Publications
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Planetary Aeolian landforms: An introduction to the Fifth Planetary Dunes Workshop Special Issue Planetary Aeolian landforms: An introduction to the Fifth Planetary Dunes Workshop Special Issue
Aeolian landforms are widespread in our solar system. Understanding the exact nature and processes of formation of these features are challenging tasks necessitating a strong collaboration between scientists with different skills and scientific backgrounds. This paper describes the special issue for the 5th International Planetary Dunes Workshop, which includes 15 research papers and...
Authors
Simone Silvestro, Timothy N. Titus
Ancient winds, waves, and atmosphere in Gale Crater, Mars, inferred from sedimentary structures and wave modeling Ancient winds, waves, and atmosphere in Gale Crater, Mars, inferred from sedimentary structures and wave modeling
Wave modeling and analysis of sedimentary structures were used to evaluate whether four examples of symmetrical, reversing, or straight-crested bedforms in Gale crater sandstones are preserved wave ripples; deposition by waves would demonstrate that the lake was not covered by ice at that time. Wave modeling indicates that regardless of atmospheric density, winds that exceeded the...
Authors
DM Rubin, Lapotre, Andrew W. Stevens, MP Lamb, CM Fedo, JP Grotzinger, S. Gupta, KM Stack, AR Vasavada, SG Banham, Bryk, G. Caravaca, JP Christian, Lauren A. Edgar, M. C. Malin
Using near–surface temperature data to vicariously calibrate high-resolution thermal infrared imagery and estimate physical surface properties Using near–surface temperature data to vicariously calibrate high-resolution thermal infrared imagery and estimate physical surface properties
Thermal response of the surface to solar insolation is a function of the topography and the thermal physical characteristics of the landscape, which include bulk density, heat capacity, thermal conductivity and surface albedo and emissivity. Thermal imaging is routinely used to constrain thermal physical properties by characterizing or modeling changes in the diurnal temperature profiles...
Authors
Timothy N. Titus, J. Judson Wynne, M.D. Jhabvala, N. A. Cabrol
In situ recording of Mars soundscape In situ recording of Mars soundscape
Prior to the Perseverance rover landing, the acoustic environment of Mars was unknown. Models predicted that: (i) atmospheric turbulence changes at centimeter scales or smaller at the point where molecular viscosity converts kinetic energy into heat1, (ii) the speed of sound varies at the surface with frequency2,3, and (iii) high frequency waves are strongly attenuated with distance in...
Authors
Sylvestre Maurice, Baptiste Chide, Naomi Murdoch, Ralph D. Lorenz, David Mimoun, Roger C. Wiens, Alexander E. Stott, X. Jacob, T. Bertrand, F. Montmessin, Nina L. Lanza, C. Alvarez-Llamas, S. M. Angel, M. Aung, J. Balaram, O. Beyssac, A. Cousin, G. Delory, O. Forni, T. Fouchet, Olivier Gasnault, H. Grip, M. Hecht, J. Hoffman, J. Laserna, J. Lasue, J. N. Maki, J. McClean, P. #NAME? Meslin, S. Le Mouélic, A. Munguira, C. E. Newman, J. A. Rodriguez Manfredi, J. Moros, A. Ollila, P. Pilleri, S.E. Schröder, M. de la Torre Juarez, T. Tzanetos, K. Stack, K. Farley, K. H. Williford, T. Acosta-Maeda, Ryan Anderson, D.M. Applin, G. Arana, M. Bassas-Portus, R. Beal, P.S.A. Beck, K. Benzerara, S. Bernard, P. Bernardi, T. Bosak, B. Bousquet, A.J. Brown, A. Cadu, P. Caïs, K. Castro, E. Clavé, S. M. Clegg, E. Cloutis, S. Connell, A. Debus, E. Dehouck, D. Delapp, C. Donny, A. Dorresoundiram, G. Dromart, B. Dubois, C. Fabre, A. Fau, W. F. Fischer, R. Francis, J. Frydenvang, Travis S.J. Gabriel, E. Gibbons, I. Gontijo, J. R. Johnson, H. Kalucha, E. Kelly, E. Knutsen, G. Lacombe, C. Legett, R. Leveille, E. Lewin, G. Lopez-Reyes, E. Lorigny, J. M. Madariaga, M. B. Madsen, S. Madsen, L. Mandon, N. Mangold, M. Mann, J.