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Spatial variability of coffee plant water consumption based on the SEBAL algorithm Scientia Agricola
Costa,Jéfferson de Oliveira; Coelho,Rubens Duarte; Wolff,Wagner; José,Jefferson Vieira; Folegatti,Marcos Vinicius; Ferraz,Silvio Frosini de Barros.
ABSTRACT: Awareness of evapotranspiration (ET) and crop coefficient (Kc) is necessary for irrigation management in coffee crops. ET and Kc spatial variabilities are disregarded in traditional methods. Methods based on radiometric measurements have potential to obtain these spatialized variables. The Kc curve and spatial variability of actual evapotranspiration (ETa) were determined using images from Landsat 8 satellite. We used images of young and adult coffee plantations from OLI (Operational Land Imager) and TIRS (Thermal Infrared Sensor) sensors over a two-year period. Evapotranspiration was estimated using the Surface Energy Balance Algorithm for Land (SEBAL). Moreover, the reference evapotranspiration (ETo) was estimated through the Penman-Monteith...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Evapotranspiration; Crop coefficient; Satellite.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001200093
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