢,未來夏季降水更加集中,不僅會增加洪澇災(zāi)害的發(fā)生機率,也有可能導(dǎo)致旱災(zāi)的發(fā)生。

      關(guān)鍵詞: 氣候變暖, 長江流域, 預(yù)估

      Abstract: The possible climate changes for three emission scenarios (SRES A2, A1B, B1) were projected by ECHAM5/ MPI-OM. Based on the projected data, possible temperature and precipitation changes during 2001-2050 in the Yangtze River basin were analyzed. The results show that, temperature would rise mostly in July and August for the whole basin, and precipitation in July would have an increasing tendency while a decreasing tendency in August. Based on the results, temporal distribution of summer precipitation would be more concentrated, which maybe aggravate both flood and drought disasters in the future.

      Key words: climate warming, the Yangtze River basin, projection

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