Exploring the Martian subsurface of Athabasca using MARSIS radar data

Testing the volcanic and fluvial hypotheses for the origin of the morphology

Josephine Boisson, Essam Heggy, Alessandro Frigeri, William M. Farrell, Giovanni Picardi, Stephen M. Clifford, Jeffrey J. Plaut, Nathaniel Putzig, Roberto Orosei, Donald A. Gurnett

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work aims to test the formation hypotheses of the rafted-plate morphology observed in the Martian area of Athabasca Valles (5°N, 150°E,) using the subsurface radar echo from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) 5 MHz-band data over this area. The backscattered signal losses are compared to those arising from two geoelectrical subsurface models (differing in their assumed ice content) generated by finite-difference time-domain (FDTD) simulations. Within this region, the MARSIS signal experience average losses of 0.09dB/m in the first 160 m beneath the surface. FDTD simulations suggests that, if the near-surface environment is ice-rich (80% by volume), it will result in average losses of 0.048dB/m, whereas the losses associated with an ice-poor model (20% of ice by volume) increase to 0.10dB/m. Comparing the observed MARSIS losses with the simulated ones suggests that the propagation characteristics of Athabasca's subsurface are more consistent with a volcanic rather than a fluvial origin for the rafted-plate terrain.

Original languageEnglish
Title of host publication2009 IEEE Radar Conference, RADAR 2009
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE Radar Conference, RADAR 2009 - Pasadena, CA, United States
Duration: 4 May 20098 May 2009

Other

Other2009 IEEE Radar Conference, RADAR 2009
CountryUnited States
CityPasadena, CA
Period4/5/098/5/09

Fingerprint

Ionosphere
Radar
Ice
Testing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Boisson, J., Heggy, E., Frigeri, A., Farrell, W. M., Picardi, G., Clifford, S. M., ... Gurnett, D. A. (2009). Exploring the Martian subsurface of Athabasca using MARSIS radar data: Testing the volcanic and fluvial hypotheses for the origin of the morphology. In 2009 IEEE Radar Conference, RADAR 2009 [4976987] https://doi.org/10.1109/RADAR.2009.4976987

Exploring the Martian subsurface of Athabasca using MARSIS radar data : Testing the volcanic and fluvial hypotheses for the origin of the morphology. / Boisson, Josephine; Heggy, Essam; Frigeri, Alessandro; Farrell, William M.; Picardi, Giovanni; Clifford, Stephen M.; Plaut, Jeffrey J.; Putzig, Nathaniel; Orosei, Roberto; Gurnett, Donald A.

2009 IEEE Radar Conference, RADAR 2009. 2009. 4976987.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Boisson, J, Heggy, E, Frigeri, A, Farrell, WM, Picardi, G, Clifford, SM, Plaut, JJ, Putzig, N, Orosei, R & Gurnett, DA 2009, Exploring the Martian subsurface of Athabasca using MARSIS radar data: Testing the volcanic and fluvial hypotheses for the origin of the morphology. in 2009 IEEE Radar Conference, RADAR 2009., 4976987, 2009 IEEE Radar Conference, RADAR 2009, Pasadena, CA, United States, 4/5/09. https://doi.org/10.1109/RADAR.2009.4976987
Boisson, Josephine ; Heggy, Essam ; Frigeri, Alessandro ; Farrell, William M. ; Picardi, Giovanni ; Clifford, Stephen M. ; Plaut, Jeffrey J. ; Putzig, Nathaniel ; Orosei, Roberto ; Gurnett, Donald A. / Exploring the Martian subsurface of Athabasca using MARSIS radar data : Testing the volcanic and fluvial hypotheses for the origin of the morphology. 2009 IEEE Radar Conference, RADAR 2009. 2009.
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