relation: https://episodesplatform.eu/eprints/2105/
title: Travel times and waveforms of microseismic data in heterogeneous media
creator: Gharti, Hom Nath
creator: Oye, Volker
creator: Roth, Michael
subject: Collective properties of seismicity
subject: Pyhäjärvi
subject: Underground mining
description: We compute P‐ and S‐wave first arrival times for a heterogeneous model of the Pyhäsalmi ore mine using a finite‐difference Eikonal code (Podvin and Lecomte, 1991). For the very same model we are computing the complete wavefield using a viscoelastic finite difference scheme (Larsen and Schultz, 1995). We compare the synthetic results amongst each other and with real microseismic data recorded with an in‐mine seismic network. The resulting first arrival times generally agree with the onset of the synthetic wavefield, whereas the amplitude distribution is strongly affected by the heterogeneities in the model. Such amplitude variations at the different in‐mine geophones as well as P‐ and S‐wave coda lengths generally agree with the observed microseismic data.
publisher: Society of Exploration Geophysicists
date: 2008
type: Article
type: NonPeerReviewed
identifier:   Gharti, Hom Nath and Oye, Volker and Roth, Michael  (2008) Travel times and waveforms of microseismic data in heterogeneous media.  SEG Technical Program Expanded Abstracts 2008.  pp. 1337-1341. DOI: https://doi.org/10.1190/1.3059162 <https://doi.org/10.1190/1.3059162>     
relation: http://doi.org/10.1190/1.3059162
relation: doi:10.1190/1.3059162