REMOTE-SENSING OF LAND-SURFACE TEMPERATURE - THE DIRECTIONAL VIEWING EFFECT

Citation
Ja. Smith et al., REMOTE-SENSING OF LAND-SURFACE TEMPERATURE - THE DIRECTIONAL VIEWING EFFECT, IEEE transactions on geoscience and remote sensing, 35(4), 1997, pp. 972-974
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic","Geochemitry & Geophysics","Remote Sensing
ISSN journal
01962892
Volume
35
Issue
4
Year of publication
1997
Pages
972 - 974
Database
ISI
SICI code
0196-2892(1997)35:4<972:ROLT-T>2.0.ZU;2-Z
Abstract
Land surface temperature and emissivity products are currently being d erived from satellite and aircraft remote sensing data using a variety of techniques to correct for atmospheric effects. Implicit in the com monly employed approaches is the assumption of isotropy in directional thermal infrared exitance. Our theoretical analyzes indicate angular variations in apparent infrared temperature will typically yield land surface temperature errors ranging from 1 to 4 degrees C unless correc tive measures are applied.