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Vortex-Dominated Aeolian Activity at InSight's Landing Site, Part 1: Multi-Instrument Observations, Analysis, and Implications

Charalambous, C. and McClean, J. and Baker, M. and Pike, T. and Golombek, M. and Lemmon, M.T. and Ansan, V. and Perrin, C. and Spiga, A. and Lorenz, R. D. and Banks, M. and Murdoch, N. and Rodriguez, S. and Weitz, C. and Grant, J.A. and Warner, N. and Garvin, J. and Daubar, I. and Hauber, Ernst and Stott, A. and Johnson, C. and Mittelholz, A. and Warren, T. and Navarro, S. and Sotomayor, L. M. and Maki, J. and Lucas, A. and Banfield, D. and Newman, C. and Viudez-Moreiras, D. and Pla-Garcia, J. and Lognonne, A.P. and Banerdt, B. (2021) Vortex-Dominated Aeolian Activity at InSight's Landing Site, Part 1: Multi-Instrument Observations, Analysis, and Implications. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 126 (6), e2020JE006757. Wiley. doi: 10.1029/2020JE006757. ISSN 2169-9097.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020JE006757


Aeolian activity, the movement of dust and sand by the wind, is common on Earth and has been observed on other planets, including Mars. A new Mars lander, InSight, has for the first time monitored aeolian changes by combining imaging with weather, seismic and magnetic field measurements. Sand grains are seen moving along the ground and dust is lifted from both artificial and natural surfaces. We found these changes were rare, but almost always happened in the early afternoon when tornado-like phenomena, called convective vortices, passed by the lander, sometimes leaving dark surface trails behind. The combination of the background wind speed and the rotational wind speed within a vortex was likely to be high enough to detach particles from the surface and set them into motion. When these vortices passed by the lander, the seismometer detected the ground tilting, and there was a pulse in the magnetic field, indicating charged particles were part of these dust-clearing events.

Item URL in elib:https://elib.dlr.de/142659/
Document Type:Article
Title:Vortex-Dominated Aeolian Activity at InSight's Landing Site, Part 1: Multi-Instrument Observations, Analysis, and Implications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Charalambous, C.Imperial College, London, United KingdomUNSPECIFIED
McClean, J.Imperial College, London, United KingdomUNSPECIFIED
Baker, M.The Johns Hopkins University, Baltimore, MDUNSPECIFIED
Pike, T.Imperial College of London, London, UKUNSPECIFIED
Golombek, M.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USAhttps://orcid.org/0000-0002-1928-2293
Lemmon, M.T.Space Science Institute Boulder, USAUNSPECIFIED
Ansan, V.Laboratoire Planétologie et Géodynamique de Nantes, LPGN/CNRS, Université NantesUNSPECIFIED
Perrin, C.Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Paris VII–Denis Diderot University, CNRS, Paris, FranceUNSPECIFIED
Spiga, A.Laboratoire de Météorologie Dynamique (LMD/IPSL), Sorbonne Université, Centre National de la Recherche Scientifique, École Polytechnique, École Normale Supérieure, Paris, France; Institut Universitaire de France, Paris, Francehttps://orcid.org/0000-0002-6776-6268
Lorenz, R. D.The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USAUNSPECIFIED
Banks, M.NASA Goddard Space Flight Center, Greenbelt, MDUNSPECIFIED
Murdoch, N.ISEA-SUPERO, Université de ToulouseUNSPECIFIED
Rodriguez, S.Laboratoire de Planétologie et Géodynamique, Université de Nantes, Nantes, FranceUNSPECIFIED
Weitz, C.Planetary Science InstituteUNSPECIFIED
Grant, J.A.Smithsonian Institute, Washington, USAUNSPECIFIED
Warner, N.SUNY at GeneseoUNSPECIFIED
Daubar, I.Brown University, Providence, RI, USAUNSPECIFIED
Hauber, ErnstErnst.Hauber (at) dlr.dehttps://orcid.org/0000-0002-1375-304X
Stott, A.Imperial College, London, United KingdomUNSPECIFIED
Johnson, C.Planetary Science Institute, Tucson, USAUNSPECIFIED
Mittelholz, A.Institute of Geophysics, ETH ZürichUNSPECIFIED
Warren, T.Oxford University, UKUNSPECIFIED
Navarro, S.Centro de Astrobiologia (CAB), Madrid, SpainUNSPECIFIED
Sotomayor, L. M.Cornell University, Ithaca, NY, USAUNSPECIFIED
Maki, J.Jet Propulsion Laboratory, Pasadena, CA, USAUNSPECIFIED
Lucas, A.IPGP Paris, FranceUNSPECIFIED
Banfield, D.Cornell University, Ithaca, NY, USAUNSPECIFIED
Newman, C.Aeolis Research, Pasadena, California, USAUNSPECIFIED
Viudez-Moreiras, D.Centro de Astrobiologia (CAB), Madrid, SpainUNSPECIFIED
Pla-Garcia, J.Centro de Astrobiologia (CAB), Madrid, SpainUNSPECIFIED
Lognonne, A.P.Institut de Physique du Globe de ParisUNSPECIFIED
Banerdt, B.Jet Propulsion Laboratory, Pasadena, CA, USAUNSPECIFIED
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1029/2020JE006757
Page Range:e2020JE006757
Keywords:Mars, InSight, wind, camera, particle transport
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project InSight - HP3
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Hauber, Ernst
Deposited On:09 Jun 2021 07:26
Last Modified:09 Jun 2021 07:26

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