Data/hora: 10/06/2024 15:00:16

Biblioteca(s): 	Embrapa Caprinos e Ovinos.	
Data corrente: 	01/08/1992	
Data da última atualização: 	30/11/2023	
Autoria: 	HEILMAN, J. L.; KANEMASU, E. T.; ROSENBERG, J. N.; BLAD, B. L.	
Título: 	Thermal scanner measurement of canopy temperatures to estimate evapotranspiration.	
Ano de publicação: 	1976	
Fonte/Imprenta: 	Remote Sensing of Environment, v. 5, p. 137-145, 1976.	
DOI: 	https://doi.org/10.1016/0034-4257(76)90044-4	
Idioma: 	Inglês	
Conteúdo: 	Abstract: Temperatures of soybean (Glycine max L.), sorghum (Sorghum bicolor L.), and millet (Panicum miliaceum L.), measured with a thermal scanner flown at altitudes of 610 and 1220 m, were used in a resistance form of the energy-balance equation to estimate evapotranspiration (ET). Atmospheric attenuation produced errors of 1 to 6 °C in the scanner measurements. Errors from neglecting emissivity corrections were less than 1.0 °C. A correction procedure relating temperature error to atmospheric precipitable water was applied to the scanner measurements. Estimates of ET using the corrected temperatures differed from lysimetric measurements by -0.40 to 0.1 7 ly/min. It was found that accurately extrapolating scanner measurements to ground level was essential for estimating ET.	
Thesagro: 	Climatologia; Evapotranspiração; Glycine Max; Sorghum Bicolor.	
Thesaurus Nal: 	Evapotranspiration; Panicum miliaceum.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Caprinos e Ovinos (CNPC)	
Exemplares: 	CNPC - (6065-1) - ADD - AP - DD -  -  -  - DIS