Knapmeyer, M., Stahler, S. C., Daubar, I, Forget, F., Spiga, A., Pierron, T., van Driel, M., Banfield, D., Hauber, E., Grott, M., Mueller, N., Perrin, C., Jacob, A., Lucas, A., Knapmeyer-Endrun, B., Newman, C., Panning, M. P., Weber, R. C., Calef, F. J., Bose, M., Ceylan, S., Charalambous, C., Clinton, J., Dahmen, N., Giardini, D., Horleston, A., Kawamura, T., Khan, A., Mainsant, G., Plasman, M., Lemmon, M., Lorenz, R., Pike, W. T., Scholz, J-R, Lognonne, P. and Banerdt, B. (2021). Seasonal seismic activity on Mars. Earth Planet. Sci. Lett., 576. AMSTERDAM: ELSEVIER. ISSN 1385-013X

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Abstract

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.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Knapmeyer, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stahler, S. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Daubar, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Forget, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spiga, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pierron, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van Driel, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Banfield, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hauber, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grott, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mueller, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perrin, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jacob, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lucas, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knapmeyer-Endrun, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Newman, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Panning, M. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weber, R. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Calef, F. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bose, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ceylan, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Charalambous, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clinton, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dahmen, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giardini, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Horleston, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kawamura, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Khan, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mainsant, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Plasman, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lemmon, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lorenz, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pike, W. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scholz, J-RUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lognonne, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Banerdt, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-605146
DOI: 10.1016/j.epsl.2021.117171
Journal or Publication Title: Earth Planet. Sci. Lett.
Volume: 576
Date: 2021
Publisher: ELSEVIER
Place of Publication: AMSTERDAM
ISSN: 1385-013X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MARTIAN GULLIES; CRATERING RATE; RESERVOIR; PARAMETERS; MECHANISMSMultiple languages
Geochemistry & GeophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60514

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