ANÁLISE INTERDECADAL E SAZONAL DE CICLONES EXTRATROPICAIS SOBRE A COSTA SUL BRASILEIRA DE 1957 A 2010

Autor: Mário Francisco Leal Quadro, Michel Nobre Muza, Maurício Granzotto Mello
Rok vydání: 2015
Předmět:
Zdroj: Ciência e Natura. 37
ISSN: 2179-460X
0100-8307
DOI: 10.5902/2179460x16222
Popis: This work presents the occurrence and the lifetime of extratropical cyclones over the coast of Brazil, presenting a seasonal and interdecadal analysis. The data of extratropical cyclones events were obtained through a detection scheme for trajectory data from NCEP reanalysis-1. In the current work, was made a selection of cyclones with persistence equal or major than 24 hours, for the period 1957-2010, in an area correspondent to 15oS to 45oS latitude and 20oW to 60oW of longitude. The interdecadal and seasonal proposed comparative is based in recent research of interdecadal variability. During this 54 years period, winter was the season with most occurrence of cyclones, there was 822 events. However, analyzing the time series in distinct periods is possible identify the interdecadal and seasonal variability.
Databáze: OpenAIRE