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@Article{BarretoCavaMesqPedr:2019:MuInRa,
               author = "Barreto, Naurinete de Jesus da Costa and Cavalcanti, Iracema 
                         Fonseca de Albuquerque and Mesquita, Michel S. and Pedra, George 
                         Ulguim",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Bjerknes Centre for 
                         Climate Research} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Multivariate intraseasonal rainfall index applied to South 
                         America",
              journal = "Meteorological Applications",
                 year = "2019",
               volume = "26",
               number = "4",
                pages = "521--527",
                month = "Oct.",
             keywords = "intraseasonal, Madden–Julian Oscillation, maximum covariance 
                         analysis.",
             abstract = "The intraseasonal variability over South America is investigated 
                         using a multivariate index based on maximum covariance analysis 
                         (MCA). This technique identifies the correlation patterns of two 
                         different data sets. The Climate Prediction Center (CPC) grid 
                         precipitation over South America and the tropical means (15°N15°S) 
                         of outgoing long wave radiation (OLR) and zonal wind component at 
                         850 and 200 hPa (National Oceanic and Atmospheric Administration 
                         (NOAA) and National Centers for Environmental Prediction 
                         (NCEP)/National Center for Atmospheric Research (NCAR) reanalysis, 
                         respectively) are used in the study. The MCA was applied to these 
                         data sets and a Multivariate Intraseasonal Rainfall Index for 
                         South America for South America (MIRI.SA) was constructed based on 
                         the phase and amplitude vectorial projections of the first two 
                         modes. Composites of selected cases when the amplitude was above a 
                         threshold are discussed for different phases of the MaddenJulian 
                         Oscillation (MJO). Phases (8+1) and (4+5) present strong 
                         convection anomalies over the maritime continent and South 
                         America, but with opposite signs. These patterns represent the 
                         dominant mode of precipitation over South America. Phases (2+3) 
                         and (6+7) are transient and related to the secondary mode of 
                         precipitation over South America. A space-phase diagram calculated 
                         using the MIRI.SA index at different lags represents the positive 
                         precipitation locations over both South America and the Equatorial 
                         Pacific. The construction of this diagram in near real time could 
                         be used for monitoring precipitation extremes over different areas 
                         of South America.",
                  doi = "10.1002/met.1780",
                  url = "http://dx.doi.org/10.1002/met.1780",
                 issn = "1350-4827",
             language = "en",
           targetfile = "Barreto_et_al-2019-Meteorological_Applications.pdf",
        urlaccessdate = "12 abr. 2021"
}


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