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SSA session announcement

Date: 12/16/2014

On behalf of Olga-Joan Ktenidou (Universite Grenoble, CNRS, France):
Dear Colleagues:

We're organizing a special session at the 2015 SSA meeting in Pasadena, where we aim to bring together high frequencies from a seismological point of view (>1 Hz) and high frequencies from an engineering point of view (>5-10 Hz). Whichever side of the spectrum you're on, we hope you will consider sending in an abstract and coming by the session to discuss!

Please note the abstract deadline is January 9 (more details at http://www.seismosoc.org/meetings/2015/).

Thank you, and hope to see you in Pasadena!

Olga, Norm, Kim, and Ralph

Advances in High-frequency Ground Motion and Attenuation
Ground motion at high frequencies (1-30 Hz) has recently been a core issue in large seismic hazard assessment projects, following the Fukushima accident. While existing critical facilities and concrete dams are being reassessed in view of high-frequency response and attenuation, broadband simulations are attempting to reach unprecedented high frequencies. This session welcomes all contributions related to high frequency ground motion, with emphasis on attenuation. Topics of interest include: how physics-based and other broadband simulation techniques handle high-frequency attenuation; crustal attenuation studies; anelastic attenuation and scattering effects at high frequencies; spectral analysis studies where results (Q, stress drop) may be subject to trade-offs between kappa and source, path and site effects in that frequency range; studies of hard-site amplification and rock site characterization; adjustments of ground motion prediction equations (GMPEs) and host-to-target techniques that take into account high-frequency attenuation; new generation GMPEs explicitly accounting for kappa; results and experiences from PSHA projects for critical infrastructure that account for high-frequency attenuation; and work on the estimation, components, and physical interpretation of kappa and fmax.
Session Chairs:
Olga-Joan Ktenidou (Universite Grenoble, CNRS, France), olga.ktenidou@jf-grenoble.fr
Norman A. Abrahamson (PG&E, UC Berkeley), abrahamson@berkeley.edu
Kim Bak Olsen (San Diego State University), kbolsen@mail.sdsu.edu
Ralph Archuleta (UC Santa Barbara), archuleta@ucsb.edu