author = "Kayano, Mary Toshie and Andreoli, Rita Val{\'e}ria and Souza, 
                         Rodrigo A. F. de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade do Estado do Amazonas (UEA)} and {Universidade do 
                         Estado do Amazonas (UEA)}",
                title = "Pacific and Atlantic multidecadal variability relations to the El 
                         Niņo events and their effects on the South American rainfall",
              journal = "International Journal of Climatology",
                 year = "2019",
               volume = "63",
                pages = "1--18",
             keywords = "Atlantic multidecadal oscillation, climate variability, 
                         climatology, El Niņo, Pacific decadal oscillation.",
             abstract = "This paper examines the oceanic mean states associated with the 
                         Pacific decadal oscillation (PDO) and the Atlantic multidecadal 
                         oscillation (AMO) and their relations to the El Niņo (EN). The 
                         mean states refer to the simultaneous occurrences of warm (W) and 
                         cold (C) phases of these oscillations: WAMO/CPDO, CAMO/ WPDO and 
                         CAMO/CPDO. In general, the sea surface temperature (SST) anomaly 
                         patterns of the mean states show a combination of the PDO and AMO 
                         related anomaly patterns in the Pacific Ocean, and the strongest 
                         AMO-related anomaly signals in the Atlantic Ocean with almost 
                         antisymmetric SST anomaly patterns in the northern and southern 
                         extratropical sectors of this Ocean. One of the most important 
                         results of this paper concerns the contrasting features between 
                         the CAMO/ WPDO and the WAMO/CPDO mean states, which are noticeable 
                         for the SST, zonal circulation cell and precipitation during the 
                         austral autumn. Besides the opposite inter-basin equatorial 
                         Atlantic/eastern equatorial Pacific cells, the CAMO/ WPDO and 
                         WAMO/CPDO mean states also feature, respectively, a weakened and 
                         strengthened Walker cell in the tropical Pacific during the 
                         austral autumn. The results here indicate that the inter-basin 
                         eastwest cell between the equatorial Atlantic and eastern Pacific 
                         contributes to strengthen (weaken) the Walker cell during the 
                         austral autumn of the WAMO/CPDO (CAMO/WPDO) mean state. We also 
                         found that the mean states alter the EN features. The EN-related 
                         largest positive SST anomalies occur in the central tropical 
                         Pacific during the WAMO/CPDO, and in the eastern tropical Pacific 
                         during the CAMO/WPDO. The Atlantic and Pacific oceanic mean states 
                         play an important role in modulating the EN features and their 
                         effects on the South American rainfall. The results presented in 
                         this paper might be relevant for climate monitoring and modelling 
                  doi = "10.1002/joc.6326",
                  url = "http://dx.doi.org/10.1002/joc.6326",
                 issn = "0899-8418",
             language = "en",
           targetfile = "kayano_pacific.pdf",
        urlaccessdate = "22 abr. 2021"