Lightning activity and pollution over Paris area between 1992 and 2003

摘要：

12 years of cloud-to-ground (CG) lightning flashes data over a 200 km × 200 km domain centered on Paris (France) have been analyzed to infer the possible influence of urban heat island and of pollution on the lightning activity. Lightning flashes are statistically more numerous in the North-East half of the domain and increasingly large events progressively concentrate over Paris and over some hills around. The number of positive CG flashes and the number of days when a least one positive CG flash occurred are rather uniformly distributed on the whole domain except in the North-East where they appear lower. This corresponds to a reduction in the percentage of positive CG flashes over Paris, and to a decrease in positive CG flashes occurrence downwind of Paris, probably due to the aerosols influence.

作者: Marie-Pierre Boussaton Sylvain Coquillat

作者单位: Laboratoire dAérologie, UMR CNRS/UPS n°5560, Observatoire Midi-Pyrénées, Toulouse, France

会议类型: 国际会议

会议名称: 第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-13（万方平台首次上网日期，不代表论文的发表时间）