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@Article{AndreoliKaya:2004:MuVaSe,
               author = "Andreoli, Rita V. and Kayano, Mary Toshie",
          affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
                title = "Multi-scale variability of the sea surface temperature in the 
                         Tropical Atlantic",
              journal = "Revista Brasileira de Geof{\'{\i}}sica",
                 year = "2004",
               volume = "109",
               number = "C 5",
                pages = "Art. No. C05009",
                month = "May.",
             keywords = "wavelet, sea surface temperature, Tropical Atlantic.",
             abstract = "[1] Tropical Atlantic ( TA) sea surface temperature (SST) 
                         variability is studied using the Continuous Wavelet Transform 
                         (CWT) of the SST indices in the Tropical North Atlantic (TNA), 
                         Tropical South Atlantic (TSA), and Equatorial Atlantic (EQA). CWT 
                         of the difference index (TNSD) between the TNA and TSA indices and 
                         the cross-wavelet spectrum for the TNA and TSA indices are also 
                         examined. The analyses focus the short-interannual, interannual, 
                         and decadal scales. The Global Wavelet Power of the TNA, TSA, and 
                         EQA indices confirm previous findings on the dominant scales of 
                         the SST variability in different TA sectors. The decadal peaks are 
                         dominant for the TNA and TSA indices while the interannual peaks 
                         are significant only for the EQA index. The scale averaged 
                         DeltaPhi series for all scales feature a number of abrupt 
                         reversals of +/- 180degrees which depends on the scale, with 
                         larger number for smaller scales. The DeltaPhi during the period 
                         between two subsequent abrupt reversals remains close to 
                         +/-180degrees or varies within sub-intervals of the -180degrees to 
                         +180degrees range, thus the dipole-like, cross-equatorial SST 
                         anomaly gradient, monopole, and equatorial patterns are 
                         established as evolving modes. For all scales, the periods of 
                         abrupt DeltaPhi reversals of +/-180degrees occur within the 
                         periods with change in the meridional propagation directions of 
                         the SST anomalies or with reduced SST anomalies. This result 
                         strongly suggests that the establishment of the SST anomaly 
                         patterns in the TA depends crucially on the meridional propagation 
                         of the SST anomalies. This is a new aspect not discussed before.",
           copyholder = "SID/SCD",
                 issn = "0102-261X",
             language = "en",
           targetfile = "Andreoli_Multi-scale.pdf",
        urlaccessdate = "28 mar. 2024"
}


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