Evaluation of STARNET lightning detection performance in the Amazon region

Autor:	José Ricardo Santos de Souza, Brígida Ramati Pereira da Rocha, Laure Dentel
Rok vydání:	2013
Předmět:	Lightning detection Amazon rainforest Peak current Radio atmospheric Geodesy law.invention Homogeneous law Coincident Time windows General Earth and Planetary Sciences Environmental science Very low frequency Remote sensing
Zdroj:	International Journal of Remote Sensing. 35:115-126
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431161.2013.862604
Popis:	The lightning detection performance of the very low frequency VLF long-range Sferics Tracking and Ranging Network STARNET was evaluated by comparison with a simultaneous data collection made by the Sistema de Protecao da Amazonia Lightning Detection Network SIPAM-LDN. The study period was 110 days between August 2008 and March 2009, corresponding to a stable period of the STARNET network when it was operating with five sensors to cover the eastern Amazon region. The selected area of study corresponded to a circle of 130 km diameter within a homogeneous zone of detection efficiency DE of the SIPAM network. A method of coinciding flash identification time window of 1 ms and spatial range of 50 km was used for these two networks. The coinciding cloud-to-ground CG flashes were discriminated by polarity and peak current values from the SIPAM-LDN measurements. The total number of coincident CG flashes represented about 9.7% of the CG SIPAM data set. Moreover, 94 % of the coinciding CG flashes had a time error
Databáze:	OpenAIRE
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