<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wang, Y.</style></author><author><style face="normal" font="default" size="100%">Davis, F. W.</style></author><author><style face="normal" font="default" size="100%">Melack, J. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Simulated and Observed Backscatter at P-, L-, and C-Bands from Ponderosa Pine Stands</style></title><secondary-title><style face="normal" font="default" size="100%">IEEE Transactions on Geoscience &amp; Remote Sensing</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Electrical &amp; electronic.</style></keyword><keyword><style  face="normal" font="default" size="100%">Radar. Scattering. Model.</style></keyword><keyword><style  face="normal" font="default" size="100%">Reprint available from: Wang Y. UNIV CALIF SANTA BARBARA, CTR REMOTE</style></keyword><keyword><style  face="normal" font="default" size="100%">SENSING &amp; ENVIRONM OPT, SANTA BARBARA, CA 93106, USA.</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1993</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">31</style></volume><pages><style face="normal" font="default" size="100%">871-879</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We compared the output of the Santa Barbara microwave canopy backscatter model to polarimetric synthetic aperture radar (SAR) data for three ponderosa pine stands (ST-2, ST-11, and SP-2) with discontinuous tree canopies near Mt. Shasta, California, at P-band (0.68-m wavelength), L-band (0.235-m wavelength), and C-band (0.056-m wavelength). Given the SAR data calibration uncertainty, the model made good predictions of the P-HH, P-VV, L-HH, C-HH, and C-HV backscatter for the three stands, and the P-HV and L-HV backscatter for ST-2 and SP-2. The model underestimated C-VV for the three stands, and P-HV, L-HV, and L-VV backscatter for ST-11. The observed and modeled VV-HH phase differences were similar or equal to 0 degrees for the three stands at C-band and L-band, and for SP-2 at P-band. At P-band, the observed and modeled VV-HH phase differences were at least -80 degrees for ST-2 and ST-11, which indicates that double-bounce scattering contributes to the total backscatter for the two stands. [References: 10] 10</style></abstract><notes><style face="normal" font="default" size="100%">English Article Current Contents/Engineering, Technology &amp; Applied Sciences. Reprint available from: Wang Y UNIV CALIF SANTA BARBARA CTR REMOTE SENSING &amp; ENVIRONM OPT SANTA BARBARA, CA 93106 USA 0015</style></notes></record></records></xml>