-A. Manrique, J. Martinez-Frias, L.E. Mayhew, F. Meunier, T. McConnochie, S. M. McLennan, G. Montagnac, V. Mousset, T. Aliste Nelson, R. T. Newell, Y. Parot, C. Pilorget, P. Pinet, G. Pont, C. Quantin-Nataf, B. Quertier, W. Rapin, A. Reyes-Newell, S. Robinson, L. Rochas, C. Royer, F. Rull, V. Sautter, S. Sharma, V. Shridar, A. Sournac, M. Toplis, I. Torre-Fdez, N. Turenne, A. Udry, M. Veneranda, D. Venhaus, D. Vogt, P. Willis
Introduction to the Python Hyperspectral Analysis Tool (PyHAT) Introduction to the Python Hyperspectral Analysis Tool (PyHAT)
Spectroscopic data are rich in information and are commonly used in planetary research. Many mission teams, research labs, and individual research scientists derive thematic products from multi- and hyperspectral data sets and apply spectroscopic analysis techniques to derive new understanding. The PyHAT is a powerful and versatile, free, and open-source Python library designed to...
Authors
Jason Laura, Lisa R. Gaddis, Ryan B. Anderson, Itiya P. Aneece
Mass balance of two perennial snowfields: Niwot Ridge, Colorado and the Ulaan Taiga, Mongolia. Mass balance of two perennial snowfields: Niwot Ridge, Colorado and the Ulaan Taiga, Mongolia.
Perennial snowfields are generally receding worldwide, though the precise mechanisms causing recessions are not always well understood. Here we apply a numerical snowpack model to identify the leading factors controlling the mass balance of two perennial snowfields that have significant human interest: Arapaho glacier, located at Niwot Ridge in the Colorado Rocky Mountains (United States...
Authors
Kaj E. Williams, Christopher P. McKay, Owen B. Toon, Keith S. Jennings
Bedrock geochemistry and alteration history of the clay-bearing Glen Torridon region of Gale crater, Mars Bedrock geochemistry and alteration history of the clay-bearing Glen Torridon region of Gale crater, Mars
Glen Torridon is a topographic trough located on the slope of Aeolis Mons, Gale crater, Mars. It corresponds to what was previously referred to as the “clay-bearing unit”, due to the relatively strong spectral signatures of clay minerals (mainly ferric smectites) detected from orbit. Starting in January 2019, the Curiosity rover explored Glen Torridon for more than 700 sols (Martian days...
Authors
Erwin Dehouck, Agnes Cousin, Nicolas Mangold, Jens Frydenvang, Olivier Gasnault, Olivier Forni, William Rapin, Patrick J. Gasda, Gwenael Caravaca, Gael David, Candice C. Bedford, Jeremie Lasue, Pierre-Yves Meslin, Kristin Rammelkamp, Marine Desjardins, Stephane Le Mouelic, Michael T. Thorpe, Valerie K. Fox, Kristen A. Bennett, Alexander Bryk, Nina L. Lanza, Sylvestre Maurice, Roger C. Wiens
The Lunar Geophysical Network landing site science rationale The Lunar Geophysical Network landing site science rationale
The Lunar Geophysical Network (LGN) mission is proposed to land on the Moon in 2030 and deploy packages at four locations to enable geophysical measurements for 6–10 yr. Returning to the lunar surface with a long-lived geophysical network is a key next step to advance lunar and planetary science. LGN will greatly expand our primarily Apollo-based knowledge of the deep lunar interior by...
