Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.15809/irriga.2019v1n1p48-55 http://hdl.handle.net/11449/221396 |
Resumo: | Remote sensing algorithms are well known to estimate surface energy fluxes in regional to global scales with low cost. The remote sensing approach has an advantage of estimating evapotranspiration (ET) on larger spatiotemporal scales when compared with traditional methods. This study compared the result of ET estimates from the “Simple Algorithm for Evapotranspiration Retrieving” (SAFER) and “Mapping Evapotranspiration at high Resolution with Internal Calibration” (METRIC) models on varied land uses of a subtropical area located in Southeast Brazil by using a image from the sensor OLI of LANDSAT-8. The results showed similarity of ET estimate from both models, although slight deviation especially at high ET values. It happened due differences as the need of anchor pixel in METRIC, which requires two points with extrem thermohydrological conditions in the same area. Minimum ground data requirement is the major advantage of the METRIC over the SAFER model. The maximum value, the sum and ET range by METRIC was higher than SAFER. This study has considered both models feasible for estimation of ET from satellite data in the study area. |
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Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of BrazilComparação de modelos de evapotranspiração real safer e metric em uma área subtropical do BrasilAgriwaterLandsat-8ModellingRemote sensingSuperficial temperatureRemote sensing algorithms are well known to estimate surface energy fluxes in regional to global scales with low cost. The remote sensing approach has an advantage of estimating evapotranspiration (ET) on larger spatiotemporal scales when compared with traditional methods. This study compared the result of ET estimates from the “Simple Algorithm for Evapotranspiration Retrieving” (SAFER) and “Mapping Evapotranspiration at high Resolution with Internal Calibration” (METRIC) models on varied land uses of a subtropical area located in Southeast Brazil by using a image from the sensor OLI of LANDSAT-8. The results showed similarity of ET estimate from both models, although slight deviation especially at high ET values. It happened due differences as the need of anchor pixel in METRIC, which requires two points with extrem thermohydrological conditions in the same area. Minimum ground data requirement is the major advantage of the METRIC over the SAFER model. The maximum value, the sum and ET range by METRIC was higher than SAFER. This study has considered both models feasible for estimation of ET from satellite data in the study area.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Agronomical Sciences Faculty Universidade Estadual Paulista, Av. Universitária, 3780, Altos do ParaísoSchool of Sciences and Engineering Universidade Estadual Paulista, Rua Domingos da Costa Lopes,780, Jd. ItaipuDepartment of Hydrogeology Institute of Technological Research (IPT), Av. Prof. Almeida Prado, 532, Cid. Universitária – ButantãAgronomical Sciences Faculty Universidade Estadual Paulista, Av. Universitária, 3780, Altos do ParaísoSchool of Sciences and Engineering Universidade Estadual Paulista, Rua Domingos da Costa Lopes,780, Jd. ItaipuFAPESP: 2014/04524-7FAPESP: 2016/09737-4Universidade Estadual Paulista (UNESP)Institute of Technological Research (IPT)SILVA, César de Oliveira Ferreira [UNESP]Manzione, Rodrigo Lilla [UNESP]Filho, José Luiz Albuquerque2022-04-28T19:28:07Z2022-04-28T19:28:07Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article48-55http://dx.doi.org/10.15809/irriga.2019v1n1p48-55IRRIGA, v. 1, n. 1InovagriSpecialEdition, p. 48-55, 2019.1808-37651413-7895http://hdl.handle.net/11449/22139610.15809/irriga.2019v1n1p48-552-s2.0-85074877995Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIRRIGAinfo:eu-repo/semantics/openAccess2022-04-28T19:28:07Zoai:repositorio.unesp.br:11449/221396Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:05:40.937479Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil Comparação de modelos de evapotranspiração real safer e metric em uma área subtropical do Brasil |
title |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
spellingShingle |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil SILVA, César de Oliveira Ferreira [UNESP] Agriwater Landsat-8 Modelling Remote sensing Superficial temperature |
title_short |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
title_full |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
title_fullStr |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
title_full_unstemmed |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
title_sort |
Comparison of safer and metric-based actual evapotranspiration models in a subtropical area of Brazil |
author |
SILVA, César de Oliveira Ferreira [UNESP] |
author_facet |
SILVA, César de Oliveira Ferreira [UNESP] Manzione, Rodrigo Lilla [UNESP] Filho, José Luiz Albuquerque |
author_role |
author |
author2 |
Manzione, Rodrigo Lilla [UNESP] Filho, José Luiz Albuquerque |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Institute of Technological Research (IPT) |
dc.contributor.author.fl_str_mv |
SILVA, César de Oliveira Ferreira [UNESP] Manzione, Rodrigo Lilla [UNESP] Filho, José Luiz Albuquerque |
dc.subject.por.fl_str_mv |
Agriwater Landsat-8 Modelling Remote sensing Superficial temperature |
topic |
Agriwater Landsat-8 Modelling Remote sensing Superficial temperature |
description |
Remote sensing algorithms are well known to estimate surface energy fluxes in regional to global scales with low cost. The remote sensing approach has an advantage of estimating evapotranspiration (ET) on larger spatiotemporal scales when compared with traditional methods. This study compared the result of ET estimates from the “Simple Algorithm for Evapotranspiration Retrieving” (SAFER) and “Mapping Evapotranspiration at high Resolution with Internal Calibration” (METRIC) models on varied land uses of a subtropical area located in Southeast Brazil by using a image from the sensor OLI of LANDSAT-8. The results showed similarity of ET estimate from both models, although slight deviation especially at high ET values. It happened due differences as the need of anchor pixel in METRIC, which requires two points with extrem thermohydrological conditions in the same area. Minimum ground data requirement is the major advantage of the METRIC over the SAFER model. The maximum value, the sum and ET range by METRIC was higher than SAFER. This study has considered both models feasible for estimation of ET from satellite data in the study area. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2022-04-28T19:28:07Z 2022-04-28T19:28:07Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.15809/irriga.2019v1n1p48-55 IRRIGA, v. 1, n. 1InovagriSpecialEdition, p. 48-55, 2019. 1808-3765 1413-7895 http://hdl.handle.net/11449/221396 10.15809/irriga.2019v1n1p48-55 2-s2.0-85074877995 |
url |
http://dx.doi.org/10.15809/irriga.2019v1n1p48-55 http://hdl.handle.net/11449/221396 |
identifier_str_mv |
IRRIGA, v. 1, n. 1InovagriSpecialEdition, p. 48-55, 2019. 1808-3765 1413-7895 10.15809/irriga.2019v1n1p48-55 2-s2.0-85074877995 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
IRRIGA |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
48-55 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128754705235968 |