Publication Date:
2017-04-04
Description:
We present topographic slope positions of seismic stations within four independent networks (IGUT, IIEES, GSI, and BHRC) in Iran through integrated use of digital elevation models and GIS. Since topographic amplification factor (TAF) due to ground
surface irregularity could be one of the reasons of earthquake wave amplification and unexpected damage of structures located on the top of ridges in many previous studies, the ridge stations in the study area are recognized using topographic position index (TPI) as a spatial-based scale-dependent approach that helps in classification of topographic positions. We also present the correlation between local topographic positions and Vs30 along with Voronoi tiles of two networks (IGUT and IIEES). The obtained results can be profitably used in
seismology to establish homogeneous subnetworks based on Voronoi tiles with precise feedback and in the formulation of new ground motion prediction equations with respect to topographic position and topographic amplification factor.
Description:
Ministry of Education, Culture, Sports, Science and Technology of Japan with Grant-in-Aid for Scientific Research (B), No. 25289139
Description:
Published
Description:
949 - 967
Description:
3T. Pericolosità sismica e contributo alla definizione del rischio
Description:
JCR Journal
Description:
restricted
Keywords:
Iran
;
GIS
;
Digital elevation model
;
Topographic amplification factor
;
Topographic position index
;
04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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