Understanding the physics of kappa (κ): insights from a downhole array
OJ Ktenidou, NA Abrahamson… - Geophysical Journal …, 2015 - academic.oup.com
At high frequencies, the acceleration spectral amplitude decreases rapidly; this has been
modelled with the spectral decay factor κ. Its site component, κ 0, is used widely today in …
modelled with the spectral decay factor κ. Its site component, κ 0, is used widely today in …
A Study on the Variability of Kappa (κ) in a Borehole: Implications of the Computation Process
OJ Ktenidou, C Gélis, LF Bonilla - Bulletin of the …, 2013 - pubs.geoscienceworld.org
Abstract Knowledge of the acceleration spectral shape is crucial to various applications in
engineering seismology. Spectral amplitude decays rapidly at high frequencies. introduced …
engineering seismology. Spectral amplitude decays rapidly at high frequencies. introduced …
A κ Model for Mainland France
An important parameter for the characterization of strong ground motion at high-frequencies
(> 1 Hz) is kappa, κ, which models a linear decay of the acceleration spectrum, a (f), in log …
(> 1 Hz) is kappa, κ, which models a linear decay of the acceleration spectrum, a (f), in log …
Within‐station variability in kappa: Evidence of directionality effects
One of the most commonly used parameters to describe seismic attenuation is the high‐
frequency spectral decay parameter Kappa ( κ r), yet the physics behind it remain little …
frequency spectral decay parameter Kappa ( κ r), yet the physics behind it remain little …
κ0: Origin and usability
S Parolai - Bulletin of the Seismological Society of …, 2018 - pubs.geoscienceworld.org
Recent studies have focused on the analysis of the nature of κ 0, as well as its application
for improving seismic hazard assessment. It follows that a better understanding of κ 0 (ie …
for improving seismic hazard assessment. It follows that a better understanding of κ 0 (ie …
Taxonomy of κ: A Review of Definitions and Estimation Approaches Targeted to Applications
OJ Ktenidou, F Cotton… - Seismological …, 2014 - pubs.geoscienceworld.org
In a way perhaps not dissimilar to stress drop (Atkinson and Beresnev, 1997), the high-
frequency attenuation parameter κ (kappa), introduced by Anderson and Hough (1984), is …
frequency attenuation parameter κ (kappa), introduced by Anderson and Hough (1984), is …
Empirical estimation of high‐frequency ground motion on hard rock
OJ Ktenidou, NA Abrahamson - Seismological …, 2016 - pubs.geoscienceworld.org
Site effects for hard‐rock sites are typically computed using analytical models for the effect of
κ 0, the high‐frequency attenuation parameter. New datasets that are richer in hard‐rock …
κ 0, the high‐frequency attenuation parameter. New datasets that are richer in hard‐rock …
Robustness of kappa (κ) measurement in low‐to‐moderate seismicity areas: Insight from a site‐specific study in Provence, France
Determination of the site component of κ (κ 0) is important in the implementation of host‐to‐
target adjustments for estimation of seismic hazard at hard‐rock sites. Its evaluation through …
target adjustments for estimation of seismic hazard at hard‐rock sites. Its evaluation through …
Influence of Soil-Layer Properties on k Evaluation
In this article, we investigate, by means of simulations, the reliability of the attenuation
parameter k when it is evaluated in the presence of site amplification effects. We consider a …
parameter k when it is evaluated in the presence of site amplification effects. We consider a …
A frequency‐dependent model for the shape of the Fourier amplitude spectrum of acceleration at high frequencies
The high‐frequency decay term of the acceleration spectrum κ is a commonly used
parameter in engineering seismology. In recent years, the assumption of a linearly decaying …
parameter in engineering seismology. In recent years, the assumption of a linearly decaying …