Record details

    Comment on the seismic method Depth-Recursive Tomography on Grid (DRTG) developed by Miroslav Novotný and recently published in three papers in Surveys in Geophysics
    Babuška, Vladislav
    Grad, M.
    Hrubcová, Pavla
    Środa, P.
    Vavryčuk, Václav
Publication type
    článek v odborném periodiku
Source title - serial
    Surveys in Geophysics
    Roč. 34, č. 4
    s. 521-529
    Rozsah: 9 s. : P
Subject category
    Bohemian Massif
    DRTG tomography approach
    seismic refraction method
Abstract (in english)
   The Comment addresses three papers published recently in Surveys in Geophysics. These papers are related, using the same seismic tomography approach (Depth-Recursive Tomography on Grid - DRTG) developed by the same first author and deal with modelling of seismic refraction crustal data in the Bohemian Massif and their geological interpretation. The comment shows essential deficiencies of the DRTG approach. Three synthetic tests disclose that the ray coverage at deeper parts of the models drops dramatically and such a ray coverage is not sufficient to reliably recover the structure. Thus, the application of DRTG tomography overestimates the data constraints in large parts of the model, which result in unconstrained velocity anomalies at depths below ~8 km. For these reasons, the velocity models derived from DRTG tomography and their geological interpretations cannot be accepted.
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
Import date
    23. 10. 2014