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| Titel |
Sensible and latent heat flux from radiometric surface temperatures at the regional scale: methodology and evaluation |
| VerfasserIn |
F. Miglietta, B. Gioli, Y. Brunet, R. W. A. Hutjes, A. Matese, C. Sarrat, A. Zaldei |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 6, no. 10 ; Nr. 6, no. 10 (2009-10-02), S.1975-1986 |
| Datensatznummer |
250004026
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| Publikation (Nr.) |
 copernicus.org/bg-6-1975-2009.pdf |
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| Zusammenfassung |
| The CarboEurope Regional Experiment Strategy (CERES) was designed to develop
and test a range of methodologies to assess regional surface energy and mass
exchange of a large study area in the South-Western part of France. This
paper describes a methodology to estimate sensible and latent heat fluxes on
the basis of net radiation, surface radiometric temperature measurements and
information obtained from available products derived from the Meteosat
Second Generation (MSG) geostationary meteorological satellite, weather
stations and ground-based eddy covariance towers. It is based on a
simplified bulk formulation of sensible heat flux that considers the degree
of coupling between the vegetation and the atmosphere and estimates latent
heat as the residual term of net radiation. Estimates of regional energy
fluxes obtained in this way are validated at the regional scale by means of
a comparison with direct flux measurements made by airborne eddy-covariance.
The results show an overall good matching between airborne fluxes and
estimates of sensible and latent heat flux obtained from radiometric surface
temperatures that holds
for different weather conditions and different land use types. The overall
applicability of the proposed methodology to regional studies is discussed. |
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