Title :
Radiosity based model for terrain effects on multi-angular views
Author :
Borel, Christoph C. ; Gerstl, Siegfried A W
Author_Institution :
Nonproliferation & Int. Security, Los Alamos Nat. Lab., NM, USA
Abstract :
The Multi-Angular Imaging Spectroradiometer (MISR) will image the Earth from 9 viewing angles and derive atmospheric parameters and surface reflectance. The authors investigate the effects of reflections within a rough terrain on reflectance retrievals with and without terrain correction. A simple wedge model is used to compute the surface radiosities as a function of solar illumination direction. For the 9 MISR view directions the authors compute the apparent reflectance and compare the results with a single scattering model. For a range of slopes and flat surface reflectances they compute how much the apparent reflectance changes
Keywords :
geophysical techniques; remote sensing; IR infrared; MIS; Multi-Angular Imaging Spectroradiometer; geophysical measurement technique; land surface terrain mapping; light reflection; multi-angular view; optical imaging; radiosity based model; reflectance retrieval; remote sensing; rough terrain; solar illumination direction; surface reflectance; terrain correction; terrain effects; viewing angle; visible; wedge model; Atmospheric modeling; Geometry; Goniometers; Light scattering; Lighting; Optical reflection; Reflectivity; Rough surfaces; Snow; Surface roughness;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399533
