| 西南低涡Ekman层流场特征分析 |
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| 引用本文： | 解明恩,琚建华,等.西南低涡Ekman层流场特征分析[J].高原气象,1992,11(1):31-38. |
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| 作者姓名： | 解明恩 琚建华 |
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| 作者单位： | [1]云南省气象台，云南省昆明市650034 [2]云南大学地球科学 |
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| 摘 要： | 本文利用大气边界模式，对1979年7月24－25日的一次西南低涡暴雨进行了Ekman层的流场分析。在理论计算的前提下，通过加入有限的实测风资料进行动力学调整，不仅在Ekman层中能较好地模拟出高层（850，700hPa）气旋环流特征，且发现西南低涡笔星边界层具有中尺度扰动的特征。在整个气旋环流中有局部的反气旋环流出现，这是850，700hPa 天气图上得不到的，且与边界层诊断分析相符合。
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| 关 键 词： | 西南低涡 大气边界层模式 Ekman层 流场 气旋环流 |
THE CHARACTERISTIC ANALYSIS OF EKMAN LAYER'S STREAMLINE FIELDS OF SOUTHWEST VORTEX |
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| Xie Mingen.THE CHARACTERISTIC ANALYSIS OF EKMAN LAYER''''S STREAMLINE FIELDS OF SOUTHWEST VORTEX[J].Plateau Meteorology,1992,11(1):31-38. |
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| Authors: | Xie Mingen |
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| Abstract: | In this paper, Ekman layer s streamline fields of a Southwest Vortex from 24 to 25 July 1979 are analysised by using a atmosphere boundary layer model. Based on the theoretical calculation, dynamical adjustment has been done by adding limited practical pibal data. The characteristics of cyclone circulation in high layers (850 hPa, 700 hPa) in Ekman layer are well simulated, and the meso-scale disturbance characteristics in planetary boundary layer in Southwest Vortex are found. There is a part of anticyclone in the whole cyclone. All above can't be obtained in the weather map of 850 hPa and 700 hPa, and these are in correspondence with diagnostic analysis. |
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| Keywords: | Southwest Vortex Boundary layer model Ekman layer Streamline fields |
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