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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Relationship between the southern annular mode and southern hemisphere atmospheric systems

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Author(s):
Michelle Simões Reboita [1] ; Tércio Ambrizzi [2] ; Rosmeri Porfírio da Rocha [3]
Total Authors: 3
Affiliation:
[1] Universidade de São Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas. Departamento de Ciências Atmosféricas
[2] Universidade de São Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas. Departamento de Ciências Atmosféricas
[3] Universidade de São Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas. Departamento de Ciências Atmosféricas
Total Affiliations: 3
Document type: Journal article
Source: Revista Brasileira de Meteorologia; v. 24, n. 1, p. 48-55, 2009-03-00.
Abstract

Seasonal relationship between the Southern Annular Mode (SAM) and the spatial distribution of the cyclone systems over Southern Hemisphere is investigated for the period 1980 to 1999. In addition, seasonal frontogenesis and rainfall distribution over South America and South Atlantic Ocean during different SAM phases were also analyzed. It is observed that during negative SAM phases the cyclone trajectories move northward when compared to the positive one, and in the South America and South Atlantic sector there is intense frontogenetic activity and positive anomaly precipitation over the Southeast of the South America. In general, SAM positive phase shows opposite signals. (AU)

FAPESP's process: 04/02446-7 - Extratropical cyclones above the South Atlantic: climatic simulations and the impact of sea surface temperature
Grantee:Michelle Simões Reboita
Support Opportunities: Scholarships in Brazil - Doctorate