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Article Dans Une Revue Earth System Science Data Année : 2023

Moho depths beneath the European Alps: a homogeneously processed map and receiver functions database

Luciana Bonatto
Wojciech Czuba
Massimo Di Bona
  • Fonction : Auteur
Aladino Govoni
Katrin Hannemann
  • Fonction : Auteur
Tomasz Janik
Dániel Kalmár
  • Fonction : Auteur
Rainer Kind
  • Fonction : Auteur
Frederik Link
Francesco Pio Lucente
  • Fonction : Auteur
Stephen Monna
Caterina Montuori
Stefan Mroczek
  • Fonction : Auteur
Claudia Piromallo
Jaroslava Plomerová
Julia Rewers
Simone Salimbeni
Frederik Tilmann
  • Fonction : Auteur
Piotr Środa
  • Fonction : Auteur

Résumé

Abstract. We use seismic waveform data from the AlpArray Seismic Network and three other temporary seismic networks, to perform receiver function (RF) calculations and time-to-depth migration to update the knowledge of the Moho discontinuity beneath the broader European Alps. In particular, we set up a homogeneous processing scheme to compute RFs using the time-domain iterative deconvolution method and apply consistent quality control to yield 112 205 high-quality RFs. We then perform time-to-depth migration in a newly implemented 3D spherical coordinate system using a European-scale reference P and S wave velocity model. This approach, together with the dense data coverage, provide us with a 3D migrated volume, from which we present migrated profiles that reflect the first-order crustal thickness structure. We create a detailed Moho map by manually picking the discontinuity in a set of orthogonal profiles covering the entire area. We make the RF dataset, the software for the entire processing workflow, as well as the Moho map, openly available; these open-access datasets and results will allow other researchers to build on the current study.
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hal-04106518 , version 1 (27-05-2023)

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Konstantinos Michailos, György Hetényi, Matteo Scarponi, Josip Stipčević, Irene Bianchi, et al.. Moho depths beneath the European Alps: a homogeneously processed map and receiver functions database. Earth System Science Data, 2023, 15 (5), pp.2117-2138. ⟨10.5194/essd-15-2117-2023⟩. ⟨hal-04106518⟩
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