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@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 = "28 nov. 2020"
}


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