Insights into bedrock surface morphology using low-cost passive seismic surveys and integrated geostatistical analysis.

摘要: The HVSR (Horizontal to Vertical Spectral Ratio) technique is very popular in the context of seismic microzonation and for mapping shallow reflectors, such as sediment/bedrock transition surface. This easy-to-deploy single station passive permits collection a considerable amount data cost-effective way. It not surprising that some recent studies have adopted micro-tremor analyses order retrieve information on geological structures 1D, 2D or even 3D reconstructions. However, interpolation approaches followed these extending punctual spatially are supported by detailed spatial statistical analysis. Conversely, exploit informative content quantify related uncertainty it necessary utilize deep analysis objective approaches. Moreover, approach should make possible use expert knowledge auxiliary information. Accordingly, we present an integrated geostatistical applied data, collected retrieving morphology buried bedrock study conducted experimental dataset 116 small thermal basin located Venetian Plain (Caldiero Basin, N-E Italy). explorative coupled with kriging techniques permit extraction relevant resonance properties subsoil. utilized approach, based external drift (or its extension, i.e. regression kriging), researcher take into account information, evaluate prediction uncertainty, highlight abrupt variations subsoil frequencies. results discussed, also reflections pertaining geo-engineering geo-environmental context.