Formation Mechanisms and Forecasting of Severe Convective Weather in Zhengzhou
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Abstract:
An analysis is made of the main causes, weather patterns, singlestation influencing factors and physical parameters of four severe convective weather events in 2004 in Zhengzhou by using routine meteorological data and 1°×1° reanalysis data of NCEP. The results show that it is favorable to the occurrence of severe convective weather that there is radiative warming at lower levels and coldadvection cooling at upper levels while under the control of northwest air flow or the North China low, in which convective energy increases quickly. The mesoscale convergence line appeared on the surface three hours ahead is the triggering mechanism of severe convection weather. The vertical distribution characteristics of singlestation 〖WTBX〗θ〖WTBZ〗se, atmospheric entropyremoving index, vertical wind shear, precipitable water, etc., can be used to judge the type of severe convection weather.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.