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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
30/11/2023 |
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Autoria: |
HEILMAN, J. L.; KANEMASU, E. T.; ROSENBERG, J. N.; BLAD, B. L. |
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Título: |
Thermal scanner measurement of canopy temperatures to estimate evapotranspiration. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Remote Sensing of Environment, v. 5, p. 137-145, 1976. |
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DOI: |
https://doi.org/10.1016/0034-4257(76)90044-4 |
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Idioma: |
Inglês |
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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. |
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Thesagro: |
Climatologia; Evapotranspiração; Glycine Max; Sorghum Bicolor. |
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Thesaurus Nal: |
Evapotranspiration; Panicum miliaceum. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01526naa a2200241 a 4500
001 1519937
005 2023-11-30
008 1976 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/0034-4257(76)90044-4$2DOI
100 1 $aHEILMAN, J. L.
245 $aThermal scanner measurement of canopy temperatures to estimate evapotranspiration.$h[electronic resource]
260 $c1976
520 $aAbstract: 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.
650 $aEvapotranspiration
650 $aPanicum miliaceum
650 $aClimatologia
650 $aEvapotranspiração
650 $aGlycine Max
650 $aSorghum Bicolor
700 1 $aKANEMASU, E. T.
700 1 $aROSENBERG, J. N.
700 1 $aBLAD, B. L.
773 $tRemote Sensing of Environment$gv. 5, p. 137-145, 1976.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
