NDLI: Application of m- <inline-formula> <tex-math notation=TeX>$chi$</tex-math></inline-formula> Decomposition Technique on Mini-SAR Data to Understand Crater and Ejecta Morphology

Content Provider	IEEE Xplore Digital Library
Author	Mukherjee, S. Singh, P.
Copyright Year	2004
Abstract	Miniature Synthetic Aperture Radar (Mini-SAR) data conveniently reveals the unique morphological characteristics associated with crater ejecta blankets. Various surface and subsurface features in and around shadowed polar regions can be inferred using this data to explain the newly formed topography after impact events. A group of three craters lying north of Cabeus. A crater have unique ejecta morphology when m-χ decomposition technique is applied on mini-SAR data. The volume scattering observed for the region describes the relative slope of the terrain around and within crater walls. Alternately, Wapowski crater, which lies at the southern rim of Scott crater, has a different ejecta morphology indicative of it being relatively young. The high circular polarization ratio (CPR) calculated inside and outside Wapowski crater rim suggests that the presence of water ice within the shadowed portion of the crater is highly unlikely. The high CPR therefore is obtained due to the fresh blocky proximal ejecta blanket formed post impact. Volume scattering in m-χ decomposition image also corresponds to the region having high CPR. m-χ decomposition technique also shows that the proximal ejecta blanket is asymmetrically distributed around the crater rim. This technique therefore helps to study the process of impact cratering and the features generated thereafter.
Sponsorship	IEEE Geoscience and Remote Sensing Society
Starting Page	73
Ending Page	76
Page Count	4
File Size	1125278
File Format	PDF
ISSN	1545598X
Volume Number	12
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Moon Scattering Rough surfaces Surface roughness Ice Surface morphology Optical imaging Wapowski crater Circular polarization ratio (CPR) ejecta m-$\chi$ decomposition Miniature Synthetic Aperture Radar (Mini-SAR) m- $\chi$ decomposition
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Geotechnical Engineering and Engineering Geology

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