NDLI: Simulated and observed backscatter at P-, L-, and C-bands from ponderosa pine stands

Content Provider	IEEE Xplore Digital Library
Author	Wang, Y. Davis, F.W. Melack, J.M.
Copyright Year	1980
Abstract	The authors 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 approximately=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.<>
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	871
Ending Page	879
Page Count	9
File Size	801303
File Format	PDF
ISSN	01962892
Volume Number	31
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Backscatter Predictive models Radar scattering Optical scattering L-band Regression tree analysis Equations Synthetic aperture radar Testing Polarimetric synthetic aperture radar
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

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