@InProceedings{MouraKaga:1983:TeSoAm,
               author = "Moura, Antonio Divino and Kagano, Mary T",
                title = "Teleconnections between South America and Western Africa as 
                         revealed by monthly precipitation analyses",
                 year = "1983",
         organization = "International Conference Southern Hemisphere Meteorology, 1.",
             keywords = "METEOROLOGIA.",
             abstract = "The spatial distribution of monthly precipitation deviations from 
                         the normal over tropical South America and Western Africa was 
                         investigated using the available data up to the seventies. The 
                         spatial scales associated with these deviations were determined 
                         for dry and wet years in Northeast Brazil. It was found that, on 
                         the average, the NE Brazil drought spatial scale is not confined 
                         to that region but extends from South America to Africa, and 
                         perhaps more to East, in accordance with GCM simulations by Moura 
                         and Shukla (1981). The results also show an inverse relationship 
                         between NE Brazil and Guyanas rainfall, in agreement with 
                         Hastenrath and Heller (1977). It was found that years of drought 
                         in NE Brazil are also extremely dry over the south equatorial 
                         region of Africa, west of 20 graus E. In addition, sea level wind 
                         divergence March time series in the Atlantic, from 1948 up to 
                         1972, correlated with precipitation in NE Brazil (Fortaleza and 
                         Quixeramobim)shows a negative area of correlation in South 
                         Atlantic and a positive area in tropical North Atlantic. This 
                         seems to be associated with interannual variations in intensity 
                         and position of the ITCZ and anomalous SST patterns as shown by 
                         Moura and Shukla (1981)and further evidenced by Oliveira 
                         (1982)using satellite imagery. The conclusion is that the spatial 
                         scale of atmospheric and oceanic phenomena associated with 
                         droughts in NE Brazil is not regional, but seems to extend from 
                         South America to Africa.",
  conference-location = "Sao Jose dos Campos, SP",
      conference-year = "31 July-07 Aug. 1983",
                label = "2375",
           targetfile = "INPE-2734.pdf",
        urlaccessdate = "30 jun. 2024"
}