首页> 中文期刊> 《海洋预报》 >海面风应力拖曳系数参数化方案对风暴潮数值模拟的影响

海面风应力拖曳系数参数化方案对风暴潮数值模拟的影响

         

摘要

To compare the effects of different sea surface wind stress drag coefficient parameterization schemes,nine kinds of schemes were used in numerical simulation of fifteen storm surges induced by tropical cyclones near Zhanjiang Sea. The result indicates that the effects of numerical simulation are not completely same in different parameterization schemes and it is necessary that the proper scheme is selected in numerical simulating storm surge. The simulation errors of storm surge maximum are smaller in Sm80 and YT98 schemes, and it also indicates it is feasible to extraplant in high wind speed of tropical cyclone in the two schemes. Additionally, under the conditions of selecting proper parameterization schemes of sea surface wind stress drag coefficient, the simulating effect of stronger storm surges are better in using the storm surge model.%为了比较不同的海面风应力拖曳系数参数化方案在风暴潮数值模拟中的效果,采用9种不同的风应力拖曳系数参数化方案对湛江附近海域15个热带气旋风暴潮进行数值模拟.模拟结果表明,不同风应力拖曳系数参数化方案对热带气旋风暴潮增水最大值的数值模拟效果不完全相同,在风暴潮数值模拟中要选择合适的风应力拖曳系数参数化方案;文中Smith(1980)、Yelland和Taylor(1998)风应力拖曳系数参数化方案增水最大值模拟的误差较小,这也说明两种参数化方案在风暴潮数值模拟中外推到热带气旋高风速范围内是可行的.另外,数值模拟结果也表明,在选择合适海面风应力参数化方案情况下,文中采用的风暴潮模式对强热带气旋增水的数值模拟效果较好.

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