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Title: Predicting the potential for lightning activity in mediterranean storms based on the WRF model dynamic and microphysical fields
Author: Yair, Yoav
Lynn, Barry
Price, Colin
Kotroni, Vassiliki
Lagouvardos, Konstantinos
Morin, Efrat
Mugnai, Alberto
Llasat Botija, María del Carmen
Keywords: Llamps
Previsió del temps
Models matemàtics
Mediterrània (Regió)
Weather forecasting
Mathematical models
Mediterranean Region
Issue Date: 2010
Publisher: American Geophysical Union
Abstract: A new parameter is introduced: the lightning potential index (LPI), which is a measure of the potential for charge generation and separation that leads to lightning flashes in convective thunderstorms. The LPI is calculated within the charge separation region of clouds between 0 C and 20 C, where the noninductive mechanism involving collisions of ice and graupel particles in the presence of supercooled water is most effective. As shown in several case studies using the Weather Research and Forecasting (WRF) model with explicit microphysics, the LPI is highly correlated with observed lightning. It is suggested that the LPI may be a useful parameter for predicting lightning as well as a tool for improving weather forecasting of convective storms and heavy rainfall.
Note: Reproducció del document publicat a:
It is part of: Journal of Geophysical Research, 2010, vol. 115, num. D04205, p. 1-13
Related resource:
ISSN: 0148-0227
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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