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| 湛江地区旱涝特征分析 | |
| 引用本文： | 谢平,陈晓宏,王兆礼.湛江地区旱涝特征分析[J].水文,2010,30(1). |
| 作者姓名： | 谢平 陈晓宏 王兆礼 |
| 作者单位： | 1. 广东海洋大学农学院,广东,湛江,524088 2. 中山大学水资源与环境研究中心,广东,广州,510275 3. 华南理工大学土木与交通学院,广东,广州,510641 |
| 基金项目： | 国家自然科学基金项目，广东海洋大学博士启动基金项目 |
| 摘 要： | 用Z指数确定湛江月降水量的旱涝等级,并对旱涝特征进行分析,结果表明:湛江地区大涝、极涝、大旱、极旱出现的机率大.一年中,雨季的后期(9～10月)和旱季的后期(2～3月)旱涝出现的机率大;雨季的中期(6～7月)和旱季的前期(11～12月)旱涝出现的机率小.全年,涝年景比早年景多,雨季相反;全年和雨季,多数年份旱涝相继出现.50、60年代为偏旱型,70、80、90年代为偏涝型,2001～2005年为偏旱型,从70年代到2005年,湛江的旱涝表现为从偏涝型向偏旱型转变的趋势.湛江旱涝的发生有7～8、10～11、13～14个月的振荡周期. |
| 关 键 词： | 旱涝特征 Z指数 旱涝等级 湛江 |
Analysis of Drought-Flood Characteristics in Zhanjiang |
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| XIE Ping,CHEN Xiao-hong,WANG Zhao-li.Analysis of Drought-Flood Characteristics in Zhanjiang[J].Hydrology,2010,30(1). | |
| Authors: | XIE Ping CHEN Xiao-hong WANG Zhao-li |
| Institution: | XIE Ping1,CHEN Xiao-hong2,WANG Zhao-li3(1.Agricultural College,Guangdong Ocean University,Zhanjiang 524088,China,2.Center of Water Resources , Environment,Sun Yat-sen University,Guangzhou 510275,3.School of Civil , Transportation Engineering,South China University of Technology,Guang zhou 510641,China) |
| Abstract: | The characteristics of the monthly drought-flood identified with Z-index were analyzed in Zhanjiang.The results show that there is high frequency of very drought,utmost drought,very flood,utmost flood.The frequency of drought-flood is high during later phase of raining season(September and October) and later phase of drought season(February and March),is lower during middle phase of raining(June and July) and early phase of drought season(November and December).It is common that drought and flood occur in o... |
| Keywords: | characteristics of drought-flood Z-index degree of drought and flood Zhanjiang trum Akademischer Verlng [M] Germany: Heidelberg 1994 |
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