NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Monsoon 1990: Preliminary SAR resultsMultifrequency polarimetric synthetic aperture radar (SAR) images of the Walnut Gulch watershed near Tombstone, Arizona were acquired on 28 Mar. 1990 and on 1 Aug. 1990. Trihedral corner reflectors were deployed prior to both overflights to allow calibration of the two SAR data sets. During both overflights, gravimetric soil moisture and dielectric constant measurements were made. Detailed vegetation height, density, and water content measurements were made as part of the Monsoon 1990 Experiment. Preliminary results based on analysis of the multitemporal polarimetric SAR data are presented. Only the C-band data (5.7-cm wavelength) radar images show significant difference between Mar. and Aug., with the strongest difference observed in the HV images. Based on the radar data analysis and the in situ measurements, we conclude that these differences are mainly due to changes in the vegetation and not due to the soil moisture changes.
Document ID
19920018779
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vanzyl, Jakob J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Dubois, Pascale
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Guerra, Abel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 6, 2013
Publication Date
August 1, 1991
Publication Information
Publication: Proceedings of the Third Airborne Synthetic Aperture Radar (AIRSAR) Workshop
Subject Category
Earth Resources And Remote Sensing
Accession Number
92N28022
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available