@Article{EvangelistaEcheEche:2022:UsWaDe,
               author = "Evangelista, Heitor and Echer, Mariza Pereira de Souza and Echer, 
                         Ezequiel",
          affiliation = "{Universidade do Esado do Rio de Janeiro (UERJ)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Using wavelet decomposition method to retrieve the solar and the 
                         global air temperature signals from Greenland, Andes and East 
                         Antarctica delta O-18 ice core records",
              journal = "Anais da Academia Brasileira de Ci{\^e}ncias",
                 year = "2022",
               volume = "94",
               number = "Supl. 1",
                pages = "e20210797",
             keywords = "climate change, ice cores, oxygen isotopes, solar activity, 
                         solar-climate relationship.",
             abstract = "The surface global air temperature (SGAT) and the solar activity 
                         presented near similar trends until approximately the 1980's 
                         decade, when they start to diverge significantly. This divergence 
                         in both time series is attributed to the impact of addition 
                         players acting in the climate system as the greenhouse gas 
                         emissions and a more active ENSO (EL Nino Southern Oscillation). 
                         For the period before this {"}turning point{"} we have made an 
                         exploratory investigation on the imprint of both SGAT and the 
                         solar activity (represented by the Sunspot Number - SSN) at delta 
                         O-18 isotopic ratios retrieved from ice cores, a proxy commonly 
                         used to describe past climate changes. In this work delta O-18 
                         isotopic ratios, dated from 1861 to 1997, from three distinct 
                         global sites: (1) the Greenland Ice Sheet Project 2 (GISP2); (2) 
                         Quelccaya ice cap/Andes (Peru); and (1) Dronning Maud Land (DML)/ 
                         East Antarctica were investigated. The wavelet decomposition 
                         method and regressions applied to these databases successfully 
                         allowed the isotopic reconstructions from both SGAT and SSN. We 
                         found that the reconstructions differ significantly depending on 
                         the geographical site.",
                  doi = "10.1590/0001-3765202220210797",
                  url = "http://dx.doi.org/10.1590/0001-3765202220210797",
                 issn = "0001-3765",
             language = "en",
           targetfile = "Evangelista_2022.pdf",
        urlaccessdate = "25 jun. 2024"
}