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

Research output: Contribution to conferencePaper

43 Scopus citations

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 languageAmerican English
Pages81-89
Number of pages9
DOIs
StatePublished - 20 Nov 2000
EventAgricultural and Forest Meteorology -
Duration: 20 Nov 2000 → …

Conference

ConferenceAgricultural and Forest Meteorology
Period20/11/00 → …

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