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Radar observations of basaltic lava flows, Craters of the Moon, IdahoRadar images of Craters of the Moon, Idaho were used to study the backscatter characteristics of basaltic lava flows of predominantly pahoehoe textures and to determine the ability to detct fissure vents. Four images were obtained: X-band HH, X-band HV, L-band HH, and L-band HV. Hummocky pahoehoe flows were found to have strong backscatter in all four of these images. Aa lava flows showed the greatest variation in backscatter intensities, due to an increase in multiple scattering at the L-band scale. Eruptive fissures are detectable in the radar images by virtue of associated parallel spatter ramparts which have diagnostic, strong backscatter in the X-band images that are in contrast to the weak backscatter of the surrounding shelly pahoehoe lava. The importance of look direction in the use of radar images to characterize terrains is emphasized.
Document ID
19880062136
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Greeley, Ronald
(Arizona State Univ. Tempe, AZ, United States)
Martel, Linda
(Arizona State University Tempe, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1988
Publication Information
Publication: International Journal of Remote Sensing
Volume: 9
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
88A49363
Funding Number(s)
CONTRACT_GRANT: NSG-7415
CONTRACT_GRANT: NCC2-346
Distribution Limits
Public
Copyright
Other

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