Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/1260 |
Resumo: | Evapotranspiration is one of the most important regulator factors for hydric availability, climate and weather, both in global and local scale. The constraints due local measuring motivated the development of techniques involving remote sensing information to estimate evapotranspiration in large areas. The objective of this work was to evaluate the accuracy of SEBAL algorithm in the estimation of the components of surface energy balance equation. 28 images of the Terra/MODIS sensor were used to test the algorithm. The estimated data using SEBAL was analyzed by comparison with local measures, obtained by correlation of turbulent vortexes. The results indicate that the methodology used in this paper presented variations of 57% in latent heat fluxes and overestimation 1,6 mm/dia the evapotranpiration in cerrado sensu stricto areas. The low spatial resolution of the images could have contributed significantly in the increment of the error of the obtained values, because of the various types of land use and land cover contained in the image resolution cell. Nevertheless, the preliminary results confirm the Terra/MODIS sensor potential in the estimation of instantaneous evapotranspiration. |
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Ruhoff, Anderson LuisNegrón-Juárez, Robinson IsaacFreitas, Ramon MoraisCollischonn, WalterRocha, Humberto Ribeiro da2011-11-01T20:01:17Z2011-11-01T20:01:17Z2009RUHOFF, A.L. et al. Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais eletrônicos... Natal: INPE, 2009. Disponível em: <http://marte.dpi.inpe.br/col/dpi.inpe.br/sbsr@80/2008/11.18.02.47/doc/4829-4836.pdf> Acesso em: 26 out. 2011.978-85-17-00044-7http://repositorio.furg.br/handle/1/1260Evapotranspiration is one of the most important regulator factors for hydric availability, climate and weather, both in global and local scale. The constraints due local measuring motivated the development of techniques involving remote sensing information to estimate evapotranspiration in large areas. The objective of this work was to evaluate the accuracy of SEBAL algorithm in the estimation of the components of surface energy balance equation. 28 images of the Terra/MODIS sensor were used to test the algorithm. The estimated data using SEBAL was analyzed by comparison with local measures, obtained by correlation of turbulent vortexes. The results indicate that the methodology used in this paper presented variations of 57% in latent heat fluxes and overestimation 1,6 mm/dia the evapotranpiration in cerrado sensu stricto areas. The low spatial resolution of the images could have contributed significantly in the increment of the error of the obtained values, because of the various types of land use and land cover contained in the image resolution cell. Nevertheless, the preliminary results confirm the Terra/MODIS sensor potential in the estimation of instantaneous evapotranspiration.porEvapotranspirationEnergy fluxesSEBALHydrological modelMODISVariabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu strictoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALVariabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto.pdfVariabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto.pdfapplication/pdf428774https://repositorio.furg.br/bitstream/1/1260/1/Variabilidade%20dos%20fluxos%20de%20calor%20sens%c3%advel%20e%20latente%20em%20%c3%a1reas%20de%20cerrado%20sensu%20stricto.pdf32b5f370ea0641b38c086488821a09d8MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/1260/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/12602011-11-01 18:01:17.581open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-11-01T20:01:17Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
title |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
spellingShingle |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto Ruhoff, Anderson Luis Evapotranspiration Energy fluxes SEBAL Hydrological model MODIS |
title_short |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
title_full |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
title_fullStr |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
title_full_unstemmed |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
title_sort |
Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto |
author |
Ruhoff, Anderson Luis |
author_facet |
Ruhoff, Anderson Luis Negrón-Juárez, Robinson Isaac Freitas, Ramon Morais Collischonn, Walter Rocha, Humberto Ribeiro da |
author_role |
author |
author2 |
Negrón-Juárez, Robinson Isaac Freitas, Ramon Morais Collischonn, Walter Rocha, Humberto Ribeiro da |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Ruhoff, Anderson Luis Negrón-Juárez, Robinson Isaac Freitas, Ramon Morais Collischonn, Walter Rocha, Humberto Ribeiro da |
dc.subject.por.fl_str_mv |
Evapotranspiration Energy fluxes SEBAL Hydrological model MODIS |
topic |
Evapotranspiration Energy fluxes SEBAL Hydrological model MODIS |
description |
Evapotranspiration is one of the most important regulator factors for hydric availability, climate and weather, both in global and local scale. The constraints due local measuring motivated the development of techniques involving remote sensing information to estimate evapotranspiration in large areas. The objective of this work was to evaluate the accuracy of SEBAL algorithm in the estimation of the components of surface energy balance equation. 28 images of the Terra/MODIS sensor were used to test the algorithm. The estimated data using SEBAL was analyzed by comparison with local measures, obtained by correlation of turbulent vortexes. The results indicate that the methodology used in this paper presented variations of 57% in latent heat fluxes and overestimation 1,6 mm/dia the evapotranpiration in cerrado sensu stricto areas. The low spatial resolution of the images could have contributed significantly in the increment of the error of the obtained values, because of the various types of land use and land cover contained in the image resolution cell. Nevertheless, the preliminary results confirm the Terra/MODIS sensor potential in the estimation of instantaneous evapotranspiration. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2011-11-01T20:01:17Z |
dc.date.available.fl_str_mv |
2011-11-01T20:01:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
RUHOFF, A.L. et al. Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais eletrônicos... Natal: INPE, 2009. Disponível em: <http://marte.dpi.inpe.br/col/dpi.inpe.br/sbsr@80/2008/11.18.02.47/doc/4829-4836.pdf> Acesso em: 26 out. 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/1260 |
dc.identifier.isbn.none.fl_str_mv |
978-85-17-00044-7 |
identifier_str_mv |
RUHOFF, A.L. et al. Variabilidade dos fluxos de calor sensível e latente em áreas de cerrado sensu stricto. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais eletrônicos... Natal: INPE, 2009. Disponível em: <http://marte.dpi.inpe.br/col/dpi.inpe.br/sbsr@80/2008/11.18.02.47/doc/4829-4836.pdf> Acesso em: 26 out. 2011. 978-85-17-00044-7 |
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http://repositorio.furg.br/handle/1/1260 |
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