Study of the total lightning activity in a hailstorm
A thunderstorm which developed in North-Eastern region of Spain on 16th June, 2006 is analyzed. This thunderstorm could be severe because it produced hailstones larger than 19 mm. The cell life time was 3h 30 minutes. Radar cross-sections show a strong vertical development with cloud tops reaching an altitude of 13 km. During the first 3 h, in its mature stage, cloud-to-ground (CG) flash rates remained very low (under 1 min -1 ) with sometimes slightly dominant positive CG flashes. The maximum intra-cloud (IC) flash rate (67 min -1 ) peaked 24 minutes before the presence of reflectivity higher than 60 dBZ. During high reflectivity within the cloud the IC activity abruptly decreased. The maximum reflectivity observed by radar was consistent with the reported hail at ground.
Joan Montanyà Serge Soula Nicolau Pineda Oscar van der Velde Pere Calpers Gòria Solà Joan Bech D.Romero
Electrical Engineering Department, Technological University of Catalonia, Terrassa, 08222, Spain Laboratoire dAérologie, UMR 5560 UPS/CNRS, OMP, Toulouse, France Catalan Meteorological Service, Barcelona, Spain
国际会议
第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)
北京
英文
2007-08-13（万方平台首次上网日期，不代表论文的发表时间）