@Article{KayanoAndr:2003:PrSeTe,
author = "Kayano, Mary Toshie and Andreoli, Rita Valeria",
affiliation = "INPE/ Centro de Previsao de Tempo e Estudos Climaticos,
BR-12227010 Sao Jose Dos Campos, SP, Brazil",
title = "Propagation of the sea-surface temperature anomalies in the
Tropical Atlantic.",
journal = "Meteorology and Atmospheric Physics",
year = "2003",
volume = "84",
number = "3-4",
pages = "275--284",
month = "Oct.",
keywords = "Climatic Variability, meridional modes, ocean, equatorial.",
abstract = "The evolving modes of the sea-surface temperature (SST) in the
Tropical Atlantic on the short interannual (IA) timescale were
obtained by performing the extended empirical orthogonal function
(EEOF) analyses on this variable separately for the 106-year
(1871-1976) and 20-year (1881-1900; 1901-1920; 1921-1940;
1941-1960) periods. The equatorial and inter-hemispheric patterns
manifest in the first EEOF mode of each analysis as part of the
short IA evolution of the SST anomalies in the Tropical Atlantic.
Another outstanding feature of the first EEOF mode of each
analysis concerns the propagations of the SST anomalies in the
meridional direction within the 20degrees N-20degreesS band and in
the zonal direction in the sector 40degreesW-20degrees W. For all
analyses, the SST anomalies propagate northward from the equator
to 15degreesN and southward from 20degreesN to 15degreesN, with
the same sign anomalies merging approximately at 15degreesN. On
the other hand, the SST anomalies propagate westward in the sector
40degreesW-20degrees W with a propagation rate close to that of
the phase speed of the fastest baroclinic Rossby wave in the
ocean. So, the observed propagations of the SST anomalies in the
20degreesN-20degreesS band might result from the combined effect
of the surface oceanic currents in this band and the baroclinic
Rossby waves in the ocean.",
copyholder = "SID/SCD",
issn = "0177-7971",
language = "en",
targetfile = "Kayano_Propagation of the sea-surface temperature",
urlaccessdate = "26 abr. 2024"
}