Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains
International audience Radar detection of subsurface ice on Mars has been widely debated in part because the dielectric signature of ice, as deduced from the dielectric constant, can be confused with dry-silicate-rich materials. To identify the ice dielectric signature, it is crucial to estimate the...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2011
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Online Access: | https://insu.hal.science/insu-02564101 https://insu.hal.science/insu-02564101v1/document https://insu.hal.science/insu-02564101v1/file/2010JE003768.pdf https://doi.org/10.1029/2010JE003768 |
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HAL Sorbonne Université |
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English |
topic |
GROUND-PENETRATING RADAR MEDUSAE FOSSAE FORMATION LOBATE DEBRIS APRONS DIELECTRIC MEASUREMENTS UTOPIA PLANITIA CLIMATE-CHANGE SHALLOW RADAR MARS SUBSURFACE WATER [SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] |
spellingShingle |
GROUND-PENETRATING RADAR MEDUSAE FOSSAE FORMATION LOBATE DEBRIS APRONS DIELECTRIC MEASUREMENTS UTOPIA PLANITIA CLIMATE-CHANGE SHALLOW RADAR MARS SUBSURFACE WATER [SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] Boisson, Joséphine Heggy, Essam Clifford, Stephen Yoshikawa, Kenji Anglade, André Lognonné, Philippe Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
topic_facet |
GROUND-PENETRATING RADAR MEDUSAE FOSSAE FORMATION LOBATE DEBRIS APRONS DIELECTRIC MEASUREMENTS UTOPIA PLANITIA CLIMATE-CHANGE SHALLOW RADAR MARS SUBSURFACE WATER [SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] |
description |
International audience Radar detection of subsurface ice on Mars has been widely debated in part because the dielectric signature of ice, as deduced from the dielectric constant, can be confused with dry-silicate-rich materials. To identify the ice dielectric signature, it is crucial to estimate the imaginary part of the dielectric permittivity inferred from the dielectric attenuation after removing the scattering loss. Unfortunately, the latter remains poorly quantified at both Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) and shallow subsurface radar SHARAD frequencies. To address this ambiguity, we conducted multiple-frequency ground-penetrating radar and resistivity investigations in well-characterized temperate permafrost in Fairbanks, Alaska. The area shows several geomorphologic similarities to midlatitude and high-latitude terrains on Mars. This approach allowed us to quantify the dielectric and scattering losses in temperate permafrost over the 10 to 1000 MHz frequency band. At 20 MHz, our results suggest an average dielectric loss rate of 0.25 +/- 0.03 dB/m, whereas the corresponding average scattering loss rate is 0.94 +/- 0.37 dB/m. The scattering loss was found to represent similar to 69% of the total signal attenuation. Considering this result and the study by Heggy et al. (2006a) in volcanic environments, we revised the interpretation of the attenuation coefficient calculated from SHARAD data over the Deuteronilus Mensae region and Amazonis Planitia; we then used the reevaluated dielectric loss to estimate the imaginary part of the dielectric permittivity. Our results suggest that even if Deuteronilus Mensae deposits and the Vastitas Borealis Formation may have similar dielectric constants, their imaginary parts are different. This implies that the two regions have different bulk compositions, with the former being ice-rich sediments and the latter being nonconsolidated volcanic deposits |
author2 |
Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) NASA, Jet Prop Lab, CALTECH, 4800 Oak Grove Dr, Pasadena, CA 91109 USA Lunar and Planetary Institute Houston (LPI) Water and Environmental Research Center Fairbanks (WERC) University of Alaska Fairbanks (UAF) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) National Aeronautics & Space Administration (NASA)NNG05GL39GPGG04-000-0059Centre National D'etudes Spatiales French Ministry of Research and Technology |
format |
Article in Journal/Newspaper |
author |
Boisson, Joséphine Heggy, Essam Clifford, Stephen Yoshikawa, Kenji Anglade, André Lognonné, Philippe |
author_facet |
Boisson, Joséphine Heggy, Essam Clifford, Stephen Yoshikawa, Kenji Anglade, André Lognonné, Philippe |
author_sort |
Boisson, Joséphine |
title |
Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
title_short |
Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
title_full |
Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
title_fullStr |
Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
title_full_unstemmed |
Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains |
title_sort |
radar sounding of temperate permafrost in alaska: analogy to the martian midlatitude to high-latitude ice-rich terrains |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://insu.hal.science/insu-02564101 https://insu.hal.science/insu-02564101v1/document https://insu.hal.science/insu-02564101v1/file/2010JE003768.pdf https://doi.org/10.1029/2010JE003768 |
geographic |
Fairbanks |
geographic_facet |
Fairbanks |
genre |
Ice permafrost Alaska |
genre_facet |
Ice permafrost Alaska |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://insu.hal.science/insu-02564101 Journal of Geophysical Research, 2011, 116 (E11), ⟨10.1029/2010JE003768⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JE003768 doi:10.1029/2010JE003768 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010JE003768 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
E11 |
_version_ |
1812814547851935744 |
spelling |
ftsorbonneuniv:oai:HAL:insu-02564101v1 2024-10-13T14:07:58+00:00 Radar sounding of temperate permafrost in Alaska: Analogy to the Martian midlatitude to high-latitude ice-rich terrains Boisson, Joséphine Heggy, Essam Clifford, Stephen Yoshikawa, Kenji Anglade, André Lognonné, Philippe Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) NASA, Jet Prop Lab, CALTECH, 4800 Oak Grove Dr, Pasadena, CA 91109 USA Lunar and Planetary Institute Houston (LPI) Water and Environmental Research Center Fairbanks (WERC) University of Alaska Fairbanks (UAF) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) National Aeronautics & Space Administration (NASA)NNG05GL39GPGG04-000-0059Centre National D'etudes Spatiales French Ministry of Research and Technology 2011-11-16 https://insu.hal.science/insu-02564101 https://insu.hal.science/insu-02564101v1/document https://insu.hal.science/insu-02564101v1/file/2010JE003768.pdf https://doi.org/10.1029/2010JE003768 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JE003768 doi:10.1029/2010JE003768 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://insu.hal.science/insu-02564101 Journal of Geophysical Research, 2011, 116 (E11), ⟨10.1029/2010JE003768⟩ GROUND-PENETRATING RADAR MEDUSAE FOSSAE FORMATION LOBATE DEBRIS APRONS DIELECTRIC MEASUREMENTS UTOPIA PLANITIA CLIMATE-CHANGE SHALLOW RADAR MARS SUBSURFACE WATER [SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] info:eu-repo/semantics/article Journal articles 2011 ftsorbonneuniv https://doi.org/10.1029/2010JE003768 2024-09-29T23:54:56Z International audience Radar detection of subsurface ice on Mars has been widely debated in part because the dielectric signature of ice, as deduced from the dielectric constant, can be confused with dry-silicate-rich materials. To identify the ice dielectric signature, it is crucial to estimate the imaginary part of the dielectric permittivity inferred from the dielectric attenuation after removing the scattering loss. Unfortunately, the latter remains poorly quantified at both Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) and shallow subsurface radar SHARAD frequencies. To address this ambiguity, we conducted multiple-frequency ground-penetrating radar and resistivity investigations in well-characterized temperate permafrost in Fairbanks, Alaska. The area shows several geomorphologic similarities to midlatitude and high-latitude terrains on Mars. This approach allowed us to quantify the dielectric and scattering losses in temperate permafrost over the 10 to 1000 MHz frequency band. At 20 MHz, our results suggest an average dielectric loss rate of 0.25 +/- 0.03 dB/m, whereas the corresponding average scattering loss rate is 0.94 +/- 0.37 dB/m. The scattering loss was found to represent similar to 69% of the total signal attenuation. Considering this result and the study by Heggy et al. (2006a) in volcanic environments, we revised the interpretation of the attenuation coefficient calculated from SHARAD data over the Deuteronilus Mensae region and Amazonis Planitia; we then used the reevaluated dielectric loss to estimate the imaginary part of the dielectric permittivity. Our results suggest that even if Deuteronilus Mensae deposits and the Vastitas Borealis Formation may have similar dielectric constants, their imaginary parts are different. This implies that the two regions have different bulk compositions, with the former being ice-rich sediments and the latter being nonconsolidated volcanic deposits Article in Journal/Newspaper Ice permafrost Alaska HAL Sorbonne Université Fairbanks Journal of Geophysical Research 116 E11 |