【摘要】 在装有 L inux操作系统的 PC机上运行美国大气研究中心 ( NCAR)的非静力中尺度大气模式 MM5。运用 MM5的嵌套功能 ,以 30 km水平分辨率对台风 KAI- TAK( 2 0 0 0年第 4号 )影响渤海海区的时段进行数值模拟 ,同时给出了水平分辨率为 10 km的嵌套区内逐时的渤海海面风场。通过对台风中心位置、中心气压、风速分布与雨区分布等要素的模拟结果与实况的比较 ,证实该实验对台风过程的模拟较为成功。嵌套区内渤海海面风场也明显体现出了地形影响的特征。并尝试以T10 6格点资料的三维客观分析场结合高空及地面观测为模式提供初值场 ,6h/次预报场为模式提供时变边界条件 ,对渤海海面风场进行了 2 4 h时预报更多还原

【Abstract】 Typhoon KAI TAK(number 4 of 2000) was successfully simulated by using the nonhydrostatic mesoscale atmospheric model (MM5), as proved by the comparison of central position, central pressure, the distribution of wind and precipitation of typhoon with the corresponding observations. The simulated surface winds of the Bohai Sea under the influence of the typhoon also reflect remarkable influence of the local terrain. The MM5 model was run on a PC with the installed operational system of Linux with T106 grid data and the observation data in the upper air and the ground layer obtained from the Meteorology Information Comprehensive Analysis System(MICAPS). In this paper, the twenty four hour prediction of the surface winds of the Bohai sea affected by the typhoon is also tried and tested.更多还原