Open AccessRelating winds along the Southern Brazilian coast to extratropical cyclones
Author(s) -
Bitencourt Daniel Pires,
Manoel Gan,
Acevedo Otavio Costa,
Fuentes Marcia Vetromilla,
Muza Michel Nobre,
Rodrigues Maria Laura,
Leal Quadro Mario Francisco
Publication year - 2011
Publication title -
meteorological applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 59
eISSN - 1469-8080
pISSN - 1350-4827
DOI - 10.1002/met.232
Subject(s) - extratropical cyclone , cyclone (programming language) , climatology , wind speed , middle latitudes , maximum sustained wind , environmental science , submarine pipeline , westerlies , latitude , cyclogenesis , meteorology , geology , geography , wind direction , oceanography , wind gradient , geodesy , field programmable gate array , computer science , computer hardware
Intense wind events at the southern Brazilian coast cause severe socio‐economic losses. Generally, such events have been associated with extratropical cyclones over the Southwest Atlantic Ocean. The purpose of this study is to identify favoured locations and the processes through which the winds are associated with the extratropical cyclones. Using a statistical analysis, the wind speed observed at nine meteorological stations was compared with cyclone depth and offshore distance. Both cyclone depth and location were obtained through an objective procedure of identifying and tracking. Generally, the winds are well associated with the extratropical cyclones only south of 28°S. Altitude also plays an important role in this relationship. Furthermore, the cyclones influence the observed wind field up to 1200 km inland at higher latitude locations. For stations near 28°S, cyclones further from the coast have an influence, but with smaller statistical significance. Copyright © 2010 Royal Meteorological Society