Comparison of sensible heat flux estimates using AVHRR with scintillometer measurements over semi-arid grassland in northwest Mexico

C. J. Watts; A. Chehbouni; J. C. Rodriguez; Y. H. Kerr; O. Hartogensis; H. A.R. De Bruin

doi:10.1016/S0168-1923(00)00188-X

Comparison of sensible heat flux estimates using AVHRR with scintillometer measurements over semi-arid grassland in northwest Mexico

C. J. Watts, A. Chehbouni, J. C. Rodriguez, Y. H. Kerr, O. Hartogensis, H. A.R. De Bruin

Departamento de Agricultura y Ganadería

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Abstract

The problems associated with the validation of satellite-derived estimates of the surface fluxes are discussed and the possibility of using the large aperture scintillometer is investigated. Simple models are described to derive surface temperature and sensible heat flux from the advanced very high resolution radiometer (AVHRR). Data were collected over an extensive site of semi-arid grassland in northwest Mexico during the summer of 1997 as part of the semi-arid land-surface-atmosphere (SALSA) program. Comparison of surface temperature derived from AVHRR with that derived from a ground-based infrared thermometer showed an RMSE of around 2°C, while estimates of sensible heat flux derived from AVHRR compared well with measurements using either eddy correlation or a large aperture scintillometer. (C) 2000 Elsevier Science B.V.

Original language	American English
Pages	81-89
Number of pages	9
DOIs	https://doi.org/10.1016/S0168-1923(00)00188-X
State	Published - 20 Nov 2000
Event	Agricultural and Forest Meteorology - Duration: 20 Nov 2000 → …

Conference

Conference	Agricultural and Forest Meteorology
Period	20/11/00 → …

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10.1016/S0168-1923(00)00188-X

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title = "Comparison of sensible heat flux estimates using AVHRR with scintillometer measurements over semi-arid grassland in northwest Mexico",

abstract = "The problems associated with the validation of satellite-derived estimates of the surface fluxes are discussed and the possibility of using the large aperture scintillometer is investigated. Simple models are described to derive surface temperature and sensible heat flux from the advanced very high resolution radiometer (AVHRR). Data were collected over an extensive site of semi-arid grassland in northwest Mexico during the summer of 1997 as part of the semi-arid land-surface-atmosphere (SALSA) program. Comparison of surface temperature derived from AVHRR with that derived from a ground-based infrared thermometer showed an RMSE of around 2°C, while estimates of sensible heat flux derived from AVHRR compared well with measurements using either eddy correlation or a large aperture scintillometer. (C) 2000 Elsevier Science B.V.",

author = "Watts, {C. J.} and A. Chehbouni and Rodriguez, {J. C.} and Kerr, {Y. H.} and O. Hartogensis and {De Bruin}, {H. A.R.}",

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doi = "10.1016/S0168-1923(00)00188-X",

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T1 - Comparison of sensible heat flux estimates using AVHRR with scintillometer measurements over semi-arid grassland in northwest Mexico

AU - Watts, C. J.

AU - Chehbouni, A.

AU - Rodriguez, J. C.

AU - Kerr, Y. H.

AU - Hartogensis, O.

AU - De Bruin, H. A.R.

PY - 2000/11/20

Y1 - 2000/11/20

N2 - The problems associated with the validation of satellite-derived estimates of the surface fluxes are discussed and the possibility of using the large aperture scintillometer is investigated. Simple models are described to derive surface temperature and sensible heat flux from the advanced very high resolution radiometer (AVHRR). Data were collected over an extensive site of semi-arid grassland in northwest Mexico during the summer of 1997 as part of the semi-arid land-surface-atmosphere (SALSA) program. Comparison of surface temperature derived from AVHRR with that derived from a ground-based infrared thermometer showed an RMSE of around 2°C, while estimates of sensible heat flux derived from AVHRR compared well with measurements using either eddy correlation or a large aperture scintillometer. (C) 2000 Elsevier Science B.V.

AB - The problems associated with the validation of satellite-derived estimates of the surface fluxes are discussed and the possibility of using the large aperture scintillometer is investigated. Simple models are described to derive surface temperature and sensible heat flux from the advanced very high resolution radiometer (AVHRR). Data were collected over an extensive site of semi-arid grassland in northwest Mexico during the summer of 1997 as part of the semi-arid land-surface-atmosphere (SALSA) program. Comparison of surface temperature derived from AVHRR with that derived from a ground-based infrared thermometer showed an RMSE of around 2°C, while estimates of sensible heat flux derived from AVHRR compared well with measurements using either eddy correlation or a large aperture scintillometer. (C) 2000 Elsevier Science B.V.

U2 - 10.1016/S0168-1923(00)00188-X

DO - 10.1016/S0168-1923(00)00188-X

M3 - Paper

SP - 81

EP - 89

T2 - Agricultural and Forest Meteorology

Y2 - 20 November 2000

ER -

Comparison of sensible heat flux estimates using AVHRR with scintillometer measurements over semi-arid grassland in northwest Mexico

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