Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil

Detalhes bibliográficos
Autor(a) principal: Feitosa, Diego G. [UNESP]
Data de Publicação: 2016
Outros Autores: Hernandez, Fernando B. T. [UNESP], Franco, Renato A. M. [UNESP], Teixeira, Antonio H. C., Neale, Christopher M.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1117/12.2242137
http://hdl.handle.net/11449/169411
Resumo: The region of Ilha Solteira, in the Northwestern of São Paulo State, has been undergoing significant changes in agricultural land use and cover since 2006, as pasture fields have been replaced by sugarcane crop. This drastic change can lead to a disturbance in the energy balance, affecting the local climate. The aim of this paper was to assess some parameters related to the energy balance of Ipê's watershed, that changed since no sugarcane cultivation in 2006 to 2,164 hectares in 2011, occupying 31% of the catchment area with this important energy crop for the economy and the environment of Brazil. This study was carried out using remote sensing combined with weather data and using the SAFER (Simple Algorithm for Retrieving Evapotranspiration) model applied in 9 Landsat images collected between 2003 and 2011. The results showed a wide variation between the components of energy balance and when considering only the sugarcane crop were verified the increase values of ETa (Actual Evapotranspiration), H/Rn (Sensible Heat Flux/Net Radiation), TS (Surface Temperature), Rl↑ (Emitted longwave), Rl↓ (Incidente longwave) and surface albedo after the sugarcane production over these years. On the other hand, the NDVI, λE/Rn (Latent Heat Flux/Net Radiation) and Rn values (data) decreased in the same period. Also there was satisfactory correlation between NDVI and ETa. The SAFER model showed satisfactory results for studies of energy balance applied in the Northwestern of São Paulo State.
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spelling Energy balance in the watershed of Ipê, Northwestern São Paulo State, BrazilLatent heat fluxNet radiationSensible heat fluxSugar caneThe region of Ilha Solteira, in the Northwestern of São Paulo State, has been undergoing significant changes in agricultural land use and cover since 2006, as pasture fields have been replaced by sugarcane crop. This drastic change can lead to a disturbance in the energy balance, affecting the local climate. The aim of this paper was to assess some parameters related to the energy balance of Ipê's watershed, that changed since no sugarcane cultivation in 2006 to 2,164 hectares in 2011, occupying 31% of the catchment area with this important energy crop for the economy and the environment of Brazil. This study was carried out using remote sensing combined with weather data and using the SAFER (Simple Algorithm for Retrieving Evapotranspiration) model applied in 9 Landsat images collected between 2003 and 2011. The results showed a wide variation between the components of energy balance and when considering only the sugarcane crop were verified the increase values of ETa (Actual Evapotranspiration), H/Rn (Sensible Heat Flux/Net Radiation), TS (Surface Temperature), Rl↑ (Emitted longwave), Rl↓ (Incidente longwave) and surface albedo after the sugarcane production over these years. On the other hand, the NDVI, λE/Rn (Latent Heat Flux/Net Radiation) and Rn values (data) decreased in the same period. Also there was satisfactory correlation between NDVI and ETa. The SAFER model showed satisfactory results for studies of energy balance applied in the Northwestern of São Paulo State.UNESP-São Paulo State University, P.O. Box 34Embrapa Satellite Monitoring CampinasWater for Food Global Institute at the University of NebraskaUNESP-São Paulo State University, P.O. Box 34Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Water for Food Global Institute at the University of NebraskaFeitosa, Diego G. [UNESP]Hernandez, Fernando B. T. [UNESP]Franco, Renato A. M. [UNESP]Teixeira, Antonio H. C.Neale, Christopher M.2018-12-11T16:45:46Z2018-12-11T16:45:46Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1117/12.2242137Proceedings of SPIE - The International Society for Optical Engineering, v. 9998.1996-756X0277-786Xhttp://hdl.handle.net/11449/16941110.1117/12.22421372-s2.0-850110178432-s2.0-85011017843.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of SPIE - The International Society for Optical Engineeringinfo:eu-repo/semantics/openAccess2023-11-11T06:11:38Zoai:repositorio.unesp.br:11449/169411Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-11T06:11:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
title Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
spellingShingle Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
Feitosa, Diego G. [UNESP]
Latent heat flux
Net radiation
Sensible heat flux
Sugar cane
title_short Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
title_full Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
title_fullStr Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
title_full_unstemmed Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
title_sort Energy balance in the watershed of Ipê, Northwestern São Paulo State, Brazil
author Feitosa, Diego G. [UNESP]
author_facet Feitosa, Diego G. [UNESP]
Hernandez, Fernando B. T. [UNESP]
Franco, Renato A. M. [UNESP]
Teixeira, Antonio H. C.
Neale, Christopher M.
author_role author
author2 Hernandez, Fernando B. T. [UNESP]
Franco, Renato A. M. [UNESP]
Teixeira, Antonio H. C.
Neale, Christopher M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Water for Food Global Institute at the University of Nebraska
dc.contributor.author.fl_str_mv Feitosa, Diego G. [UNESP]
Hernandez, Fernando B. T. [UNESP]
Franco, Renato A. M. [UNESP]
Teixeira, Antonio H. C.
Neale, Christopher M.
dc.subject.por.fl_str_mv Latent heat flux
Net radiation
Sensible heat flux
Sugar cane
topic Latent heat flux
Net radiation
Sensible heat flux
Sugar cane
description The region of Ilha Solteira, in the Northwestern of São Paulo State, has been undergoing significant changes in agricultural land use and cover since 2006, as pasture fields have been replaced by sugarcane crop. This drastic change can lead to a disturbance in the energy balance, affecting the local climate. The aim of this paper was to assess some parameters related to the energy balance of Ipê's watershed, that changed since no sugarcane cultivation in 2006 to 2,164 hectares in 2011, occupying 31% of the catchment area with this important energy crop for the economy and the environment of Brazil. This study was carried out using remote sensing combined with weather data and using the SAFER (Simple Algorithm for Retrieving Evapotranspiration) model applied in 9 Landsat images collected between 2003 and 2011. The results showed a wide variation between the components of energy balance and when considering only the sugarcane crop were verified the increase values of ETa (Actual Evapotranspiration), H/Rn (Sensible Heat Flux/Net Radiation), TS (Surface Temperature), Rl↑ (Emitted longwave), Rl↓ (Incidente longwave) and surface albedo after the sugarcane production over these years. On the other hand, the NDVI, λE/Rn (Latent Heat Flux/Net Radiation) and Rn values (data) decreased in the same period. Also there was satisfactory correlation between NDVI and ETa. The SAFER model showed satisfactory results for studies of energy balance applied in the Northwestern of São Paulo State.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
2018-12-11T16:45:46Z
2018-12-11T16:45:46Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1117/12.2242137
Proceedings of SPIE - The International Society for Optical Engineering, v. 9998.
1996-756X
0277-786X
http://hdl.handle.net/11449/169411
10.1117/12.2242137
2-s2.0-85011017843
2-s2.0-85011017843.pdf
url http://dx.doi.org/10.1117/12.2242137
http://hdl.handle.net/11449/169411
identifier_str_mv Proceedings of SPIE - The International Society for Optical Engineering, v. 9998.
1996-756X
0277-786X
10.1117/12.2242137
2-s2.0-85011017843
2-s2.0-85011017843.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Proceedings of SPIE - The International Society for Optical Engineering
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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