Initial Breakdown Inside of Thunderstorms

摘要：

It has long been recognized that there exists a disconnect between the electric fields necessary to initiate breakdown in free air and the fields that are actually measured inside thunderstorms. Early studies investigated the possible influence of various types of hydrometeors (I.e. Supercooled water drops, ice crystals, groupel) on enhancing the ambient electric field and initiating breakdown. These early investigations have been largely ignored by more recent studies that have embraced the concept of cosmic ray initiated lightning. To date there has been no conclusive data that convincingly favors either the hydrometeor or cosmic mechanism. In this presentation, published laboratory and theoretical investigations of both theories are reviewed as well recent studies of initial breakdown using multi-parameter radar, electric field change meters and VHF lightning mapping array data.

作者: P. M. Bitzer H. J. Christian J. Latham

作者单位: NSSTC, University of Alabama in Huntsville, 320 Sparkman Drive, Huntsville, AL 35899, USA NCAR, P.O.Box 3000, Boulder, CO 80301, USA

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）