又称大气边界层。旋转地球大气的湍流边界层，其厚度从几百米至1.5～2.0千米，平均为1千米。因其包围旋转的地球（行星）而得名。
用MM5对长江流域的一次暴雨进行模拟考察其对行星边界层参数化的敏感性。
MM5 was employed to investigate the sensitivity of the simulation to the planetary boundary layer (PBL) parameterizations through the simulation of a rainstorm over the Yangtzi River Basin.
本文利用325米气象塔及声雷达探测资料分析了夜间平稳天气条件下行星边界层中风速出现多极值的现象。
In this paper, the multi-level wind velocity in the nocturnal steady state PBL is analysed, using the data of the 325 meter meteorological tower and acoustic sounder.
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