@Article{CerónKaAnAvSoSo:2021:PaAtMu,
               author = "Cer{\'o}n, Wilmar L. and Kayano, Mary Toshie and Andreoli, Rita 
                         V. and Avila Diaz, Alvaro and Souza, Itamara Parente de and Souza, 
                         Rodrigo A. F.",
          affiliation = "{Universidad del Valle} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Universidade do Estado do Amazonas (UEA)} 
                         and {Universidade Federal de Itajub{\'a} (UNIFEI)} and {Instituto 
                         Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and {Universidade 
                         do Estado do Amazonas (UEA)}",
                title = "Pacific and atlantic multidecadal variability relations with the 
                         choco and caribbean low-level jets during the 1900–2015 period",
              journal = "Atmosphere",
                 year = "2021",
               volume = "12",
               number = "9",
                pages = "e1120",
                month = "Sept.",
             keywords = "Atlantic multidecadal oscillation, Climate variability, 
                         Northwestern South America, Pacific decadal oscillation, Twentieth 
                         century reanalysis.",
             abstract = "This study analyzes the variability of the Choco jet (CJ) and 
                         Caribbean low-level jet (CLLJ) with consideration of the 
                         simultaneous Pacific interdecadal oscillation (PDO) and Atlantic 
                         multidecadal oscillation (AMO) low-frequency mean states and their 
                         effects on the atmospheric circulation and rainfall in 
                         northwestern South America and Central America for the 19002015 
                         period, during the seasons with the highest intensities of the CJ 
                         (SeptemberNovember (SON)) and the CLLJ (JuneAugust). Variations in 
                         the sea surface temperature (SST) anomaly positioning in the 
                         eastern Pacific, tropical North Atlantic (TNA)/Caribbean Sea 
                         during different mean states restrict the anomalous circulation, 
                         and, consequently, the intensity of the CJ and CLLJ. During the 
                         warm AMO (WAMO)/cold PDO (CPDO), the SST gradient from the 
                         tropical Pacific into the TNA, accompanied by a cyclonic 
                         circulation near the east coast of the Americas, intensifies the 
                         westeast circulation in the region, strengthening the CJ and 
                         weakening the CLLJ during SON such that rainfall increases over 
                         Colombia, Central America and in adjacent oceans. During the cold 
                         AMO (CAMO)/warm PDO (WPDO) phase, a relative east/west SST 
                         gradient occurs in TNA, consistent with a cyclonic circulation in 
                         western TNA, establishing an anomalous southwestnorthwestward 
                         circulation from the eastern Pacific into the Caribbean basin, 
                         forming a well-configured CJ, increasing precipitation over 
                         Central America and its adjacent oceans. For the CLLJ, during CAMO 
                         phases, the anticyclonic circulations extended over most of the 
                         TNA favor its intensification from 30\◦ W to the Caribbean 
                         Sea. In contrast, during WAMO, the cyclonic circulation near the 
                         east coast of the United States restricts its intensification to 
                         the Caribbean Sea region. To the best of our knowledge, the 
                         results presented here are new and might be useful in atmospheric 
                         modeling and extreme event studies.",
                  doi = "10.3390/atmos12091120",
                  url = "http://dx.doi.org/10.3390/atmos12091120",
                 issn = "2073-4433",
             language = "en",
           targetfile = "ceron_pacific.pdf",
        urlaccessdate = "20 maio 2024"
}