Impact of aerosols in cloud electrification:Results from cloud modeling and measurements at the Amazon region

摘要：

Amazonian convective systems have unique microphysical characteristics,varying from a maritime convective behavior (rainy season)to a continental behavior (wet-dry transition season),which modulates the electrification of these systems.The fact is that coincidentally or not this same modulation of precipitation regulates the period of farmer fires to prepare the pasture for cattle,releasing high concentrations of aerosols into the atmosphere. This work shows that convective storms of different sizes happened to have more positive CG lightning during the very polluted period of biomass burning,while this tendency was decreased with the establishment of the wet season and consequently less pollution.

作者: Rachel Albrecht Carlos Morales Maria A.F.Silva Dias

作者单位: University of Sao Paulo,Sao Paulo,Brazil University of Sao Paulo,Sao Paulo,Brazil;Center for Weather and Climate Prediction (CPTEC),Cachoeira

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）