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海洋飞沫对热带气旋边界层结构的影响

DOI: 10.3969.issn.0253-4193.2014.09.010, PP. 84-93

Keywords: 海洋飞沫,热带气旋,Morakot,边界层,参数化方案

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Abstract:

将海洋飞沫参数化引入到一个高分辨率、非静力中尺度WRF模式中,对0908号热带气旋Morakot进行数值模拟,探讨了海洋飞沫对热带气旋Morakot边界层结构和强度的影响。模拟结果表明:采用新参数化后,对热带气旋Morakot的强度预报有改进,但对热带气旋移动路径改进不大;其次,通过对边界层过程的改进,使得眼墙区域的平均径向风速、切向风速、温度、相对湿度、垂直风速、热通量,降水等物理量均有增强,各物理量的贡献对热带气旋Morakot强度和结构变化的影响十分重要。

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