@Article{KulmanReiSouPirSau:2014:OcEsRi,
author = "Kulman, Denilson and Reis, Janete Teresinha and Souza,
Ang{\'e}lica Cargnin de and Pires, Carlos Alberto da Fonseca and
Sausen, T{\^a}nia Maria",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {} and {}
and {} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Ocorr{\^e}ncia de Estiagem no Rio Grande do Sul no
Per{\'{\i}}odo de 1981 {\`a} 2011",
journal = "Ci{\^e}ncia e Natura",
year = "2014",
volume = "36",
number = "3",
pages = "441– 449",
month = "set.-dez.",
keywords = "estiagem, ocorr{\^e}ncia, Krigagem, espacializa{\c{c}}{\~a}o,
Drought, occurrence, Kriging, spatialization.",
abstract = "A estiagem {\'e} um fen{\^o}meno natural, mas na presen{\c{c}}a
humana vem causando enormes preju{\'{\i}}zos
socioecon{\^o}micos no Estado do Rio Grande do Sul,
principalmente, no setor agropecu{\'a}rio. O objetivo principal
desse trabalho consiste na espacializa{\c{c}}{\~a}o da
ocorr{\^e}ncia de estiagem no Rio Grande do Sul, no
per{\'{\i}}odo de 1981 a 2011, utilizando o m{\'e}todo da
Krigagem. A partir da Krigagem foram gerados tr{\^e}s mapas
divididos por d{\'e}cadas e um mapa do somat{\'o}rio dos 31
anos, al{\'e}m de um mapa da divis{\~a}o municipal. Verificou-se
que a maior ocorr{\^e}ncia de estiagem concentra-se na
por{\c{c}}{\~a}o sudoeste do Estado, vis{\'{\i}}vel tanto na
espacializa{\c{c}}{\~a}o pela divis{\~a}o municipal quanto pelo
zoneamento realizado por meio da Krigagem. Levando em
considera{\c{c}}{\~a}o a espacializa{\c{c}}{\~a}o obtida para
todo o per{\'{\i}}odo observa-se a diminui{\c{c}}{\~a}o das
{\'a}reas de grande ocorr{\^e}ncia de estiagem no oeste do
Estado e das {\'a}reas de baixa ocorr{\^e}ncia na
por{\c{c}}{\~a}o leste do Estado. Com isso, espera-se contribuir
no planejamento e investimento visando {\`a}
diminui{\c{c}}{\~a}o de perdas econ{\^o}micas, principalmente
no setor agropecu{\'a}rio no estado. ABSTRACT: The drought is a
natural phenomenon, but the human presence is causing huge
socio-economic losses in the state of Rio Grande do Sul, mainly in
the agricultural sector. The main objective of this work is the
spatialization of the occurrence of drought in the Rio Grande do
Sul, in the period 1981-2011, using the Kriging method. As from
the Kriging three maps divided for decades and one map of the
summation of the 31 years considered were generated, besides a map
drawn up using the municipal division. It was found that the
higher occurrence of drought is concentrated in the southwestern
portion of the state, visible both in the spatialization of the
municipal division as the zoning performed through Kriging.
Considering the spatialization obtained through of the Kriging for
the whole period it is observed the reduction of the areas of high
occurrence of drought in west of the state and of the areas of low
occurrence in the eastern portion of the state. With this, we
expect to contribute in planning and investment, aiming to
reducing economic losses, especially in the agricultural sector in
the state.",
doi = "10.5902/2179460X13205",
url = "http://dx.doi.org/10.5902/2179460X13205",
issn = "0100-8307 and 2179-460X",
label = "self-archiving-INPE-MCTI-GOV-BR",
language = "pt",
targetfile = "13205-68458-1-PB.pdf",
urlaccessdate = "08 maio 2024"
}