Application of Non-Conventional Observational Data to Local Heavy Rain Analysis
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Abstract:
By means of several nonconventional observational data, a local severe convective weather even on June 27 2006 in Beijing is studied. The results show that two mesoscale convective cloud clusters and the surface mesoscale convergence line played the triggering role in the heavy rain process, and the urban heat island provided the thermodynamic condition. The measurements of the groundbased 12channl microwave radiometer have good indicative significance to the occurrence of heavy rainfall. The rapid increase (decrease) of Liquid Water Content can be used as an indicator in forecasting the beginning (ending) of heavy rainfall. The continuous observation data from wind profile radar can provide detailed information about a convective system partly, such as the lower and middlelevel wind shears, warm advection, and smallscale lowpressure systems, which are of significance to the formation and maintenance of heavy rainfall.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.