日本海极地低压的个例研究-海洋预报

日本海极地低压的个例研究

单位：国家海洋环境预报中心北京 100081

分类号：P731

出版年·卷·期（页码）：2007·2007·第三期（31-39）

摘要：

本文分析了日本海发生的一次极地低压的水平结构和垂直结构,极地低压的"眼"处几乎无云,由螺旋状云系环绕,并伴有较强的下沉气流,具有暖核结构。热力学收支表明,该暖核主要是由伴随下沉气流的绝热增暖造成的。

This article analyses the structures both in the vertical and in the horizontaldimensions of a polar low event that occurred over the Japan Sea.The"eye"is occupiedby a dry air,surrounded by spiral cloud patterns and associated with a strong downdraft,has a warm core,and is almost free of cloud.The thermodynamic budget analysis indicatethat this "warm core"is mainly caused by the adiabatic warming associated with the downdraft.

参考文献：

[1] Fu Gang.Polar Lows,Intense Cyclones in Winter (in English) 2001,4～13,84～87,115～127.

[2] Douglas,Michael W,L S Fedor,M A Shapiro.Polar Low Structure over the Northern Gulf of Alaska Based on Research Aircraft Observations.Monthly Weather Review.1991,119 (1).

[3] Montgomery,Michael T,Brian F,Farrell.Polar Low Dynamics.Journal of the Atmospheric Sciences:1992,49 (24).

[4] Bresch James,F,Richard J Reed,Mark D.Albright.A Polar-Low Development over the Bering Sea:Analysis,Numerical Simulation,and Sensitivity Experiments.Monthly Weather Review.1992,125 (12).

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