Remote sensing of land surface temperature: the directional viewing effect

Author

Smith, James A. ; Chauhan, Narinder S. ; Schmugge, Thomas J. ; Ballard, Jerrell R., Jr.

Author_Institution

NASA Goddard Space Flight Center, Greenbelt, MD, USA

Volume

35

Issue

4

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

972

Lastpage

974

Abstract

Land surface temperature and emissivity products are currently being derived from satellite and aircraft remote sensing data using a variety of techniques to correct for atmospheric effects. Implicit in the commonly employed approaches is the assumption of isotropy in directional thermal infrared exitance. The authors´ theoretical analyses indicate angular variations in apparent infrared temperature will typically yield land surface temperature errors ranging from 1 to 4°C unless corrective measures are applied

Keywords

atmospheric boundary layer; atmospheric techniques; atmospheric temperature; geophysical techniques; radiometry; remote sensing; terrestrial heat; IR radiometry; airborne method; aircraft; angular variation; apparent infrared temperature; atmosphere; boundary layer; directional thermal infrared exitance; directional viewing; emissivity; errors; geology; geophysical measurement technique; geothermal method; infrared method; land surface; satellite remote sensing; temperature; terrain mapping; terrestrial heat; theory; thermal structure; Atmospheric measurements; Land surface; Land surface temperature; Optical surface waves; Remote sensing; Rough surfaces; Soil; Surface roughness; Temperature distribution; Temperature sensors;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.602539

Filename

602539