@Article{RaoFranEspíGan:2016:SeVaTr,
author = "Rao, Vadlamudi Brahmananda and Franchito, S{\'e}rgio Henrique and
Esp{\'{\i}}rito Santo, Clovis Monteiro do and Gan, Manoel
Alonso",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "An update on the rainfall characteristics of Brazil: seasonal
variations and trends in 1979-2011",
journal = "International Journal of Climatology",
year = "2016",
volume = "36",
number = "1",
pages = "291--302",
month = "Jan.",
keywords = "rainfall over Brazil, tendencies of rainfall over Brazil, river
discharges in Brazil.",
abstract = "We studied rainfall characteristics of Brazil for the period
19792011. This is an update for an earlier study with data from
1958 to 1978. We compared the three consecutive wet and dry months
in the two data sets. In the northern most part rainy season
earlier was in April to July and now it is occurring later. In a
large part of the south central region the rainy season in austral
summer and dry season in austral winter did not change. However,
to the east of this region rainy season in the latter data occurs
earlier. Calculation of linear tendencies showed, that over the
northern Amazon region there is a significant increase of
rainfall. This agreed with previous results. Over this region dry
season is becoming drier and wet season wetter. In the west of
Northeast Brazil (NEB) there is an increase of rainfall. In
southeast Brazil there is a region of highly significant decrease
of rainfall in both wet and dry seasons. This is confirmed in our
analysis on river discharges in Sao Paulo and Minas Gerais states.
The negative tendencies in rainfall have great impact on the
hydroelectric generation not only in this region but also at the
national level because the hydroelectric dams furnish energy on a
national level. The increase in rainfall in Northern Amazon is
probably associated with Atlantic warming that resulted in higher
moisture transport from east. The decrease of rainfall in
southeast Brazil seems to be associated with the plummet of rain
producing systems from south due to increase of mean sea level
pressure in the south.",
doi = "10.1002/joc.4345",
url = "http://dx.doi.org/10.1002/joc.4345",
issn = "0899-8418",
label = "lattes: 5465249419038855 2 RaoFranSantGan:2015:SeVaTr",
language = "en",
targetfile = "rao_update.pdf",
urlaccessdate = "27 abr. 2024"
}