@Article{KayanoKous:1996:TrCiVa,
               author = "Kayano, Mary Toshie and Kousky, Vernon E.",
          affiliation = "Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos (CPTEC) and 
                         National Centers for Environmental Prediction, Climate Prediction 
                         Center",
                title = "Tropical circulation variability with emphasis on interannual and 
                         intraseasonal time scales",
              journal = "Revista Brasileira de Meteorologia",
                 year = "1996",
               volume = "11",
               number = "1 e 2",
                pages = "06 -17",
                month = "Jun.",
             keywords = "tropical, circulation variability, emphasis, interannual, 
                         intraseasonal.",
             abstract = "Tropical atmosphere variability is analyzed by computing the 
                         variance (total, interannual-IA, and intraseasonal-IS) of outgoing 
                         longwave radiation (OLR), sea levei pressure (SLP), 250-hPa 
                         streamfunction and 250-hPa velocity po- tential, and the percent 
                         of total variance in the IA and IS bands, for the period 1985-1994 
                         for ali seasons and for the austral summer and winter seasons, 
                         separately. High OLR variability in the tropics and subtropics is 
                         mainly associated with the IS band, whereas the maximum IA 
                         variance observed in the equatorial central and eastern Pacific is 
                         related to the EI Nirio-Southern Os- cillation (ENSO). The SLP 
                         variance is largest in the extratropics, however, the pattern of 
                         percent of total variance in the IA band shows maxima in the 
                         tropics consistent with the centers of action of the Southern 
                         Oscillation (SO). A substantial portion of the IS variance in SLP 
                         is related to the Madden- Julian oscillation. The greatest 
                         variance of the 250-hPa streamfunction is found in the subtropics 
                         and lower midlatitudes. The small regions in the tropics with more 
                         than 30% of the total variance in the IA band, during the austral 
                         summer correspond to the main anomalous ENSO-related circulation 
                         centers. The 250-hPa velocity potential shows maxima in total and 
                         IS variance centered in the tropics. The IA variance is generally 
                         quite small, except over Indonesia and the eastem tropical 
                         Pacific, consistent with ENSO-re- lated anomalies. Seasonality is 
                         evident in the variance patterns for ali variables. Maximum 
                         variability is observed in the winter hemisphere for SLP and 
                         250-hPa streamfunction and during the austral summer for OLR and 
                         250- hPa velocity potential.",
           copyholder = "SID/SCD",
                 issn = "0102-7786",
             language = "en",
           targetfile = "Kayano.Tropical.pdf",
        urlaccessdate = "10 maio 2024"
}