The first electric field pulse of cloud and cloud-to-ground lightning discharges
2010 (English)In: Journal of Atmospheric and Solar-Terrestrial Physics, ISSN 1364-6826, E-ISSN 1879-1824, Vol. 72, no 2-3, 143-150 p.Article in journal (Refereed) Published
In this study, the first electric field pulse of cloud and cloud-to-ground discharges were analyzed and compared with other pulses of cloud discharges. Thirty eight cloud discharges and 101 cloud-to-ground discharges have been studied in this analysis. Pulses in cloud discharges were classified as [`]small', [`]medium' and [`]large', depending upon the value of their relative amplitude with respect to that of the average amplitude of the five largest pulses in the flash. We found that parameters, such as pulse duration, rise time, zero crossing time and full-width at half-maximum (FWHMs) of the first pulse of cloud and cloud-to-ground discharges are similar to small pulses that appear in the later stage of cloud discharges. Hence, we suggest that the mechanism of the first pulse of cloud and cloud-to-ground discharges and the mechanism of pulses at the later stage of cloud discharges could be the same.
Place, publisher, year, edition, pages
2010. Vol. 72, no 2-3, 143-150 p.
Cloud discharges, Electromagnetic field, Lightning, Electric field pulses
Meteorology and Atmospheric Sciences Engineering and Technology
Research subject Engineering Science with specialization in Atmospheric Discharges
IdentifiersURN: urn:nbn:se:uu:diva-140337DOI: 10.1016/j.jastp.2009.11.001OAI: oai:DiVA.org:uu-140337DiVA: diva2:383446