RELATIONSHIP BETWEEN THE LOW POSITIVE CHARGE REGION AND MULTIPLICITY OF RETURN STROKE IN NEGATIVE GROUND FLASH

Abstract

It is significantly important to investigate the relationship between the amplitudes of a Preliminary Breakdown Pulse (PBP) train and the corresponding first Return Stroke [RS], to define the relationship of the characteristics of lightning based on geographical location, latitude and storm type. The investigation of comparative study on PBP trains observed in Johor, Malaysia and Florida, USA reported by Baharudin and Co-workers [1] using high resolution data recorded from thunderstorms in Malaysia and USA (recorded on 2009) are compared with other results from Sweden, Finland, Sri Lanka and USA (recorded by Nag and co-workers in 2008 and 2009). This study revealed the strength of the ground-flash-initiation breakdown process in the cloud, measured against on a comparison with the peak radiation field of the resulting RS in northern region is larger compared to tropical region. Preliminary Breakdown Pulse; Return Stroke; ground-flash-initiation