Sigurd Eide

Correction to: Photogeologic Map of the Perseverance Rover Field Site in Jezero Crater Constructed by the Mars 2020 Science Team

Kathryn M. Stack, Nathan Robert Williams, Fred John Calef, Vivian Zheng Sun et autres

International audience

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Observations of Igneous Subsurface Stratigraphy during the Jezero Crater Floor Rapid Traverse from the RIMFAX Ground-penetrating Radar

E. S. Shoemaker, Titus M. Casademont, Lynn M. Carter, Patrick Russell et autres

Abstract Perseverance traversed the eastern, northern, and western margins of the Séítah formation inlier on the rover’s western fan front approach. Mapping the stratigraphy and extent of the Máaz and Séítah formations is key to understanding the depositional history and timing of …

Assessing Radar Attenuation in RIMFAX Soundings at the Jezero Western Fan Front, Mars

Sigurd Eide, Titus M. Casademont, E. S. Shoemaker, Sverre Brovoll et autres

Abstract Estimates of radar attenuation in the shallow Martian subsurface are retrieved from RIMFAX soundings along the Perseverance rover traverse. Specifically, analyzed data is from the Hawksbill Gap area during the rover's first drives onto the Jezero Western Fan Front. The centroid …

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Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars

David A. Paige, Svein‐Erik Hamran, Hans E. F. Amundsen, Tor Berger et autres

The delta deposits in Jezero crater contain sedimentary records of potentially habitable conditions on Mars. NASA's Perseverance rover is exploring the Jezero western delta with a suite of instruments that include the RIMFAX ground penetrating radar, which provides continuous subsurface images that …

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Martian Ground Penetrating Radar: Toward Automated Diffraction Detection for Dielectric Permittivity

Titus M. Casademont, Henning Dypvik, Sigurd Eide, Tor Berger et autres

The dielectric permittivity is a crucial parameter in planetary Ground Penetrating Radar (GPR) missions such as the RIMFAX radar on the Mars 2020 Perseverance Rover. It describes the subsurface material and allows for radargram depth-interpretation. Hyperbolic pattern matching is the primary method …

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RIMFAX Ground Penetrating Radar Reveals Dielectric Permittivity and Rock Density of Shallow Martian Subsurface

Titus M. Casademont, Sigurd Eide, E. S. Shoemaker, Yang Liu et autres

Abstract The Mars 2020 Perseverance Rover is equipped with the RIMFAX ground penetrating radar instrument which has been continuously surveying the shallow subsurface during the rover's journey. Within the first 379 mission days, we identify hyperbolic patterns in the data, which are …

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Rock Properties of Shallow Martian Subsurface with the RIMFAX Ground Penetrating Radar

Titus M. Casademont, Sigurd Eide, Emileigh Shoemaker, Tor Berger et autres

The RIMFAX ground penetrating radar instrument on board the Mars 2020 Perseverance Rover has been continuously sounding the subsurface alongthe Rover traverse. In the data of the first 379 mission days on the Jezero Crater Floor we are able to identify hyperbolic …

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Exploring the Martian Subsurface with the RIMFAX Ground Penetrating Radar on the Mars 2020 Perseverance Rover.

Svein‐Erik Hamran, D. Paiges, Hans E. F. Amundsen, Tor Berger et autres

Summary The Ground Penetrating Radar (GPR) RIMFAX on the NASA Mars 2020 rover Perseverance is the first time a NASA Mars rover has a GPR. The GPR makes it possible to collect information on subsurface structure, physical properties, and composition. RIMFAX has …

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Radar Attenuation in the Shallow Martian Subsurface: RIMFAX Time‐Frequency Analysis and Constant‐Q Characterization Over Jezero Crater Floor

Sigurd Eide, Titus M. Casademont, Tor Berger, Henning Dypvik et autres

Abstract Attenuation of radar waves in the subsurface can be quantified with a constant‐Q approximation through time‐frequency analysis. We implement the centroid frequency‐shift method and study Radar Imager for Mars' Subsurface Exploration (RIMFAX) data acquired along the Mars 2020 Perseverance rover traverse. …

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RIMFAX dip attribute analysis: Unconformity detection and true dip in the Martian subsurface

Sigurd Eide, Henning Dypvik, Hans E. F. Amundsen, David I. Page et autres

By conducting a dip attribute analysis, the inclination of a set of reflections in a radargram can be quantified. The results are highly sensitive to the implementation, however, as many parameters need to be configured according to the dataset and aim of …

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Ground penetrating radar observations of subsurface structures in the floor of Jezero crater, Mars

Svein‐Erik Hamran, David A. Paige, Abigail C. Allwood, Hans E. F. Amundsen et autres

The Radar Imager for Mars Subsurface Experiment instrument has conducted the first rover-mounted ground-penetrating radar survey of the Martian subsurface. A continuous radar image acquired over the Perseverance rover's initial ~3-kilometer traverse reveals electromagnetic properties and bedrock stratigraphy of the Jezero crater …

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Modeling FMCW Radar for Subsurface Analysis

Sigurd Eide, Titus M. Casademont, Øyvind Aardal, Svein‐Erik Hamran

Determining subsurface properties through ground penetrating radar sounding can be challenging, especially in planetary exploration, where little is known about the terrain and additional observations are limited. Analysis and interpretation of data acquired with the Radar Imager for Mars’ Subsurface Experiment (RIMFAX) …

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