Lightning Properties Determined From Single Station WidebandElectric Field Measuremnts

通过单站宽带电场测量确定闪电特性

• 批准号: 8807449
• 负责人: Martin Uman
• 金额: $ 14.91万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-10-15 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8807449&HistoricalAwards=false
• 关键词: Lightning; Properties; Determined; Single; Station

Analog tape records of the lightning electric fields which occurred during three storms will be analyzed for the time-of- occurrence and characteristics of electric field pulses associated (1) with the initiation of continuing current (2) with K-processes in both cloud and ground discharges (3) with preliminary breakdown in ground discharges (4) with the initial portion of cloud discharges, and (5) with dart and stepped leaders in ground discharges. The unique aspects of these data, already in hand, are (1) that 100 ground flashes (about 350 stokes) whose fields are recorded on the analog tapes have already been accurately located by two or more television cameras and (2) that the return stroke fields on these tapes have been previously analyzed and the results published providing assurance that the signals are "on-scale" and of good quality.

雷电电场的模拟磁带记录， 在三个风暴期间发生的事件将被分析， 电场脉冲的产生和特征 （1）与持续电流（2）的启动相关联， 云和地面放电中的K过程（3）， 地面放电的初步击穿（4）， 部分云放电，（5）与飞镖和阶梯 地面放电的领导者。 这些数据的独特之处， 已经在手，是（1）100地面闪光（约350 斯托克斯），其字段记录在模拟磁带上， 已经被两个或多个电视摄像机准确定位 和（2）这些磁带上的回击场已经被 先前分析并公布的结果提供了保证 信号是“在标度上”且质量良好。