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

dc.contributor.authorFeitosa, Diego G. [UNESP]
dc.contributor.authorHernandez, Fernando B. T. [UNESP]
dc.contributor.authorFranco, Renato A. M. [UNESP]
dc.contributor.authorTeixeira, Antonio H. C.
dc.contributor.authorNeale, Christopher M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionWater for Food Global Institute at the University of Nebraska
dc.date.accessioned2018-12-11T16:45:46Z
dc.date.available2018-12-11T16:45:46Z
dc.date.issued2016-01-01
dc.description.abstractThe 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State, has been undergoing significant changes in agricultural land use and cover since 2006, as pasture fields have been replaced by sugarcane crop.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.en
dc.description.affiliationUNESP-São Paulo State University, P.O. Box 34
dc.description.affiliationEmbrapa Satellite Monitoring Campinas
dc.description.affiliationWater for Food Global Institute at the University of Nebraska
dc.description.affiliationUnespUNESP-São Paulo State University, P.O. Box 34
dc.identifierhttp://dx.doi.org/10.1117/12.2242137
dc.identifier.citationProceedings of SPIE - The International Society for Optical Engineering, v. 9998.
dc.identifier.doi10.1117/12.2242137
dc.identifier.file2-s2.0-85011017843.pdf
dc.identifier.issn1996-756X
dc.identifier.issn0277-786X
dc.identifier.scopus2-s2.0-85011017843
dc.identifier.urihttp://hdl.handle.net/11449/169411
dc.language.isoeng
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectLatent heat flux
dc.subjectNet radiation
dc.subjectSensible heat flux
dc.subjectSugar cane
dc.titleEnergy balance in the watershed of Ipê, Northwestern São Paulo State, Brazilen
dc.typeTrabalho apresentado em evento
dspace.entity.typePublication
unesp.author.lattes7276242706611764[2]
unesp.author.orcid0000-0001-9241-243X[2]

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