CVM-S4.26 Proposed Final Model: Difference between revisions

From SCECpedia
Jump to navigationJump to search
Davidgil (talk | contribs)
Created page with '==Description == The TJ model was first described by Tom Jordan. In this model, we set the CVM-S4 value as the floor for the perturbations in areas where Vs <1000m/s.'
 
Davidgil (talk | contribs)
Line 1: Line 1:
==Description ==
==Description ==


The TJ model was first described by Tom Jordan. In this model, we set the CVM-S4 value as the floor for the perturbations in areas where Vs <1000m/s.
The CVM-S4.26 proposed final model was first described by Tom Jordan as an effort to integrate Po's perturbations while still honoring the CVM-S4 GTL.
 
== Algorithm ==
 
The proposed final model incorporates Po's 26th iteration in the following manner:
 
BASE Vp, Vs, Rho = CVM-S4 material properties<br />
STARTING Vp, Vs, Rho = Po and En-Jui's starting model from which all the iterations were derived<br />
FINAL Vp, Vs, Rho = Returned material properties<br />
PERTURBATION Vp, Vs, Rho = Po and En-Jui's 26th iteration of perturbations<br />
 
IF BASE Vs < 1000m/s THEN<br />
&nbsp;&nbsp;&nbsp;&nbsp;IF BASE Vs + PERTURBATION Vs < BASE Vs THEN<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vp = BASE Vp<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vs = BASE Vs<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Rho = BASE Rho<br />
&nbsp;&nbsp;&nbsp;&nbsp;ELSE<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vp = BASE Vp + PERTURBATION Vp<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vs = BASE Vs + PERTURBATION Vs<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FINAL Rho = BASE Rho + PERTURBATION Rho<br />
&nbsp;&nbsp;&nbsp;&nbsp;END IF<br />
ELSE<br />
&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vp = STARTING Vp + PERTURBATION Vp<br />
&nbsp;&nbsp;&nbsp;&nbsp;FINAL Vs = STARTING Vs + PERTURBATION Vs<br />
&nbsp;&nbsp;&nbsp;&nbsp;FINAL Rho = STARTING Rho + PERTURBATION Rho<br />
END IF<br />

Revision as of 22:08, 21 October 2013

Description

The CVM-S4.26 proposed final model was first described by Tom Jordan as an effort to integrate Po's perturbations while still honoring the CVM-S4 GTL.

Algorithm

The proposed final model incorporates Po's 26th iteration in the following manner:

BASE Vp, Vs, Rho = CVM-S4 material properties
STARTING Vp, Vs, Rho = Po and En-Jui's starting model from which all the iterations were derived
FINAL Vp, Vs, Rho = Returned material properties
PERTURBATION Vp, Vs, Rho = Po and En-Jui's 26th iteration of perturbations

IF BASE Vs < 1000m/s THEN
    IF BASE Vs + PERTURBATION Vs < BASE Vs THEN
        FINAL Vp = BASE Vp
        FINAL Vs = BASE Vs
        FINAL Rho = BASE Rho
    ELSE
        FINAL Vp = BASE Vp + PERTURBATION Vp
        FINAL Vs = BASE Vs + PERTURBATION Vs
        FINAL Rho = BASE Rho + PERTURBATION Rho
    END IF
ELSE
    FINAL Vp = STARTING Vp + PERTURBATION Vp
    FINAL Vs = STARTING Vs + PERTURBATION Vs
    FINAL Rho = STARTING Rho + PERTURBATION Rho
END IF