| 边界层风场调整的分析 |
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| 引用本文： | 冯凯,王嵘. 边界层风场调整的分析[J]. 大气科学学报, 1994, 17(4): 508-511 |
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| 作者姓名： | 冯凯 王嵘 |
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| 作者单位： | 南京气象学院大气物理学系, 南京, 210044;南京气象学院大气物理学系, 南京, 210044 |
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| 摘 要： | 分析任意气压场在中性、非线性正压边界层中风场的调整问题。结果表明:任意初始风场,将向给定的气压调整。具休调整过程是通过绝对涡度振荡及粘性系数的耗散,其调整的时间尺度为[O(t(-3/2))],比自由大气地转适应时间尺度[O(t(-1))]快。
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| 关 键 词： | 边界层 风场 调整 |
| 收稿时间： | 1993-06-22 |
| 修稿时间： | 1993-09-20 |
ON PBL WIND ADJUSTMENT |
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| Feng Kai and Wang Rong. ON PBL WIND ADJUSTMENT[J]. Transactions of Atmospheric Sciences, 1994, 17(4): 508-511 |
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| Authors: | Feng Kai and Wang Rong |
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| Affiliation: | Department of Atmmospheric Physics, NIM, 210044, Nanjing, PRC;Department of Atmmospheric Physics, NIM, 210044, Nanjing, PRC |
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| Abstract: | The paper is devoted to the problem of the role of an presstire field in the adjustment of the wind in a neutral nonlinear barotropic planetary boundary layer(PBL);Evidence suggests that any initial wind field will adjust itself towards a given pressure pattern through absolute vorticity oscillation and viscous coefficient dissipation,leading to the adjustment time scale[O(t(-3/2))],faster than[O(t(-1)] for quasi geostrophic adaptation in the free atmosphere. |
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| Keywords: | boundary layer wind field adjustment |
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