NDLI: Lightning Warning and Analysis of Lightning Threats Risks for Human Life Protection in Brazil

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Lightning Warning and Analysis of Lightning Threats Risks for Human Life Protection in Brazil

Content Provider	Semantic Scholar
Author	Naccarato, Kleber P. Pinto, Osmar
Copyright Year	2012
Abstract	The Atmospheric Electricity Group (ELAT) from INPE developed, in the last 6 years (the first work on this subject was presented by Naccarato and Pinto. 2007), a methodology for cloud-to-ground (CG) lightning warning with up to 1h time in advance (nowcasting) for regions smaller than 100km 2 . This approach is particularly attractive because, presently in Brazil, thunderstorm warning systems are mainly based on numerical models or satellite products, which work better for large areas. For small areas (as city neighborhoods, stadiums, refineries, airports, power plants, construction areas, etc) those lightning warning systems still do not present a satisfactory accuracy in both space and time domains. Nowadays, the more powerful computational resources allow increasing the prediction model time and spatial resolution also adding cloud microphysics calculations in the forecast. However, there is usually a great effort to gather model initialization data at the same spatial and time resolutions. Moreover, local convective storms present highly changeable dynamics and strong dependency on the regional conditions (like the topography, wind circulation, humidity, etc). Therefore, these particular dynamics tend to be neglected by the present meteorological models due to the lake of high resolution initialization data leading to significant errors in the forecast. This work intends to show that the present lightning warning methodology can be used as a powerful tool for human life protection since it can be an alternative way to predict lightning occurrence over a particular small area. Moreover, according to the Brazilian (ABNT NBR-5419:2005), the U.S. (NFPA-780 Ed 2008)
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.vaisala.com/sites/default/files/documents/Lightning%20Warning%20and%20Risk%20Analysis%20for%20Human%20Life%20Protection%20in%20Brazil.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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