国产综合在线观看视频,国产精品原创视频,亚洲国产熟亚洲女视频,一级风流片a级国产

       

      氣候變化研究進(jìn)展 ?? 2010, Vol. 6 ?? Issue (05): 349-355.

      ? 氣候系統變化 ? 上一篇    下一篇

      1969-2008年海南省霧的氣候特征與變化趨勢

      張春花1,吳勝安,林建興1,許向春2,郭冬艷1   

      1. 1. 海南省氣象臺2. 海南省氣象科學(xué)研究所
      • 收稿日期:2009-12-24 修回日期:2010-02-09 出版日期:2010-09-30 發(fā)布日期:2010-09-30
      • 通訊作者: 張春花

      Climatological Characteristics and Trends of Fogs in Hainan Province

      Shengan Wu   

      • Received:2009-12-24 Revised:2010-02-09 Online:2010-09-30 Published:2010-09-30

      摘要: 利用海南省1969-2008年觀(guān)測資料,對海南霧的時(shí)空分布氣候特征及變化趨勢進(jìn)行分析,并利用觀(guān)測的最低氣溫、相對濕度資料和NCEP/NCAR再分析資料對海南霧日數變化的成因加以分析。結果表明,海南霧日數在中部山區出現最多,其次是北部地區,南半部沿海地區則極少有霧出現;霧主要出現在9月至翌年3月,年霧日數呈減少趨勢;最低氣溫升高是引起霧日數減少的主要原因,霧日數的減少與相對濕度的減小也是一致的;秋冬和初春季節夜間氣溫低,有利于霧的形成;海拔越高的地區,氣溫越低,則生成的霧越多;霧日數顯著(zhù)偏多年份850 hPa大陸高壓偏弱,偏少年份偏強;霧日數顯著(zhù)偏多年份500 hPa西太平洋副高強度偏弱,范圍偏小,偏少年份則相反。

      關(guān)鍵詞: 霧, 氣候特征, 變化趨勢, 成因

      Abstract: Climatological characteristics of the spatio-temporal distribution and change trend of fog days in Hainan Province were analyzed based on the observational data of Hainan in 1969-2008, and the causes for changes in fog days were also analyzed based on the NCEP/NCAR reanalysis data and meteorological factors. The results show that the fog days was the most in the central mountainous area, the next in the northern coastland, and the least in the southern coastland; and yearly fog days exhibited a decreasing trend. Analysis also indicates that yearly fog days was negatively closely correlated with average minimum temperature and positively correlated with relative humidity. Fogs formed more frequently and successively in autumn, winter and early spring. The regions with a higher altitude or a lower temperature had more fog days. In the years when fog days was more than normal, the 850 hPa continental high was relatively weaker, and the 500 hPa subtropical high was relatively weaker too; and vice versa in less fog days years.

      Key words: fog, climatological characteristics, change trend, cause

      京ICP備11008704號-4
      版權所有 © 《氣候變化研究進(jìn)展》編輯部
      地址:北京市海淀區中關(guān)村南大街46號 郵編:100081 電話(huà)/傳真:(010)58995171 E-mail:accr@cma.gov.cn
      本系統由北京瑪格泰克科技發(fā)展有限公司設計開(kāi)發(fā) 技術(shù)支持:support@magtech.com.cn