On the seismic noise wavefield in a weakly dissipative layered Earth
Current time: 11-13-2018, 05:06 PM
Users browsing this thread: 1 Guest(s)
Author: lisine
Last Post: lisine
Replies 0
Views 1043

On the seismic noise wavefield in a weakly dissipative layered Earth
#1
On the seismic noise wavefield in a weakly dissipative layered Earth

Author: Enrico Lunedei, Dario Albarello | Size: 1.0 MB | Format: PDF | Quality: Original preprint | Publisher: Geophysical Journal International, Vol. 177, Iss. 3 | Year: June 2009 | pages: 1001–1014


[Image: info.png]

SUMMARY
Proceeding on the assumption that the seismic noise wavefield mainly consists of surface waves generated by a random distribution of independent, point-like and harmonic sources, we modelled a set of relationships that allows us to interpret empirical H/V and apparent dispersion curves in terms of the dynamic properties of a viscoelastic layered Earth. This formalization can be used to determine the effect of material damping on the expected noise wavefield in cases where the sources are relatively distant from the receivers and where the frequencies taken into account are higher than the fundamental resonance frequency of the local subsoil. Numerical experiments indicate that such effects are significant on the H/V ratio curve, whereas the apparent dispersion curve appears to be less strongly influenced by damping. This finding opens new perspectives for the use of noise measurements to infer the in situ anelastic properties of subsoil from passive seismic measurements made at the surface.

[Image: download.png]
Paper + Errata
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



[-] The following 6 users say Thank You to lisine for this post:
  • kowheng, mary, zrilek, Dell_Brett, melkat, sodapas
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Seismic earth pressures on retaining structures in cohesionless soils bridgeengineer 0 1,089 04-22-2016, 07:06 AM
Last Post: bridgeengineer
Seismic earth pressures on retaining structures with cohesive backfills bridgeengineer 0 1,073 04-21-2016, 10:18 PM
Last Post: bridgeengineer
Seismic response of earth dams: some recent developments TAFATNEB 0 969 08-12-2014, 10:33 AM
Last Post: TAFATNEB
SEISMIC DESIGN of EARTH DAMS AND EMBANKMENTS mowafi3m 1 1,440 10-12-2013, 03:05 PM
Last Post: ssobhan
Noise wall design guideline Design guidelines to improve the appearance of noise wall ir_71 1 2,397 04-08-2013, 01:57 PM
Last Post: andersen3



Users browsing this thread: 1 Guest(s)