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      氣候變化研究進(jìn)展 ?? 2008, Vol. 4 ?? Issue (003): 182-186.

      ? 研究短論 ? 上一篇    下一篇

      貴州夏季暴雨的氣候特征

      張艷梅 江志紅 王冀 劉毅   

      1. 六盤(pán)水市氣象局氣象臺 南京信息工程大學(xué) 南京信息工程大學(xué)
      • 收稿日期:2007-06-01 修回日期:2008-01-31 出版日期:2008-05-31 發(fā)布日期:2008-05-31
      • 通訊作者: 張艷梅

      Climate Characteristics of Summer Rainstorm in Guizhou

      Zhang Yanmei Jang Zhihong Wang Ji   

      1. Liupanshui Meteorological Bureau of Guizhou Province Nanjing University of Information Science & Technology Nanjing University of Information Science & technology
      • Received:2007-06-01 Revised:2008-01-31 Online:2008-05-31 Published:2008-05-31
      • Contact: Zhang Yanmei

      摘要: 利用貴州52個(gè)測站的1961-2006年歷年夏季(6-8月)逐日降水資料,分析了貴州夏季暴雨的時(shí)空分布特征、周期振蕩及其突變特征。結果表明:46 a來(lái)貴州夏季暴雨量呈增加趨勢,并存在明顯的年際、年代際變化特征;暴雨日數和暴雨量在1985年發(fā)生突變;暴雨日數和暴雨量均存在15 a和準10 a的周期振蕩;暴雨日數和暴雨量EOF分解的第一特征向量的荷載場(chǎng)空間分布基本一致,表明全省呈偏多(少)的一致型同位相分布。

      關(guān)鍵詞: 貴州, 暴雨, 時(shí)空分布, 氣候特征

      Abstract: Based on the daily precipitation data in summer (JJA) for the period from 1961 to 2006 at 52 observation stations, temporal and spatial characteristics, periodical variations and abrupt changes of summer rainstorm in Guizhou were investigated. The results indicate that rainstorm precipitation increased in the past 46 years and its interannual and decadal variations were remarkable . The abrupt changes in the rainstorm precipitation and day number both occurred in 1985. There were periodical variations of 15 years and quasi-10 years in both summer rainstorm precipitation and day number. The first EOF eigenvector field of summer rainstorm day number was consistent with that of summer rainstorm precipitation, showing consistent in-phase distribution of rainstorm in Guizhou.

      Key words: Guizhou, rainstorm, temporal and spatial characteristics, climate characteristics

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