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Obtaining Average Crustal and Uppermost Mantle Properties for Planetary Models of Mars

Kim, D. and Stähler, S. and Boehm, C. and Lekic, V. and Giardini, D. and Wieczorek, M. and Ceylan, S. and Clinton, J. and Khan, A. and Plesa, Ana-Catalina and Panning, M. and Lognonne, A.P. and Banerdt, B. (2023) Obtaining Average Crustal and Uppermost Mantle Properties for Planetary Models of Mars. 54th Lunar and Planetary Science Conference 2023, 13.-17. Mar.2023, The Woodlands, Texas, USA.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2023/pdf/1943.pdf


After more than 4 Earth years (∼1450 sols) of operations on the martian surface monitoring the planet’s ground vibrations, the InSight’s seismometer is now retired. Throughout the mission, analyses of body waves from marsquakes and impacts have led to important discoveries about the planet’s interior structure of the crust, mantle, and core [1-5]. Recent detection of surface waves, together with gravimetric modeling enabled the characterization of crustal structure variations away from the InSight landing site and showed that average crustal velocity and density structure is similar between the northern lowlands and the southern highlands [6-7]. These new constraints obtained by surface wave measurements provide an important opportunity to refine and verify our previous radially symmetric models of the planet’s interior structure. As part of this effort, we obtain the average crustal and uppermost mantle velocities of Mars using Rayleigh waves orbiting the planet multiple times. These higher-orbit Rayleigh wave observables independently constrain the average crustal and uppermost mantle velocities, and crustal thickness, which are found to be consistent with previous InSight studies. Successful incorporating of these velocity constraints into the existing joint inversion framework used for modeling body wave travel times [8], geophysical [9], and geodynamic parameters [10] will improve the current reference 1D interior models of Mars.

Item URL in elib:https://elib.dlr.de/196810/
Document Type:Conference or Workshop Item (Speech)
Title:Obtaining Average Crustal and Uppermost Mantle Properties for Planetary Models of Mars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kim, D.Institute of Geophysics, ETH Zurich, Zurich, Switzerlandhttps://orcid.org/0000-0003-4594-2336UNSPECIFIED
Stähler, S.Institute of Geophysics, ETH Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Boehm, C.Institute of Geophysics, ETH Zurich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lekic, V.Department of Geology, University of Maryland, College Park, USAUNSPECIFIEDUNSPECIFIED
Giardini, D.Institute of Geophysics, Department of Earth Sciences, ETH Zurich, Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Wieczorek, M.Observatoire de la Côte d’Azur, Laboratoire LagrangeUNSPECIFIEDUNSPECIFIED
Ceylan, S.Institute of Geophysics, ETH Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Clinton, J.Swiss Seismological Service, ETH Zürich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Khan, A.Institut für Geophysik, ETH Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Plesa, Ana-CatalinaUNSPECIFIEDhttps://orcid.org/0000-0003-3366-7621UNSPECIFIED
Panning, M.Jet Propulsion Laboratory, California Institute of Technology, PasadenaUSAUNSPECIFIEDUNSPECIFIED
Lognonne, A.P.Institut de Physique du Globe de ParisUNSPECIFIEDUNSPECIFIED
Banerdt, B.Jet Propulsion Laboratory, Pasadena, CA, USAUNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 1943
Series Name:LPI Contribution
Keywords:Mars, InSight, Crustal thickness, Upper mantle, Seismic waves
Event Title:54th Lunar and Planetary Science Conference 2023
Event Location:The Woodlands, Texas, USA
Event Type:international Conference
Event Dates:13.-17. Mar.2023
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 - Exploration of the Solar System, R - Planetary Evolution and Life, R - Project InSight - HP3
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Plesa, Dr. Ana-Catalina
Deposited On:01 Sep 2023 08:21
Last Modified:01 Sep 2023 08:21

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