Scientific article
Open access

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

Published inEarth system science data, vol. 15, no. 5, p. 2117-2138
Publication date2023-05-24

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.

Affiliation Not a UNIGE publication
Citation (ISO format)
MICHAILOS, Konstantinos et al. Moho depths beneath the European Alps: a homogeneously processed map and receiver functions database. In: Earth system science data, 2023, vol. 15, n° 5, p. 2117–2138. doi: 10.5194/essd-15-2117-2023
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Article (Published version)
ISSN of the journal1866-3508

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