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南海风暴潮对风场和外围海水敏感性研究
李健, 刘清容, 阮成卿, 訚忠辉, 冀承振
国家海洋局北海预报中心
摘要:
为探索来自西北太平洋台风风暴潮与南海局地生成台风风暴潮不同,本文在假设两种台风气象条件相同情况下,研究随台风而来外围海水所形成增水对南海沿岸的影响。以0814“黑格比”强台风风暴潮为基础,使用ROMS模式进行数值模拟并通过设计对比试验方法进行研究,研究发现在台风登陆时引起的增水最大,最大增水出现在台风路径右侧,其中在沿岸区域,外围海水形成增水约占总增水10%,且大约3小时后出现增水回震现象。同时,本文设计敏感性试验,研究来自西北太平洋台风风暴潮对台风路径、台风强度、台风移动速度和流入角等气象条件敏感性,并获得与前人一致的结果。
关键词:  风暴潮,移动路径,流入角,外围海水
DOI:10.11759/hykx20160923001
分类号:O141.4;P444
基金项目:中国科学院海洋环流与波动重点实验室开放研究基金(KLOCW1608);北海分局科技项目(2015B06)
Study of storm surge sensitivity with typhoon and external seawater in the south China sea
LI Jian, LIU Qing-rong, RUAN Cheng-qing, YIN Zhong-hui, JI Cheng-zhen
North China Sea Marine Forecasting center of State Oceanic Administration
Abstract:
In order to explore different of storm surge between generated from the Pacific Northwest and generated in the South China Sea, we study external seawater influence to storm surge of the South China Sea coast if the same as meteorologic condition. Used ROMS to simulate and research the external seawater by comparative test, the results shows the maximum surge appear at the moment of typhoon landing and on the right of typhoon path. Accounting for about 10% of the total surge,the external seawater will come back after 3 hours. At the same time, different model results shown the same as others conclusion that compared on storm surge, which includes typhoon moving paths, change of typhoon strength, increasing of typhoon moving speed, different inflow angle and evolution of external seawater.
Key words:  storm surge  typhoon moving paths  inflow angle  external seawater
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