Seasonal seismic activity on Mars

Autor: Knapmeyer, Martin, Stähler, S., Daubar, I., Forget, F., Spiga, A., Pierron, T., Van Driel, M., Banfield, D., Hauber, Ernst, Grott, Matthias, Müller, Nils, Perrin, C., Jacob, A., Lucas, A., Knapmeyer-Endrun, B., Newman, C., Panning, M.P., Weber, R.C., Calef, F., Böse, 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. D., Pike, W.T., Scholz, J.-R., Lognonne, P., Banerdt, B.
Přispěvatelé: Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), Geological Institute (ETHZ), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Johns Hopkins University (JHU)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Earth and Planetary Science Letters, 576
Earth and Planetary Science Letters
Earth and Planetary Science Letters, Elsevier, 2021, 576, pp.117171. ⟨10.1016/j.epsl.2021.117171⟩
Knapmeyer, M, Stähler, S C, Daubar, I, Forget, F, Spiga, A, Pierron, T, van Driel, M, Banfield, D, Hauber, E, Grott, M, Muller, N, Perrin, C, Jacob, A, Lucas, A, Knapmeyer-Endrun, B, Newman, CP, Panning, M, Weber, R, Calef, F J, Böse, M, Ceylan, S, Charalambous, C, Clinton, J, Dahmen, N L, Giardini, D, Horleston, A C, Kawamura, T, Khan, A, Mainsant, G, Plasman, M, Lemmon, MA, Lorenz, R, Pike, W T, Scholz, J-R, Lognonné, P & Banerdt, W B 2022, ' Seasonal seismic activity on Mars ', Earth and Planetary Science Letters, vol. 576, 117171 . https://doi.org/10.1016/j.epsl.2021.117171
ISSN: 0012-821X
DOI: 10.1016/j.epsl.2021.117171⟩
Popis: The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about Ls =33°, and ceased almost completely by Ls =187°, 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. ISSN:0012-821X ISSN:1385-013X
Databáze: OpenAIRE
Externí odkaz: