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1000 Titel
  • Imaging seismic wave-fields with AlpArray and neighboring European networks
1000 Autor/in
  1. Tesch, M. |
  2. Stampa, J. |
  3. Meier, T. |
  4. Kissling, E. |
  5. Hetényi, G. |
  6. Friederich, W. |
  7. Weber, M. |
  8. Heit, B. |
1000 Erscheinungsjahr 2021
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2021-11-25
1000 Erschienen in
1000 Quellenangabe
  • 111(1):321-334
1000 Copyrightjahr
  • 2021
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1007/s00531-021-02116-7 |
1000 Publikationsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • <jats:title>Abstract</jats:title><jats:p>The AlpArray experiment and the deployment of Swath-D together with the dense permanent network in Italy allow for detailed imaging of the spatio-temporal imaging complexity of seismic wave-fields within the greater Alpine region. The distance of any point within the area to the nearest station is less than 30 km, resulting in an average inter-station distance of about 45 km. With a much denser deployment in a smaller region of the Alps (320 km in length and 140 km wide), the Swath-D network possesses an average inter-station distance of about 15 km. We show that seismogram sections with a spatial sampling of less than 5 km can be obtained using recordings of these regional arrays for just a single event. Multiply reflected body waves can be observed for up to 2 h after source time. In addition, we provide and describe animations of long-period seismic wave-fields using recordings of about 1300–1600 broadband stations for six representative earthquakes. These illustrate the considerable spatio-temporal variability of the wave-field’s properties at a high lateral resolution. Within denser station distributions like those provided by Swath-D, even shorter period body and surface wave features can be recovered. The decrease of the horizontal wavelength from to to surface waves, deviations from spherically symmetric wavefronts, and the capability to detect multi-orbit arrivals are demonstrated qualitatively by the presented wave-field animations, which are a valuable tool for educational, quality control, and research purposes. We note that the information content of the acquired datasets can only be adequately explored by application of appropriate quantitative methods accounting for the considerable complexity of the seismic wave-fields as revealed by the now available station configuration.</jats:p>
1000 Sacherschließung
lokal AlpArray
lokal Swath-D
lokal Original Paper
lokal Seismology
lokal Animations
lokal Wave-fields
lokal Alps
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/uri/VGVzY2gsIE0u|https://frl.publisso.de/adhoc/uri/U3RhbXBhLCBKLg==|https://frl.publisso.de/adhoc/uri/TWVpZXIsIFQu|https://frl.publisso.de/adhoc/uri/S2lzc2xpbmcsIEUu|https://frl.publisso.de/adhoc/uri/SGV0w6lueWksIEcu|https://frl.publisso.de/adhoc/uri/RnJpZWRlcmljaCwgVy4=|https://frl.publisso.de/adhoc/uri/V2ViZXIsIE0u|https://frl.publisso.de/adhoc/uri/SGVpdCwgQi4=
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