Doppler-based discrimination of radar sounder target scattering properties: A case study of subsurface water geometry in Europa's ice shell

Roger J. Michaelides; Dustin Schroeder

doi:10.1016/j.icarus.2019.02.037

Doppler-based discrimination of radar sounder target scattering properties: A case study of subsurface water geometry in Europa's ice shell

Roger J. Michaelides
, Dustin Schroeder

Department of Earth & Planetary Sciences

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Radar sounding reflectometry is a powerful method of inferring subsurface geophysical properties of planetary bodies. The upcoming Europa Clipper Mission will employ a dual frequency radar sounder to image and characterize Europa's subglacial environment. In terrestrial subglacial radar sounding, characteristic Doppler signatures of radar returns have been used to discriminate between different subglacial features (Peters et al., 2007). We propose that analogous techniques can be used in conjunction with traditional reflectometry methods to discriminate between different proposed models of subglacial and englacial water distribution within Europa's ice shell. We introduce the synthetic aperture radar (SAR) processing considerations that are relevant for such a technique, propose a simple hypothesis test for Doppler-based subglacial target discrimination, and briefly discuss the implications and applicability of such a technique for planetary radar sounding.

Original language	English
Pages (from-to)	29-36
Number of pages	8
Journal	Icarus
Volume	326
DOIs	https://doi.org/10.1016/j.icarus.2019.02.037
State	Published - Jul 1 2019

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10.1016/j.icarus.2019.02.037

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title = "Doppler-based discrimination of radar sounder target scattering properties: A case study of subsurface water geometry in Europa's ice shell",

abstract = "Radar sounding reflectometry is a powerful method of inferring subsurface geophysical properties of planetary bodies. The upcoming Europa Clipper Mission will employ a dual frequency radar sounder to image and characterize Europa's subglacial environment. In terrestrial subglacial radar sounding, characteristic Doppler signatures of radar returns have been used to discriminate between different subglacial features (Peters et al., 2007). We propose that analogous techniques can be used in conjunction with traditional reflectometry methods to discriminate between different proposed models of subglacial and englacial water distribution within Europa's ice shell. We introduce the synthetic aperture radar (SAR) processing considerations that are relevant for such a technique, propose a simple hypothesis test for Doppler-based subglacial target discrimination, and briefly discuss the implications and applicability of such a technique for planetary radar sounding.",

author = "Michaelides, \{Roger J.\} and Dustin Schroeder",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Inc.",

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AU - Schroeder, Dustin

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Y1 - 2019/7/1

N2 - Radar sounding reflectometry is a powerful method of inferring subsurface geophysical properties of planetary bodies. The upcoming Europa Clipper Mission will employ a dual frequency radar sounder to image and characterize Europa's subglacial environment. In terrestrial subglacial radar sounding, characteristic Doppler signatures of radar returns have been used to discriminate between different subglacial features (Peters et al., 2007). We propose that analogous techniques can be used in conjunction with traditional reflectometry methods to discriminate between different proposed models of subglacial and englacial water distribution within Europa's ice shell. We introduce the synthetic aperture radar (SAR) processing considerations that are relevant for such a technique, propose a simple hypothesis test for Doppler-based subglacial target discrimination, and briefly discuss the implications and applicability of such a technique for planetary radar sounding.

AB - Radar sounding reflectometry is a powerful method of inferring subsurface geophysical properties of planetary bodies. The upcoming Europa Clipper Mission will employ a dual frequency radar sounder to image and characterize Europa's subglacial environment. In terrestrial subglacial radar sounding, characteristic Doppler signatures of radar returns have been used to discriminate between different subglacial features (Peters et al., 2007). We propose that analogous techniques can be used in conjunction with traditional reflectometry methods to discriminate between different proposed models of subglacial and englacial water distribution within Europa's ice shell. We introduce the synthetic aperture radar (SAR) processing considerations that are relevant for such a technique, propose a simple hypothesis test for Doppler-based subglacial target discrimination, and briefly discuss the implications and applicability of such a technique for planetary radar sounding.

UR - https://www.scopus.com/pages/publications/85062547506

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DO - 10.1016/j.icarus.2019.02.037

M3 - Article

AN - SCOPUS:85062547506

SN - 0019-1035

VL - 326

SP - 29

EP - 36

JO - Icarus

JF - Icarus

ER -

Doppler-based discrimination of radar sounder target scattering properties: A case study of subsurface water geometry in Europa's ice shell

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