Title :
Studies of BRDF in conifer and deciduous boreal forests using the 4-scale model and airborne POLDER and ground-based PARABOLA measurements
Author :
Chen, Jing M. ; Leblanc, Sylvain G. ; Cihlar, Josef ; Bicheron, Patrice ; Leroy, Marc ; Deering, Donald ; Eck, Tom
Author_Institution :
Canada Centre for Remote Sensing, Ottawa, Ont., Canada
Abstract :
An investigation of directional reflectance of boreal forests is conducted using airborne POLDER (1994) and ground-based PARABOLA measurements (1995) and the 4-Scale model (1997). The model simulates well the pronounced hotspots observed by POLDER and the slight bowl shape in the forward scattering direction observed by PARABOLA. The model is also used to demonstrate the importance of branch architecture in the directionality of NDVI calculated from the red and near infrared reflectance
Keywords :
forestry; geophysical techniques; infrared imaging; remote sensing; 4-scale model; BRDF; IR imaging; NDVI; PARABOLA measurements; airborne POLDER; bidirectional reflectance distribution function; bowl shape; branch architecture; canopy structure; conifer; deciduous boreal forest; directionality; forestry; forward scattering direction; geophysical measurement technique; hotspot; infrared imaging; near infrared reflectance; optical imaging; red region; remote sensing; vegetation mapping; visible region; Atmosphere; Atmospheric measurements; Atmospheric modeling; Geometrical optics; Optical scattering; Optical surface waves; Reflectivity; Remote sensing; Solid modeling; Surface treatment;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615828
