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| Titel |
Thunderstorm incidence in southeastern Brazil estimated from different data sources |
| VerfasserIn |
O. Jr. Pinto, K. P. Naccarato, I. R. C. A. Pinto |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 31, no. 7 ; Nr. 31, no. 7 (2013-07-09), S.1213-1219 |
| Datensatznummer |
250019065
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| Publikation (Nr.) |
 copernicus.org/angeo-31-1213-2013.pdf |
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| Zusammenfassung |
| This paper describes a comparative analysis of the thunderstorm incidence in
southeastern Brazil obtained from thunderstorm days observed at two
different epochs (from 1910 to 1951 and from 1971 to 1984) and from
lightning data provided by the Brazilian lightning location system RINDAT
(from 1999 to 2006) and the Lightning Imaging Sensor (LIS) on board the Tropical Rainfall Measuring Mission
(TRMM) satellite (from 1998 to 2010). The results are interpreted in terms of the
main synoptic patterns associated with thunderstorm activity in this region,
indicating that the prevailing synoptic pattern associated with thunderstorm
activity is the occurrence of frontal systems and their modulation by the
South Atlantic Convergence Zone (SACZ) and topography. Evidence of urban
effects is also found. The results are also discussed in the context of
practical applications involving their use in the Brazilian lightning
protection standards, suggesting that the present version of the Brazilian
standards should be revised incorporating RINDAT and LIS data. Finally, the
results are important to improve our knowledge about the limitations of the
different techniques used to record the thunderstorm activity and support
future climatic studies. |
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