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Synthetic aperture radar observations of the Greenland ice sheetResults of preliminary analyses of aircraft polarimetric SAR data acquired over the Greenland Ice Sheet are presented. Data were collected in August 1989 by the Jet Propulsion Laboratory (JPL) multifrequency, polarimetric SAR using the NASA DC-8 aircraft over southern Greenland. Data of this kind are the first to be acquired over an ice sheet. They are complementary to the limited coverage provided by the SEASAT satellite SAR in 1978, and more recent aircraft X-band SAR image coverage. Frequency and polarization dependencies observed in the P-, L-, and C-band image products are attributed to large-scale variations in the snow and ice surface characteristics. At this time of year, during the ablation season, ice topography exerts a strong influence upon drainage and other hydrological features on the ice sheet surface. Systematic trends in backscatter strength observed across regions of changing snow facies are suggestive of a capability to map areas of snow wetness. Trends observed at C-band indicate that algorithms could possibly be developed which have the ability to delineate areas of significant melt.
Document ID
19950002613
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jezek, K.
(Ohio State Univ. Columbus., United States)
Crawford, J. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bindschadler, R.
(NASA Goddard Space Flight Center Greenbelt, MD., United States)
Drinkwater, M. R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kwok, R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 17, 2013
Publication Date
November 15, 1990
Publication Information
Publication: Proceedings of the Second Airborne Synthetic Aperture Radar (AIRSAR) Workshop
Subject Category
Earth Resources And Remote Sensing
Accession Number
95N70733
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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