Determination of the VS profile at a “noisy“ industrial site via active and passive data: The critical role of Love waves and the opportunities of multicomponent group velocity analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F24%3A00587622" target="_blank" >RIV/67985891:_____/24:00587622 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/24:10487513
Result on the web
<a href="https://doi.org/10.1190/GEO2022-0540.1" target="_blank" >https://doi.org/10.1190/GEO2022-0540.1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1190/GEO2022-0540.1" target="_blank" >10.1190/GEO2022-0540.1</a>
Alternative languages
Result language
angličtina
Original language name
Determination of the VS profile at a “noisy“ industrial site via active and passive data: The critical role of Love waves and the opportunities of multicomponent group velocity analysis
Original language description
To define the procedures necessary to unambiguously define the subsurface model, a comprehensive set of active and passive seismic data was collected in an industrial area characterized by an extremely high level of background microtremors. Passive data are recorded to define three observables: the dispersion curve of the vertical component of Rayleigh waves via miniature array analysis of microtremors, the Love-wave dispersion curve via extended spatial autocorrelation, and the horizontal -to -vertical spectral ratio (HVSR). Active data used for the holistic analysis of surface waves are extracted from data recorded through a hybrid acquisition procedure accomplished with only two 3C geophones used to simultaneously define the HVSR at two points. Defined observables are combined according to three different approaches: the joint analysis of Rayleigh waves and HVSR, the joint analysis of Rayleigh and Love waves together with the HVSR, and the joint analysis of multicomponent group velocities together with the HVSR and Rayleigh-wave particle motion (RPM) curves. In agreement with the theory, data indicate that, in general, surface-wave modeling cannot be performed considering modal dispersion curves: dispersion obtained from passive data needs to be modeled considering the effective curve, whereas group velocity obtained from active data can be analyzed using the full velocity spectrum technique. Results indicate that joint inversion of Rayleigh-wave dispersion and HVSR does not necessarily ensure the correctness of the obtained S-wave velocity ( V S ) profile and that Love waves represent a key observable to fully constrain an unambiguous inversion procedure. However, the joint analysis of multicomponent group velocity spectra (from active multicomponent single-offset data) together with the HVSR and RPM curves is a further efficient way to obtain robust V S profiles through the active and passive data obtained by a single 3C geophone.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysics
ISSN
0016-8033
e-ISSN
1942-2156
Volume of the periodical
89
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
"„B209”"-"„B227”"
UT code for WoS article
001252291900003
EID of the result in the Scopus database
2-s2.0-85189445100