Characteristics of Lightning and Radar Echoes of Two Thunderstorms
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Abstract:
Lightning, rainfall, and radar features of two thunderstorms in Nantong in 2009 are analyzed in detail with the data from the lightning location system, Doppler radar, radiosondes and rainfall data. Results show that lightning strokes mainly concentrated within the strong radar echo area, especially in the area of over 40 dBz radar echo, while some, in particular positive lightning, occurred on the edge of strong area or the weak area. The echo height of 40dBz echo reached the -10 ℃ level before the first lightning, being consistent with the variation of lightning frequency. The area of radar echo more than 40 dBz varied with the frequency of lightning strokes almost simultaneously, and the lightning frequency decreased during the rainfall though the echo area was big. There was good correlation among the frequency of lightning strokes happened around 20 km and the hourly average area of radar echo more than 40dBz.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.