Hydroclimate Analysis of Severe Floods in China’s Poyang Lake Region
Hydroclimate Analysis of Severe Floods in China’s Poyang Lake Region
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DOI：
10.1175/2012ei000455.1
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发表时间：
2012-12
影响因子：
2
通讯作者：
D. Shankman;B. Keim;T. Nakayama;R. Li;Dunyin Wu;W. C. Remington
中科院分区：
文献类型：
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作者：
D. Shankman;B. Keim;T. Nakayama;R. Li;Dunyin Wu;W. C. Remington
摘要江西鄱阳湖是中国最大的淡水湖，也是历史上洪水频繁的地区。在过去的几十年里，由于堤坝建设减少了可用于洪水储存的面积，最大年湖泊水位和严重洪水事件的数量有所增加。1950年以来最严重的洪水发生在1954年、1973年、1983年、1995年和1998年。每一次洪水都是在厄尔尼诺事件之后发生的，厄尔尼诺事件影响了亚洲季风，并与长江流域的降雨直接相关。1954年的洪水是20世纪90年代之前有记录以来最大的洪水。该年湖口长江水位最高点为21.6米，比前一个历史最高点高出1.6米。长江上一次大洪水发生在1998年，当时长江水位达到22.5米，高于1954年，尽管洪峰流量较低。最严重的洪水，包括1954年和1998年的洪水，都需要1）高降雨量和支流排入P.
AbstractPoyang Lake in Jiangxi Province is the largest freshwater lake in China and is historically a region of significant floods. Maximum annual lake stage and the number of severe flood events have increased during the past few decades because of levee construction that reduced the area available for floodwater storage. The most severe floods since 1950 occurred during 1954, 1973, 1983, 1995, and 1998. Each of these floods followed El Nino events that influence the Asian monsoon and that are directly linked to rainfall in the Changjiang (Yangtze River) basin. The 1954 flood was the largest ever recorded until the 1990s. That year the peak Changjiang stage at Hukou was 21.6 m, which was 1.6 m above the previous record high. The last major flood on the Changjiang was during 1998, when the peak Changjiang stage reached 22.5 m, higher than during 1954, even though peak discharge was lower. The most severe floods, including those in 1954 and 1998, require both 1) high rainfall and tributary discharge into P...