Inversion for a State -Wide CVM
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Inversion for a State- Wide CVM
description
Inversion for a State -Wide CVM. Reference model: SCEC Community Velocity Model 4.0. Ambient-Noise Green’s Functions. Dat. Syn. Ambient noise Green’s function data from Denolle et al ., 2009 . 0.05 Hz. - PowerPoint PPT Presentation
Transcript of Inversion for a State -Wide CVM
Inversion for a State-Wide CVM
Reference model: SCEC Community Velocity Model 4.0
Ambient-Noise Green’s Functions
Ambient noise Green’s function data from Denolle et al., 2009
Dat
Syn
Full-3D Fréchet Kernels for Frequency-Dependent Phase-delay Measurements on Ambient-noise Green’s Functions
(Perturbation Kernels for GSDF, Chen et al., GJI, 2010)
0.05 Hz
0.15 Hz
CVM
4CV
M4S
I92km 10km 20km
Rapid full-3D inversion for CMTs in SC, Lee, et al., 2011, GJI
2 km
10 km
20 km
USGS + Lin NC3DAW3 perturbation
BK.BDM (0.02 Hz – 0.04 Hz)
Starting CA3DAW1 Perturbation
2 km
10 km
20 km
To do list
• More CA3D iterations, with higher frequencies• Attenuation inversions in SC
ln(A
d/A s)
dept
hVp
10%
5200 stations (500 were used in the inversion)
Lin, Li & Clayton 2012, SEG Expanded Abstract
Shear structure above 300 m depth
