@Article{FerroYamPimNacSab:2011:LiRiWa,
author = "Ferro, Marco Antonio da Silva and Yamasaki, Jorge and Pimentel,
Douglas Roberto M. and Naccarato, Kleber Pinheiro and Saba,
Marcelo Magalh{\~a}es Fares",
affiliation = "{Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and
{Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and
{Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Lightning risk warnings based on atmospheric electric field
measurements in Brazil",
journal = "Journal of Aerospace Technology and Management",
year = "2011",
volume = "3",
number = "3",
pages = "301--310",
month = "Sept.",
keywords = "Atmospheric electric field, Electric field-mill, Lightning.",
abstract = "This paper presents a methodology that employs the electrostatic
field variations caused by thundercloud formation or displacement
to generate lightning warnings over a region of interest in
Southeastern Brazil. These warnings can be used to prevent
accidents during hazardous operations, such as the manufacturing,
loading, and test of motor-rockets. In these cases, certain
equipment may be moved into covered facilities and personnel are
required to take shelter. It is also possible to avoid the threat
of natural and triggered lightning to launches. The atmospheric
electric field database, including the summer seasons of 2007/2008
and 2008/2009 (from November to February), and, for the same
period and region, the cloud-to-ground lightning data provided by
the Brazilian lightning detection network BrasilDAT were used in
order to perform a comparative analysis between the lightning
warnings and the cloud-to-ground lightning strikes that
effectively occurred inside the area of concern. The analysis was
done for three areas surrounding the sensor installation defined
as circles with 5, 10 and 15 km of radius to determine the most
effective detection range. For each area it was done using several
critical electric field thresholds: +/- 0.5; +/- 0.8; +/- 0.9; +/-
1.0; +/- 1.2; and +/- 1.5 kV/m. As a result of the reduction of
atmospheric electric field data provided by the sensor installed
in area of concern and lightning provided by BrasilDAT, it was
possible, for each of the areas of alert proposals, to obtain the
following parameters: the number of effective alarms; the number
of false alarms; and the number of failure to warning. From the
analysis of these parameters, it was possible to conclude that,
apparently, the most interesting critical electric field threshold
to be used is the level of 0.9 kV/m in association with a distance
range of 10 km around the point where the sensor is installed.",
doi = "{10.5028/jatm.2011. 03032511}",
url = "http://dx.doi.org/{10.5028/jatm.2011. 03032511}",
issn = "1984-9648",
language = "en",
targetfile = "2011 A - JATM
Lightning_risk_warnings_based_on_atmospheric_electric_field_measurements_in_brazil.pdf",
urlaccessdate = "06 maio 2024"
}