Publication Date:
2014-04-25
Description:
We estimated the performance characteristics of the Global Lightning Dataset (GLD360) using rocket-and-wire triggered lightning data acquired at Camp Blanding, Florida in 2011–2013. The data set consisted of 201 return strokes and 84 kiloampere-scale (≥1 kA) superimposed pulses (initial continuous current pulses and M-components) in 43 flashes. All the events transported negative charge to ground. The GLD360 detected 75 strokes and 4 superimposed pulses in 29 flashes. The resultant detection efficiencies were 67% for flashes, 37% for strokes, and 4.8% for superimposed pulses. Out of 75 detected strokes, 1 (1.3%) was reported with incorrect polarity. The median location error was 2.0 km and the median absolute current estimation error was 27%. This is the first evaluation of GLD360 performance characteristics relative to absolute ground-truth, with all previous evaluations being relative to other locating systems. The results presented in this work may be applicable to regions in and around Florida.
Print ISSN:
0094-8276
Electronic ISSN:
1944-8007
Topics:
Geosciences
,
Physics