陈鹏,万凌峰,常舒捷

• 1:广东海洋大学海洋与气象学院
• 2:中国气象科学研究院
• 3:中国海洋大学海洋高等研究院

摘要(Abstract)：

【目的】研究超强台风“利奇马”快速增强过程中的海洋响应。【方法】利用中尺度WRF(The Weather Research and Forecasting)模式模拟超强台风“利奇马”，结合中国气象局热带气旋最佳路径数据集和欧洲哥白尼全球海洋物理再分析资料，分析台风在快速增强过程中的海洋响应。【结果】在台风“利奇马”快速增强过程中，海表面温度呈下降趋势，约-1.3℃/d，且降温范围向周围扩大；热带气旋路径区域海平面高度呈负异常；台风内核热带气旋热势（Tropical Cyclone Heat Potential,TCHP）显著降低，而在远离台风路径的地区TCHP会增加；海表盐度呈下降趋势，在快速增强结束时达到最低；台风中心附近出现正负速度中心交替现象，呈弧形分布向周围传播，最终消散。【结论】海表面温度和海平面高度负异常会减弱热带气旋快速增强；热带气旋快速增强过程导致的TCHP负异常也会抑制台风增强过程的发展；热带气旋快速增强前后台风内核、外围海域TCHP下降率不一致，外围的下降率在快速增强前大于内核；海表盐度的下降与台风带来的强降雨和强风有关。快速增强期间内核TCHP下降率达到最大，与海表温度、盐度以及海表面风场有良好的对应关系。

关键词(KeyWords)： 台风“利奇马”;海洋响应;WRF模式;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 广东海洋大学科研启动经费资助项目（060302032107）;; 国家自然科学基金青年基金项目（42005063）

作者(Author): 陈鹏,万凌峰,常舒捷

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