Title :
A coupled canopy-soil thermal emission model for forests
Author :
Smith, J.A. ; Balick, L.K. ; Scoggins, R.K.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Abstract :
The underlying terrain temperature distributions of vegetative and non-vegetative surfaces is a result of complex, time-varying physical processes which compound the interpretation of both long-wave thermal imagery and radiobrightness observations in the passive microwave regime. Forest canopies offer a particular challenge and in this paper the authors describe a coupled canopy-soil thermal emission model which links a time-dependent soil temperature profile submodel with a steady-state vegetation model. Root mean square errors in modeled versus measured canopy temperatures were less than 1.5 degrees C under both cloudy and sunlit conditions
Keywords :
atmospheric boundary layer; atmospheric techniques; atmospheric temperature; forestry; geophysical techniques; infrared imaging; meteorology; microwave measurement; radiometry; remote sensing; terrestrial heat; atmosphere temperature; boundary layer; coupled canopy soil thermal emission model; forest; forestry; long-wave thermal imagery; measurement technique; meteorology; radiobrightness observations; remote sensing; terrain temperature distribution; terrestrial heat; thermal radiation; vegetation mapping land surface; Absorption; Energy measurement; Equations; Heat transfer; Soil; Steady-state; Temperature distribution; Temperature measurement; Temperature sensors; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.520446
