NDLI: Multipolarization Radar Images for Geologic Mapping and Vegetation Discrimination

Content Provider	IEEE Xplore Digital Library
Author	Evans, D.L. Farr, T.G. Ford, J.P. Thompson, T.W. Werner, C.L.
Copyright Year	1980
Abstract	The NASA/JPL airborne synthetic aperture radar system produces radar image data simultaneously in four linear polarizations (HH, VV, VH, HV) at 24.6-cm wavelength (L-band), with 10-m resolution, across a swath width of approximately 10 km. The signal data are recorded optically and digitally and annotated in each of the channels to facilitate a completely automated digital correlation. Both standard amplitude, and also phase difference images are produced in the correlation process. Individual polarization and range-dependent gain functions improve the effective dynamic range, but as yet do not permit absolute quantitative measurements of the scattering coefficients. However, comparison of the relative intensities of the different polarizations in individual black-and-white and color composite images provides discriminatory mapping information. In the Death Valley, California, area, rough surfaces of young alluvial deposits produce strong responses at all polarizations. Smoother surfaces of older alluvial deposits show significantly lower responses. Evaporite deposits of different types and moisture contents have distinct polarization signatures. In the Wind River Basin, Wyoming, sedimentary rock units show polarization responses that relate to differences in weathering. Local intensity variations in like-polarization images result from topographic effects; strong cross-polarization responses denote the effects of vegetation cover and, in some cases, possible scattering from the subsurface. In the Savannah River Plant, South Carolina, forest cover characteristics are discriminated by polarization responses that reflect the density and structure of the canopy, and the presence or absence of standing water beneath the canopy.
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	246
Ending Page	257
Page Count	12
File Size	9085329
File Format	PDF
ISSN	01962892
Volume Number	GE-24
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1986-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation mapping Radar imaging Geology Optical scattering Optical polarization Radar scattering Optical surface waves Rough surfaces Surface roughness Surface topography
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Degree of polarization of radar backscatters from a mixed target

Terrain discrimination by radar image polarization comparison

Multipolarization SAR Data for Surface Feature Delineation and Forest Vegetation Characterization

Scale-Dependent Surface Roughness Behavior and Its Impact on Empirical Models for Radar Backscatter

Radar polarimetry: analysis tools and applications

An empirical model for interpreting the relationship between backscattering and arid land surface roughness as seen with the SAR

A heuristic algorithm for the bistatic radar cross section for random rough surface scattering

The use of fractals for modeling EM waves scattering from rough sea surface

Quantitative roughness characterization of geological surfaces and implications for radar signature analysis

Multipolarization Radar Images for Geologic Mapping and Vegetation Discrimination

Similar Documents

Degree of polarization of radar backscatters from a mixed target

Terrain discrimination by radar image polarization comparison

Multipolarization SAR Data for Surface Feature Delineation and Forest Vegetation Characterization

Scale-Dependent Surface Roughness Behavior and Its Impact on Empirical Models for Radar Backscatter

Radar polarimetry: analysis tools and applications

An empirical model for interpreting the relationship between backscattering and arid land surface roughness as seen with the SAR

A heuristic algorithm for the bistatic radar cross section for random rough surface scattering

The use of fractals for modeling EM waves scattering from rough sea surface

Quantitative roughness characterization of geological surfaces and implications for radar signature analysis

Multipolarization Radar Images for Geologic Mapping and Vegetation Discrimination