@Article{FranchitoRaoGanSant:2010:OnEnRa,
author = "Franchito, Sergio Henrique and Rao, V. B. and Gan, Manoel Alonso
and Santo, C. M. E.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Onset and end of the rainy season and crop yields in Sao Paulo
State",
journal = "Geof{\'{\i}}sica Internacional",
year = "2010",
volume = "49",
number = "2",
pages = "69--76",
keywords = "Rainy season in S{\~a}o Paulo State, corn yields, El Niņo/La
Niņa.",
abstract = "The relationships between the rainy season and corn yields in
S{\~a}o Paulo State were investigated. The results showed that
rainfall and corn yields are strongly positively correlated in
most of the region, particularly in the northeastern, eastern,
northwestern and western parts of the state (i.e. values are
higher than 0.5 significant at 95% confidence level). The analysis
of the trends in the duration of the rainy season and the
associated accumulated precipitation showed a tendency of higher
precipitation and shorter rainy seasons. It has been suggested to
be due to global warming. Although rainfall and crop yields were
positively correlated, an increase in heavy rainfall events in
future may lead to landslides, flash floods and consequently crop
damage. During the period 1970-2003 there was an increase of the
rainy season and rainfall in strong El Niņo episodes while in the
case of La Niņa events the rainy season was shorter and the
rainfall decreased. Results of case studies considering the
1997-98 El Niņo and the 1998-99 La Niņa suggested that the
increase (decrease) of the duration of the rainy season during the
El Niņo (La Niņa) event is associated with the increase (decrease)
of corn yields in S{\~a}o Paulo State. Further studies with a
record of corn yields longer than 14 years and considering other
El Niņo/La Niņa episodes are needed to obtain a firm connection
between corn yields and ENSO events in S{\~a}o Paulo State.",
issn = "0016-7169",
label = "lattes: 5465249419038855 1 FranchitoRaoGanSant:2010:OnEnRa",
language = "pt",
targetfile = "franchito.pdf",
urlaccessdate = "28 mar. 2024"
}