Drilleau, Melanie, Beucler, Eric, Lognonne, Philippe, Panning, Mark P., Knapmeyer-Endrun, Brigitte, Banerdt, W. Bruce, Beghein, Caroline, Ceylan, Savas, van Driel, Martin, Joshi, Rakshit, Kawamura, Taichi, Khan, Amir, Menina, Sabrina, Rivoldini, Attilio, Samuel, Henri, Stahler, Simon, Xu, Haotian, Bonnin, Mickael, Clinton, John, Giardini, Domenico, Kenda, Balthasar, Lekic, Vedran, Mocquet, Antoine, Murdoch, Naomi, Schimmel, Martin, Smrekar, Suzanne E., Stutzmann, Eleonore, Tauzin, Benoit and Tharimena, Saikiran (2020). MSS/1: Single-Station and Single-Event Marsquake Inversion. Earth Space Sci., 7 (12). WASHINGTON: AMER GEOPHYSICAL UNION. ISSN 2333-5084

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Abstract

SEIS, the seismometer of the InSight mission, which landed on Mars on 26 November 2018, is monitoring the seismic activity of the planet. The goal of the Mars Structure Service (MSS) is to provide, as a mission product, the first average 1-D velocity model of Mars from the recorded InSight data. Prior to the mission, methodologies have been developed and tested to allow the location of the seismic events and estimation of the radial structure, using surface waves and body waves arrival times, and receiver functions. The paper describes these validation tests and compares the performance of the different algorithms to constrain the velocity model below the InSight station and estimate the 1-D average model over the great circle path between source and receiver. These tests were performed in the frame of a blind test, during which synthetic data were inverted. In order to propagate the data uncertainties on the output model distribution, Bayesian inversion techniques are mainly used. The limitations and strengths of the methods are assessed. The results show the potential of the MSS approach to retrieve the structure of the crust and underlying mantle. However, at this time, large quakes with clear surface waves have not yet been recorded by SEIS, which makes the estimation of the 1-D average seismic velocity model challenging. Additional locatable events, especially at large epicentral distances, and development of new techniques to fully investigate the data, will ultimately provide more constraints on the crust and mantle of Mars.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Drilleau, MelanieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beucler, EricUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lognonne, PhilippeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Panning, Mark P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knapmeyer-Endrun, BrigitteUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Banerdt, W. BruceUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beghein, CarolineUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ceylan, SavasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van Driel, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Joshi, RakshitUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kawamura, TaichiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Khan, AmirUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Menina, SabrinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rivoldini, AttilioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Samuel, HenriUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stahler, SimonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xu, HaotianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bonnin, MickaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clinton, JohnUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giardini, DomenicoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kenda, BalthasarUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lekic, VedranUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mocquet, AntoineUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Murdoch, NaomiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schimmel, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Smrekar, Suzanne E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stutzmann, EleonoreUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tauzin, BenoitUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tharimena, SaikiranUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-309214
DOI: 10.1029/2020EA001118
Journal or Publication Title: Earth Space Sci.
Volume: 7
Number: 12
Date: 2020
Publisher: AMER GEOPHYSICAL UNION
Place of Publication: WASHINGTON
ISSN: 2333-5084
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
THERMAL EVOLUTION; INSIGHT MISSION; INTERIOR STRUCTURE; RECEIVER FUNCTIONS; MARTIAN INTERIOR; BULK COMPOSITION; MANTLE MINERALS; MOHO DEPTH; MARS; MODELMultiple languages
Astronomy & Astrophysics; Geosciences, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/30921

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