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(Article of periodic en Anglais - 2010)

Document title

Locating convection in landfalling tropical cyclones : a GIS-based analysis of radar reflectivities and comparison to lightning-based observations

Authors(s) and Affiliation(s)

MATYAS C.J. (1) ;
(1) Dep. of Geography, Univ. of Florida, Gainesville, ETATS-UNIS

Abstract

Researchers have utilized radar reflectivity returns and lightning flashes separately and together to locate convection with tropical cyclones (TCs). This study employs a GIS to delineate regions of high radar reflectivity values within 45 landfalling TCs. The percentage of convective regions contained within each quadrant placed relative to storm motion and deep-layer vertical wind shear is calculated. These percentages are then compared to those from previous studies of quadrant-based lightning flash locations. Results indicate that the GIS-based radar analysis may be identifying TC regions that are electrically active. Both the radar- and lightning-based analyses show that convection shifts from the right to the front of the storm as forward velocity increases

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2010, vol. 31, no5 [pp. 385-406]

Bibliographic references : 5 p.

Collation : 6 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.2747/0272-3646.31.5.385

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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