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Mapping the cloud-to ground lightning occurrence in Fiji

Ramachandran, Visagaperuman and Kishore, Amol N. and Kumar, Sushil (2006) Mapping the cloud-to ground lightning occurrence in Fiji. The South Pacific Journal of Natural Sciences, 24 (1). pp. 32-37. ISSN 1013-9877

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Using the Time Of Group Arrival (TOGA) of sferics two year (Jan2003-Dec2004) annual average of about 3,200 and 1,200 cloud-to-ground (CG) flashes were recorded in the two larger islands, Viti Levu and Vanua Levu, Fiji. A two year average CG flash density showed maxima of 0.80 and 0.35 flashes/km2 per year in two islands. The diurnal variation showed peak activity between 14:00 hrs- 16:00 hrs LT and the seasonal variation showed enhanced lightning incidences during November-April. Data from Lightning Imaging Sensor (LIS) aboard the NASA Tropical Rainfall Measuring Mission (TRMM) satellite are also presented for the same period at the two locations. Lightning in a 10 km×10 km area was compared with total rain accumulation at a site midway in the area which shows good correlation.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Ms Neha Harakh
Date Deposited: 15 Mar 2006 04:23
Last Modified: 17 Jul 2012 06:02

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