eprintid: 2105
rev_number: 10
eprint_status: archive
userid: 6
dir: disk0/00/00/21/05
datestamp: 2018-07-23 07:44:08
lastmod: 2018-07-23 07:44:08
status_changed: 2018-07-23 07:44:08
type: article
metadata_visibility: show
creators_name: Gharti, Hom Nath
creators_name: Oye, Volker
creators_name: Roth, Michael
corp_creators: NORSAR
corp_creators: NORSAR
corp_creators: NORSAR
title: Travel times and waveforms of microseismic data in heterogeneous media
subjects: MP2
subjects: RFi1
subjects: SMU
divisions: IP1
full_text_status: none
abstract: 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.
date: 2008
date_type: published
publication: SEG Technical Program Expanded Abstracts 2008
publisher: Society of Exploration Geophysicists
pagerange: 1337-1341
id_number: doi:10.1190/1.3059162
issn: 1949-4645
book_title: SEG Technical Program Expanded Abstracts 2008
official_url: http://doi.org/10.1190/1.3059162
access_IS-EPOS: limited
owner: Publisher
citation:   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>