Performance and surface scattering models for the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS)

Picardi, G.; Biccari, D.; Seu, R.; Marinangeli, L.; Johnson, Wesley L.; Jordan, R.; Plaut, J. J.; Safaenili, A.; Gurnett, D. A.; Ori, G. G.; Orosei, R.; Calabrese, D.; Zampolini, E.

doi:10.1016/j.pss.2003.08.020

Cited by 135 publications

(112 citation statements)

References 17 publications

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“…The method is based on the observation that power reflected by a natural surface depends both on its composition and on its geometry (see Picardi et al, 2004a, for a discussion). If the effect of geometry can be correctly accounted for, through simulations using accurate knowledge of the Martian topography provided by the MOLA altimeter (Smith et al, 2001), then the ratio between measured echo power and the fictitious reflected power estimated through simulations is a function of the unknown gain of the MARSIS antenna and of the Fresnel reflection coefficient of the surface.…”

Section: Vastitas Borealismentioning

confidence: 99%

Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) after nine years of operation: A summary

Orosei

Jordan

Morgan

et al. 2015

Planetary and Space Science

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Section: Vastitas Borealismentioning

confidence: 99%

Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) after nine years of operation: A summary

Orosei

Jordan

Morgan

et al. 2015

Planetary and Space Science

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“…Most backscattering models separate the effect of the dielectric constant (material ACCEPTED MANUSCRIPT chemistry) from those of topography (roughness, slopes) (Ulaby et al 1986;Picardi et al 2004). The reflectivity of the surface r 0,1 (equation 2) can be expressed by the equation:…”

Section: Surface Echo Powermentioning

confidence: 99%

The 3–5MHz global reflectivity map of Mars by MARSIS/Mars Express: Implications for the current inventory of subsurface H2O

Mouginot

Pommerol

Kofman

et al. 2010

Icarus

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ACCEPTED MANUSCRIPT

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“…of Mars, such as satellitebased GPR (i.e. the MARSIS and SHARAD projects, Picardi et al, 2004;Seu et al, 2007), in cryospheric applications (e.g. Eisen et al, 2003Eisen et al, , 2006 and in studies of permafrost soils (e.g.…”

Section: Introductionmentioning

confidence: 99%

Supercooled interfacial water in fine-grained soils probed by dielectric spectroscopy

Lorek

Wagner

2013

The Cryosphere

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Abstract.Water substantially affects nearly all physical, chemical and biological processes on the Earth. Recent Mars observations as well as laboratory investigations suggest that water is a key factor of current physical and chemical processes on the Martian surface, e.g. rheological phenomena. Therefore it is of particular interest to get information about the liquid-like state of water on Martian analogue soils for temperatures below 0 • C. To this end, a parallel plate capacitor has been developed to obtain isothermal dielectric spectra of fine-grained soils in the frequency range from 10 Hz to 1.1 MHz at Martian-like temperatures down to −70 • C. Two Martian analogue soils have been investigated: a Ca-bentonite (specific surface of 237 m 2 g −1 , up to 9.4 % w/w gravimetric water content) and JSC Mars 1, a volcanic ash (specific surface of 146 m 2 g −1 , up to 7.4 % w/w). Three soil-specific relaxation processes are observed in the investigated frequency-temperature range: two weak highfrequency processes (bound or hydrated water as well as ice) and a strong low-frequency process due to counter-ion relaxation and the Maxwell-Wagner effect. To characterize the dielectric relaxation behaviour, a generalized fractional dielectric relaxation model was applied assuming three active relaxation processes with relaxation time of the ith process modelled with an Eyring equation. The real part of effective complex soil permittivity at 350 kHz was used to determine ice and liquid-like water content by means of the Birchak or CRIM equation. There are evidence that bentonite down to −70 • C has a liquid-like water content of 1.17 monolayers and JSC Mars 1 a liquid-like water content of 1.96 monolayers.

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Performance and surface scattering models for the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS)

Cited by 135 publications

References 17 publications

Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) after nine years of operation: A summary

Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) after nine years of operation: A summary

The 3–5MHz global reflectivity map of Mars by MARSIS/Mars Express: Implications for the current inventory of subsurface H2O

Supercooled interfacial water in fine-grained soils probed by dielectric spectroscopy

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