REMOTE SENSING OF WATER BALANCE IN PANTANAL

Pantanal, located in the Upper Paraguay basin, is the world’s largest tropical wetland. The maintenance of this ecosystem depends on the water balance since precipitation is seasonal and high losses of water occur due to the high evapotranspiration. Water balance assessment using in situ data is sti...

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Autores principales: Moreira, Adriana Aparecida, Fassoni-Andrade, Alice César, Ruhoff, Anderson Luis, Paiva, Rodrigo Cauduro Dias de
Formato: info:eu-repo/semantics/article
Lenguaje:Inglés
Portugués
Publicado: UFPR 2019
Materias:
Acceso en línea:https://revistas.ufpr.br/raega/article/view/67096
http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/74637
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author Moreira, Adriana Aparecida
Fassoni-Andrade, Alice César
Ruhoff, Anderson Luis
Paiva, Rodrigo Cauduro Dias de
author_facet Moreira, Adriana Aparecida
Fassoni-Andrade, Alice César
Ruhoff, Anderson Luis
Paiva, Rodrigo Cauduro Dias de
author_sort Moreira, Adriana Aparecida
collection Repositorio
description Pantanal, located in the Upper Paraguay basin, is the world’s largest tropical wetland. The maintenance of this ecosystem depends on the water balance since precipitation is seasonal and high losses of water occur due to the high evapotranspiration. Water balance assessment using in situ data is still a challenge due to the large extension of the area and the complexity to be represented. In this study, the water balance in the Upper Paraguay basin was investigated based on hydrological variables derived from remote sensing data. Precipitation, evapotranspiration, and water storage change data were estimated with accuracy by the water balance, but the same was not possible for the discharge. However, high uncertainties in the estimates were verified, mainly during the rainy season. The remote sensing data allowed the identification of the seasonality of hydrological variables in the Pantanal system and in the different regions of the basin: Chaco, Pantanal and Planalto. Water deficit in the basin was observed from March/April to September as well as a positive water balance due to precipitation during the rest of the year. The spatial analysis of the basin showed that in the northern region, the precipitation, the evapotranspiration, and the water storage variation are higher than in the southern region. Results demonstrated that remote sensing data can help in the comprehension of hydrological systems operation, especially in large wetland regions.
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spelling clacso-CLACSO746372022-03-21T18:27:53Z REMOTE SENSING OF WATER BALANCE IN PANTANAL Moreira, Adriana Aparecida Fassoni-Andrade, Alice César Ruhoff, Anderson Luis Paiva, Rodrigo Cauduro Dias de Hidrologia; Climatologia Evapotranspiração; GRACE; Áreas úmidas; Regime hídrico. Pantanal, located in the Upper Paraguay basin, is the world’s largest tropical wetland. The maintenance of this ecosystem depends on the water balance since precipitation is seasonal and high losses of water occur due to the high evapotranspiration. Water balance assessment using in situ data is still a challenge due to the large extension of the area and the complexity to be represented. In this study, the water balance in the Upper Paraguay basin was investigated based on hydrological variables derived from remote sensing data. Precipitation, evapotranspiration, and water storage change data were estimated with accuracy by the water balance, but the same was not possible for the discharge. However, high uncertainties in the estimates were verified, mainly during the rainy season. The remote sensing data allowed the identification of the seasonality of hydrological variables in the Pantanal system and in the different regions of the basin: Chaco, Pantanal and Planalto. Water deficit in the basin was observed from March/April to September as well as a positive water balance due to precipitation during the rest of the year. The spatial analysis of the basin showed that in the northern region, the precipitation, the evapotranspiration, and the water storage variation are higher than in the southern region. Results demonstrated that remote sensing data can help in the comprehension of hydrological systems operation, especially in large wetland regions. 2019-08-28 2022-03-21T18:27:53Z 2022-03-21T18:27:53Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://revistas.ufpr.br/raega/article/view/67096 10.5380/raega.v46i3.67096 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/74637 eng por https://revistas.ufpr.br/raega/article/view/67096/39191 https://revistas.ufpr.br/raega/article/view/67096/39186 Direitos autorais 2019 Raega - O Espaço Geográfico em Análise application/pdf application/pdf UFPR RA'E GA Journal - The Geographic Space in Analysis; v. 46, n. 3 (2019): 7º GeoPantanal - Simpósio de Geotecnologias no Pantanal; 20-32 Raega - O Espaço Geográfico em Análise; v. 46, n. 3 (2019): 7º GeoPantanal - Simpósio de Geotecnologias no Pantanal; 20-32 2177-2738 1516-4136 10.5380/raega.v46i3
spellingShingle Hidrologia; Climatologia
Evapotranspiração; GRACE; Áreas úmidas; Regime hídrico.
Moreira, Adriana Aparecida
Fassoni-Andrade, Alice César
Ruhoff, Anderson Luis
Paiva, Rodrigo Cauduro Dias de
REMOTE SENSING OF WATER BALANCE IN PANTANAL
title REMOTE SENSING OF WATER BALANCE IN PANTANAL
title_full REMOTE SENSING OF WATER BALANCE IN PANTANAL
title_fullStr REMOTE SENSING OF WATER BALANCE IN PANTANAL
title_full_unstemmed REMOTE SENSING OF WATER BALANCE IN PANTANAL
title_short REMOTE SENSING OF WATER BALANCE IN PANTANAL
title_sort remote sensing of water balance in pantanal
topic Hidrologia; Climatologia
Evapotranspiração; GRACE; Áreas úmidas; Regime hídrico.
url https://revistas.ufpr.br/raega/article/view/67096
http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/74637