[cig-commits] r22960 - seismo/3D/SPECFEM3D/trunk/doc

[dkomati1 at geodynamics.org]

Author: dkomati1
Date: 2013-10-13 16:01:39 -0700 (Sun, 13 Oct 2013)
New Revision: 22960

Added:
   seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation_bis.txt
Removed:
   seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation bis.txt
Log:
renamed a file


Deleted: seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation bis.txt
===================================================================
--- seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation bis.txt	2013-10-10 16:10:17 UTC (rev 22959)
+++ seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation bis.txt	2013-10-13 23:01:39 UTC (rev 22960)
@@ -1,70 +0,0 @@
-SPECFEM3D has the capability to compute the perturbations of gravity 
-induced by seismic waves at arbitrary locations above the Earth's surface. 
-The current file documents the usage of this feature and the related code 
-modifications.
-
-
-Theory
-------
-
-The computation of gravity perturbations induced by deformation is based on 
-equation 4 of:
-J. Harms, R. DeSalvo, S. Dorsher and V. Mandic (2009), "Simulation of underground
-gravity gradients from stochastic seismic fields", Phys. Rev. D, 80, 122001
-
-
-Enabling gravity computations
------------------------------
-
-Gravity perturbation can be computed in any SPECFEM3D simulation by 
-placing a file called "gravity_stations" in the DATA directory, in 
-addition to the regular input files.
-
-
-Input file format
------------------
-
-The format of the "gravity_stations" input file is:
-
-n	dt_gap
-x1	y1	z1
-x2	y2	z2
-...	...	...
-xn	yn 	zn
-
-where
- n : number of stations where gravity time series are needed
- dt_gap : gravity time series are sampled every dt_gap time steps of the 
-          SPECFEM3D simulation
-
-
-Output file format
------------------
-
-Time series of gravity are output in files named "OUTPUT_FILES/stat*.grav",
-where * is the station index (one file per station). Their format is four
-columns:
-  t  ax  ay  az 
-(time and acceleration along x, y and z, respectively).
-
-
-Code modifications
-------------------
-
-All the routines related to the gravity perturbation computations are 
-placed in one module called specfem3d/gravity_perturbation.f90. The module 
-provides three public subroutines and a flag. Each subroutine is invoked 
-in one of the following stages:
- 1. during the initialization, 
- 2. during the iterative time stepping scheme and 
- 3. at the output stage.
-In #1 the code checks for the presence of the input file "gravity_stations". 
-If the file exists, the flag "GRAVITY_SIMULATION" is turned on and the 
-subroutines #2 and #3 are invoked.
-
-
-Author
-------
-
-Surendra Somala (Caltech) surendra at caltech.edu - 2013
-with advice from Jan Harms and Pablo Ampuero (ampuero at gps.caltech.edu)

Copied: seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation_bis.txt (from rev 22959, seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation bis.txt)
===================================================================
--- seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation_bis.txt	                        (rev 0)
+++ seismo/3D/SPECFEM3D/trunk/doc/README_gravityPerturbation_bis.txt	2013-10-13 23:01:39 UTC (rev 22960)
@@ -0,0 +1,70 @@
+SPECFEM3D has the capability to compute the perturbations of gravity 
+induced by seismic waves at arbitrary locations above the Earth's surface. 
+The current file documents the usage of this feature and the related code 
+modifications.
+
+
+Theory
+------
+
+The computation of gravity perturbations induced by deformation is based on 
+equation 4 of:
+J. Harms, R. DeSalvo, S. Dorsher and V. Mandic (2009), "Simulation of underground
+gravity gradients from stochastic seismic fields", Phys. Rev. D, 80, 122001
+
+
+Enabling gravity computations
+-----------------------------
+
+Gravity perturbation can be computed in any SPECFEM3D simulation by 
+placing a file called "gravity_stations" in the DATA directory, in 
+addition to the regular input files.
+
+
+Input file format
+-----------------
+
+The format of the "gravity_stations" input file is:
+
+n	dt_gap
+x1	y1	z1
+x2	y2	z2
+...	...	...
+xn	yn 	zn
+
+where
+ n : number of stations where gravity time series are needed
+ dt_gap : gravity time series are sampled every dt_gap time steps of the 
+          SPECFEM3D simulation
+
+
+Output file format
+-----------------
+
+Time series of gravity are output in files named "OUTPUT_FILES/stat*.grav",
+where * is the station index (one file per station). Their format is four
+columns:
+  t  ax  ay  az 
+(time and acceleration along x, y and z, respectively).
+
+
+Code modifications
+------------------
+
+All the routines related to the gravity perturbation computations are 
+placed in one module called specfem3d/gravity_perturbation.f90. The module 
+provides three public subroutines and a flag. Each subroutine is invoked 
+in one of the following stages:
+ 1. during the initialization, 
+ 2. during the iterative time stepping scheme and 
+ 3. at the output stage.
+In #1 the code checks for the presence of the input file "gravity_stations". 
+If the file exists, the flag "GRAVITY_SIMULATION" is turned on and the 
+subroutines #2 and #3 are invoked.
+
+
+Author
+------
+
+Surendra Somala (Caltech) surendra at caltech.edu - 2013
+with advice from Jan Harms and Pablo Ampuero (ampuero at gps.caltech.edu)