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  Seasonal seismic activity on Mars

Knapmeyer, M., Stahler, S., Daubar, I., Forget, F., Spiga, A., Pierron, T., et al. (2021). Seasonal seismic activity on Mars. Earth and Planetary Science Letters, 576: 117171. doi:10.1016/j.epsl.2021.117171.

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Knapmeyer, M, Autor
Stahler, SC, Autor
Daubar, I, Autor
Forget, F, Autor
Spiga, A, Autor
Pierron, T, Autor
Van Driel, M, Autor
Banfield, D, Autor
Hauber, E, Autor
Grott, M, Autor
Muller, N, Autor
Perrin, C, Autor
Jacob, A, Autor
Lucas, A, Autor
Knapmeyer-Endrun, B, Autor
Newman, C, Autor
Panning, MP, Autor
Weber, RC, Autor
Calef, FJ, Autor
Bose, M, Autor
Ceylan, S, AutorCharalambous, C, AutorClinton, J, AutorDahmen, N, AutorGiardini, D, AutorHorleston, A, AutorKawamura, T, AutorKhan, A, AutorMainsant, G, AutorPlasman, M, AutorLemmon, M, AutorLorenz, R, AutorPike, WT, AutorScholz, John-Robert1, Autor           Lognonne, P, AutorBanerdt, B, Autor mehr..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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Schlagwörter: Mars Elysium Planitia InSight seasonal seismic activity Phobos
 Zusammenfassung: The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about L-S= 33 degrees, and ceased almost completely by L-S= 187 degrees, following an apparently seasonal variation with a peak rate near aphelion. We define seismic rate models based on the declination of the Sun, annual solar tides, and the annual CO2 cycle as measured by atmospheric pressure. Evaluation of Akaike weights and evidence ratios shows that the declination of the Sun is the most likely, and the CO2 cycle the least likely driver of this seismic activity, although the discrimination is weak, and the occurrence of a few events in August 2020 is in favor for a triggering by CO2 ice load. We also show that no periodicity related to Phobos' orbit is present in the HF event sequence. Event rate forecasts are presented to allow further discrimination of candidate mechanisms from future observations. (C) 2021 The Author(s). Published by Elsevier B.V.

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Sprache(n): eng - English
 Datum: 2021
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.epsl.2021.117171
 Art des Abschluß: -

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Titel: Earth and Planetary Science Letters
  Andere : Earth Planet. Sci. Lett.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 576 Artikelnummer: 117171 Start- / Endseite: - Identifikator: ISSN: 0012-821X
CoNE: https://pure.mpg.de/cone/journals/resource/954925395406