Thresholds of Lightning Warning in Wuhan
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Abstract:
Based on the data of CINRAD in Hubei Province, the lightning location system and atmospheric electric field instrument in Wuhan area, and the statistical analysis of 1067 lightning strikes during 184 thunderstorm processes from January 2012 to July 2014, an analysis is made of the correlation between warning indexes and lightning occurrence, and the thresholds in Wuhan are determined. It is shown that the occurrence of lightning is closely related to the intensity of atmospheric electric field, radar reflectivity, height of echo top, and vertically integrated liquid: the threshold of atmospheric electric field intensity is about 2 kV/m; at -10 ℃ height, the intensity 〖WTBX〗I〖WTBZ〗≥40 dBz; the height of echo top is about 6 km; and VIL≥10 kg/m2 in Wuhan area, which are different in different months.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.