6533b831fe1ef96bd1299a42
RESEARCH PRODUCT
Estimating the difference between brightness and surface temperatures for a vegetal canopy
Albert Oliososubject
Surface (mathematics)Atmospheric ScienceBrightnessMaterials science010504 meteorology & atmospheric sciences0211 other engineering and technologiesAnalytical chemistry02 engineering and technology01 natural sciencesTemperature measurementOptics[SDV.SA.SF]Life Sciences [q-bio]/Agricultural sciences/Silviculture forestryEmissivityComputingMilieux_MISCELLANEOUS021101 geological & geomatics engineering0105 earth and related environmental sciencesGlobal and Planetary ChangeRadiometerBIOCLIMATOLOGIEbusiness.industryForestrySpectral bands13. Climate actionBrightness temperatureInfrared window[SDV.SA.SF] Life Sciences [q-bio]/Agricultural sciences/Silviculture forestrybusinessAgronomy and Crop Sciencedescription
Abstract The difference between the surface temperature T S and the brightness temperature T b , which can be measured with a thermal infrared radiometer, has been calculated for different surface emissivity values and different atmospheric conditions. These calculations show that T s − T b is often significant even for high surface emissivities and that the spectral band in which the measurements are performed is a key factor in the interpretation of T s − T b . In particular, it is not a simple matter to use the characterisation of the whole spectrum atmospheric radiation to derive T s from T b when the measurements are performed in the 8–14 μm atmospheric window.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-01-01 | Agricultural and Forest Meteorology |