Authors
Heidi Haviland, Renee C. Weber, Clive Neal, Philippe Lognonne, Raphael Garcia, Nicholas Schmerr, Seiichi Nagihara, Robert Grimm, Douglas Currie, Simone Dell’Agnello, Thomas R. Watters, Mark Panning, Catherine L. Johnson, Ryuhei Yamada, Martin Knapmeyer, Lillian R. Ostrach, Taichi Kawamura, Noah Petro, Paul Bremner
Silicate volcanism on Europa’s seafloor and implications for habitability Silicate volcanism on Europa’s seafloor and implications for habitability
Habitable ocean environments on Europa require an influx of reactants to maintain chemical disequilibrium. One possible source of reactants is seafloor volcanism. Modeling has shown that dissipation of tidal energy in Europa's asthenosphere can generate melt, but melt formation cannot be equated with volcanism. Melt must also be transported through Europa's cold lithosphere to erupt at...
Authors
Michael T. Bland, Catherine Elder
Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy
The SuperCam instrument on the Perseverance Mars 2020 rover uses a pulsed 1064 nm laser to ablate targets at a distance and conduct laser induced breakdown spectroscopy (LIBS) by analyzing the light from the resulting plasma. SuperCam LIBS spectra are preprocessed to remove ambient light, noise, and the continuum signal present in LIBS observations. Prior to quantification, spectra are...
Authors
Ryan B. Anderson, Olivier Forni, Agnes Cousin, Roger C. Wiens, Samuel M. Clegg, Jens Frydenvang, Travis S.J. Gabriel, Ann M. Ollila, Susanne Schröder, Olivier Beyssac, Erin Gibbons, David Vogt, Elise Clave, Jose-Antonio Manrique, Carey Legett, Paolo Pilleri, Raymond Newell, Joseph Sarrao, Sylvestre Maurice, Gorka Arana, Karim Benzerara, Pernelle Bernardi, Sylvain Bernard, Bruno Bousquet, Adrian J. Brown, Cesar Alvarez-Llamas, Baptiste Chide, Edward A. Cloutis, Jade Comellas, Stephanie Connell, Erwin Dehouck, Dorothea Delapp, Ari Essunfeld, Cecile Fabre, Thierry Fouchet, Cristina Garcia, Laura Garcia-Gomez, Patrick J. Gasda, Olivier Gasnault, Elisabeth Hausrath, Nina L. Lanza, Javier Laserna, Jeremie Lasue, Guillermo Lopez, Juan Manuel Madariaga, Lucia Mandon, Nicolas Mangold, Pierre-Yves Meslin, Marion Nachon, Anthony Nelson, Horton E. Newsom, Adriana Reyes-Newell, Scott Robinson, Fernando Rull, Shiv Sharma, Justin I Simon, Pablo Sobron, Imanol Torre Fernandez, Arya Udry, Dawn Venhaus, Scott McLennan, Richard V. Morris, Bethany L. Ehlmann
hical—The HiRISE radiometric calibration software developed within the ISIS3 planetary image processing suite hical—The HiRISE radiometric calibration software developed within the ISIS3 planetary image processing suite
Introduction This report summarizes the software and algorithms that are used to calibrate images returned by the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter (MRO) spacecraft. The instrument design and data processing methods are summarized below, followed by a description of relevant calibration data and details of the calibration...
Authors
Kris J. Becker, Moses P. Milazzo, W. Alan Delamere, Kenneth E. Herkenhoff, Eric M. Eliason, Patrick S. Russell, Laszlo P. Keszthelyi, Alfred S. McEwen
Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images
Images from the Mars Science Laboratory (MSL) mission of lacustrine sedimentary rocks of Vera Rubin ridge on “Mt. Sharp” in Gale crater, Mars, have shown stark color variations from red to purple to gray. These color differences crosscut stratigraphy and are likely due to diagenetic alteration of the sediments after deposition. However, the chemistry and timing of these fluid...
Authors
Briony H. N. Horgan, Jeffrey R. Johnson, Abigail A. Fraeman, Melissa Rice, Christina Seeger, James F. Bell, Kristen A. Bennett, Edward A. Cloutis, Lauren A. Edgar, Jens Frydenvang, John P. Grotzinger, Jonas L’Haridon, Samantha Jacob, Nicolas Mangold, Elizabeth B. Rampe, Frances Rivera-Hernandez, Vivian Z. Sun, Lucy Thompson, Danika F. Wellington