Hailstorms in southwestern France: Incidence and atmospheric characterization

摘要: Abstract The characterization of atmospheric conditions at different scales and their relationships to meteorological phenomena is a basic tool for improving the understanding prediction severe events. Hailstorms are relatively common in southern Europe during summer, causing significant adverse impacts property infrastructure. This paper provides spatiotemporal hail falls southwestern France between 2000 2010, using pad network operated there by Association Nationale d'Etude et de Lutte contre les Fleaux Atmospheriques (ANELFA). area greatly affected hailstorms. It was observed that greatest incidence severity central Pyrenees May July, with decreasing frequency intensity toward Atlantic coast. We selected 100 events which hailstorms were reported, study parameters responsible occurrence. performed mesoscale simulations WRF model, parameterizations fields reported previous studies. By applying principal component analysis (PCA) cluster analysis, we obtained three configurations help establish method results improve knowledge favorable France. allows better relating characteristics precipitation on ground.