6533b871fe1ef96bd12d2219

RESEARCH PRODUCT

Canopy directional emissivity: Comparison between models

Juan C. Jiménez-muñozWout VerhoefJosé A. Sobrino

subject

Astrophysics::High Energy Astrophysical PhenomenaAtmospheric correctionSoil ScienceGeologyAtmospheric temperaturePhysics::GeophysicsHeat fluxEvapotranspirationRadianceRadiative transferEmissivityAstrophysics::Solar and Stellar AstrophysicsEnvironmental scienceBidirectional reflectance distribution functionComputers in Earth SciencesRemote sensing

description

Land surface temperature plays an important role in many environmental studies, as for example the estimation of heat fluxes and evapotranspiration. In order to obtain accurate values of land surface temperature, atmospheric, emissivity and angular effects should be corrected. This paper focuses on the analysis of the angular variation of canopy emissivity, which is an important variable that has to be known to correct surface radiances and obtain surface temperatures. Emissivity is also involved in the atmospheric corrections since it appears in the reflected downwelling atmospheric term. For this purpose, five different methods for simulating directional canopy emissivity have been analyzed and

yearjournalcountryeditionlanguage
2005-11-30Remote Sensing of Environment
https://doi.org/10.1016/j.rse.2005.09.005