Application of Thermal Wind Helicity to Diagnosis of Severe Weather
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Abstract:
The relationship between thermal wind helicity and severe convective weather is analyzed by calculating the helicity from 1000 hPa to 100 hPa, 1 to 31 July 2006 at Datong of Shanxi Province. The result shows that there was a high value center of thermal wind helicity before the severe weather occurred, and the higher the value was, the severer the weather was. This center appeared 6 hours before severe weather occurred. The thermal wind helicity can be used as an indicator in forecasting severe weather.
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Clc Number:
P457.8 U674.310.3
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.