@Article{SouzaAnKaCeSoRo:2023:ReInOc,
               author = "Souza, Itamara P. P. and Andreoli, Rita Val{\'e}ria and Kayano, 
                         Mary Toshie and Ceron, Wilmar Loiza and Souza, Rodrigo A. F. and 
                         Roy, Indrani",
          affiliation = "{Instituto Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and 
                         {Universidade do Estado do Amazonas (UEA)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas da Amaz{\^o}nia (INPA)} and {Universidade do Estado do 
                         Amazonas (UEA)} and UCL",
                title = "Interdecadal Pacific Oscillation modulation of ENSO 
                         teleconnections in its decaying stages: Relations with Indian 
                         Ocean basin-wide mode and South American precipitation",
              journal = "International Journal of Climatology",
                 year = "2023",
               volume = "43",
               number = "7",
                pages = "3264--3283",
                month = "June",
             keywords = "ENSO, Indian Ocean, interdecadal modulation, precipitation, South 
                         America.",
             abstract = "This study examines the Interdecadal Pacific Oscillation (IPO) 
                         modulation of the El Nino-Southern Oscillation (ENSO) 
                         teleconnections in its decaying stages with the tropical ocean by 
                         focusing on the Indian Ocean Basin-Wide (IOBW) mode and the 
                         precipitation over South America (SA) in the 1901-2012 period. 
                         Composite analyses revealed that the ENSO teleconnections are 
                         IPO-modulated due to the differential ENSO decaying speed, which 
                         is slower during the positive than negative IPO phase, for both El 
                         Nino (EN) and La Nina (LN) cases. Negative precipitation anomalies 
                         related to EN persist over northeastern SA until austral winter 
                         for the positive IPO phase (POS IPO), while significant opposite 
                         sign anomalies occur in this region for the negative IPO phase 
                         (NEG IPO). These results are associated with the Walker 
                         circulation's reversal during NEG IPO which is, in turn, 
                         accompanied by negative IOBW. During the POS IPO, the positive 
                         IOBW causes upward movements over there and, by continuity, 
                         downward movements over SA. In the NEG IPO, for LN events the wave 
                         train originating in the north of Australia propagates toward 
                         subtropical SA, which, coupled with the surface circulation, 
                         causes dryness in this region. In addition, the rapid decay of LN 
                         in the NEG IPO, followed by the emergence of EN, caused changes in 
                         the Walker circulation, such that enhanced upward movements 
                         occurred over the Pacific and SA region, and downward movements 
                         over the Indian Ocean until austral winter. In turn, the slower 
                         decay of the LN in the POS IPO maintains strong subsidence over 
                         the central Pacific and weak upward motions over western SA. So, 
                         the EN (LN) and positive (negative) IOBW during the POS (NEG) IPO 
                         prolong the scarcity of precipitation over equatorial 
                         (subtropical) SA. Persistent dry periods over these regions during 
                         the ENSO decaying stage might have important implications for the 
                         seasonal forecasts.",
                  doi = "10.1002/joc.8028",
                  url = "http://dx.doi.org/10.1002/joc.8028",
                 issn = "0899-8418",
             language = "en",
           targetfile = "Intl Journal of Climatology - 2023 - Souza - Interdecadal Pacific 
                         Oscillation modulation of ENSO teleconnections in its.pdf",
        urlaccessdate = "06 maio 2024"
}