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Titre :
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Temperature and emissivity retrieval from remotely sensed images using the grey body emissivity method
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Auteurs :
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A. Barducci ;
I. Pippi
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Type de document :
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article/chapitre/communication
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Année de publication :
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1996
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Format :
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p. 681-695
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Langues:
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= Anglais
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Catégories :
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TELEDETECTION
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Mots-clés:
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TELEDETECTION
;
MODELE DE SIMULATION
;
SIMULATION NUMERIQUE
;
TEMPERATURE
;
IMAGE SATELLITAIRE
;
INFRAROUGE
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Résumé :
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The problem of extracting temperature and emissivity information from thermal infrared multispectral radiance data is of great importance in remote sensing applications. A new method for emissivity and temperature retrieval has been developed in our laboratory which is based on the assumption that emissivity is a slowly varying function of wavelength. It is shown that this assumption holds true for many kinds of natural targets. The resulting model is called "grey body emissivity", and may be used to retrieve the emissivity of soils and other natural materials. Comparisons with other models are carried out utilizing remotely sensed images, laboratory measurements, and numerical simulations. Finally, we investigate the emissivity dependence on the viewing angle.
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Source :
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IEEE transactions on geoscience and remote sensing, vol. 34, n° 3
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