Scattering Attenuation of the Martian Interior through Coda Wave Analysis
| العنوان: | Scattering Attenuation of the Martian Interior through Coda Wave Analysis |
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| المؤلفون: | Domenico Giardini, Do-Yeon Kim, Bruce Banerdt, Philippe Lognonné, Ceri Nunn, Ross Maguire, Nicholas Schmerr, Taichi Kawamura, Foivos Karakostas, Quancheng Huang, Vedran Lekic, Sabrina Menina, Ludovic Margerin |
| المساهمون: | Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), ANR-19-CE31-0008,MAGIS,MArs Geophysical InSight(2019), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-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) |
| المصدر: | Bulletin of the Seismological Society of America Bulletin of the Seismological Society of America, 2021, ⟨10.1785/0120210253⟩ Bulletin of the Seismological Society of America, Seismological Society of America, 2021, ⟨10.1785/0120210253⟩ Bull Seismol Soc Am |
| بيانات النشر: | HAL CCSD, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Martian, Geophysics, 010504 meteorology & atmospheric sciences, Geochemistry and Petrology, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Scattering attenuation, 010502 geochemistry & geophysics, 01 natural sciences, Geology, Article, 0105 earth and related environmental sciences, Coda |
| الوصف: | We investigate the scattering attenuation characteristics of the Martian crust and uppermost mantle to understand the structure of the Martian interior. We examine the energy decay of the spectral envelopes for 21 high-quality Martian seismic events from sols 128 to 500 of InSight operations. We use the model of Dainty, Toksöz, et al. (1974) to approximate the behavior of energy envelopes resulting from scattered wave propagation through a single diffusive layer over an elastic half-space. Using a grid search, we mapped the layer parameters that fit the observed InSight data envelopes. The single diffusive layer model provided better fits to the observed energy envelopes for high-frequency (HF) and very-high-frequency (VF) than for the low-frequency and broadband events. This result is consistent with the suggested source depths (Giardini et al., 2020) for these families of events and their expected interaction with a shallow scattering layer. The shapes of the observed data envelopes do not show a consistent pattern with event distance, suggesting that the diffusivity and scattering layer thickness is nonuniform in the vicinity of InSight at Mars. Given the consistency in the envelope shapes between HF and VF events across epicentral distances and the trade-offs between the parameters that control scattering, the dimensions of the scattering layer remain unconstrained but require that scattering strength decreases with depth and that the rate of decay in scattering strength is the fastest near the surface. This is generally consistent with the processes that would form scattering structures in planetary lithospheres. |
| اللغة: | English |
| تدمد: | 0037-1106 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::321f15a8c9dda5a2300cd8bc33ab37c5 https://hal.science/hal-03406123/file/Scattering_Attenuation_of_the_Martian_Interior_through_Coda_Wave_Analysis___FINAL.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....321f15a8c9dda5a2300cd8bc33ab37c5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00371106 |
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