supercell?!

4/14/2006 ·

當年看了幾篇有關 MCCs的文章,首推 MADDOX 的 Mesoscale convective complexes 這篇 Dr. Bill Kuo 也推薦,要認識中尺度對流的人一定要看。

Mesoscale convective complexes
MADDOX, R A
American Meteorological Society, Bulletin. Vol. 61, pp. 1374-1387. Nov. 1980
http://0rz.net/5e1f7

關於suppercell的定義,隨手查了一下:

1)Structure and dynamics of suppercell thunderstorms
http://www.crh.noaa.gov/lmk/soo/docu/supercell.php

2)FORECASTING SUPERCELL TYPE
by Richard Thompson and Roger Edwards
http://www.stormtrack.org/library/forecast/sctype.htm

3)Types of Thunderstorms
http://www.mcwar.org/articles/types/tstorm_types.html
In order to form a supercell, three ingredients are necessary: high thermal instability, strong winds in the middle and upper troposphere, and veering of the wind with height in the lowest kilometer.
...

4)What is a supercell?
http://www.cimms.ou.edu/~doswell/Conference_papers/SELS96/Supercell.html
Charles A. Doswell III
Norman, Oklahoma
...That definition is that a supercell is a convective storm that possesses a deep, persistent mesocyclone. By "deep" I mean that the circulation meeting mesocyclone criteria is present and vertically connected through a significant (say, 1/3) fraction of the depth of the convective storm. By "persistent" I mean in comparison to a convective time scale defined by the time it takes a parcel to rise from the base of the updraft to its top (on the order of 10-20 min). A "mesocyclone" can be defined in many ways; I prefer to use the vorticity magnitude, where a "mesocyclonic vorticity unit" is 10-2 s-1.

結論:
suppercell不能光看雲圖面積,還有垂直風切、降雨、熱力作用等等條件才能成立。
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按: 本文轉載自 P_mph板@wretch,
回應 Waitingchen 之 supercell?! 一文,于Fri Apr 14 11:15:46 2006

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