Title :
Role of albedo in sensing soil moisture under vegetation with passive L-band algorithms
Author :
Lang, Roger H. ; Utku, Cuneyt ; O´Neill, Peggy E. ; Tsegaye, T.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., George Washington Univ., DC
Abstract :
Relations between various definitions of albedo for a layer of random discrete scatterers are established. Albedo and attenuation values are obtained for soybeans and corn using a discrete model. Attenuation values are also obtained using an empirical approach. Brightness temperatures, computed by transport theory with these albedo and attenuation values, are compared with the measured brightness temperature values for soybeans and corn
Keywords :
albedo; crops; moisture; remote sensing; soil; transport processes; albedo; passive L-band algorithm; random discrete scatterer layer; remote sensing; soil moisture; soybeans/corn brightness temperature; transport theory; vegetation attenuation value; Attenuation; Brightness temperature; Crops; Hydrology; L-band; Particle scattering; Permittivity measurement; Remote sensing; Soil moisture; Vegetation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1369031
