TY  - JOUR
ID  - epos2105
UR  - http://doi.org/10.1190/1.3059162
A1  - Gharti, Hom Nath
A1  - Oye, Volker
A1  - Roth, Michael
Y1  - 2008///
N2  - 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.
PB  - Society of Exploration Geophysicists
JF  - SEG Technical Program Expanded Abstracts 2008
SN  - 1949-4645
TI  - Travel times and waveforms of microseismic data in heterogeneous media
SP  - 1337
AV  - none
EP  - 1341
ER  -