[cig-commits] commit: mv readme.txt to README
Mercurial
hg at geodynamics.org
Sun Dec 23 13:54:17 PST 2012
changeset: 166:eb1905d3eda7
tag: tip
user: Sylvain Barbot <sbarbot at caltech.edu>
date: Sun Dec 23 13:54:13 2012 -0800
files: README readme.txt
description:
mv readme.txt to README
diff -r fd44320171b5 -r eb1905d3eda7 README
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/README Sun Dec 23 13:54:13 2012 -0800
@@ -0,0 +1,103 @@
+
+RELAX - time-dependent postseismic deformation with afterslip and viscoelastic flow.
+
+INSTALLATION:
+
+The code is written in Fortran90 and is optimized for the the gfortran and the
+INTEL ifort compiler. The gmt 4.5+ library is required to export results to GMT
+for post-processing.
+
+DOCUMENTATION:
+
+Generate a .pdf file of the documentation with the command:
+
+pdflatex latex/documentation.tex
+
+Generate a browsable version of the code with:
+
+doxygen .doxygen
+
+RUN:
+
+Some examples are available in the examples directory. Look up the *.sh files for
+comments and explanations.
+
+VISUALIZATION:
+
+Many outputs are exported in the General Mapping Tools (GMT) format, deformation
+maps can be obtained with typical GMT post-processing. Check the post-processing
+and visualization tools available in the 'util' directory.
+Make sure to have the .ps file viewer 'gv' or the .pdf file viewer 'xpdf' installed.
+Simulations can be visualized in 3D with the free software Paraview (paraview.org).
+
+PURPOSE:
+
+The program RELAX computes nonlinear time-dependent viscoelastic deformation with
+powerlaw rheology and rate-strengthening friction in a cubic grid due to coseismic
+stress changes, initial stress, surface loads, and/or moving faults.
+
+DESCRIPTION:
+
+Computation is done semi-analytically inside a cartesian grid. The grid is defined
+by its size sx1*sx2*sx3 and the sampling intervals dx1, dx2 and dx3. Rule of thumb
+is to allow for at least five samples per fault length or width, and to have the
+tip of any fault at least 10 fault widths away from any edge of the computational
+grid.
+
+Coseismic stress changes and initial coseismic deformation results from the
+presence of dislocations in the brittle layer. Fault geometry is prescribed
+following Okada or Wang's convention, with the usual slip, strike, dip and rake and
+is converted to a double-couple equivalent body-force analytically. Current
+implementation allows shear fault (strike slip and dip slip), dykes, Mogi source,
+and surface traction. Faults and dykes can be of arbitrary orientation in the half
+space.
+
+
+INPUT:
+
+Static dislocation sources are discretized into a series of planar segments. Slip
+patches are defined in terms of position, orientation, and slip, as illustrated in
+the following figure:
+
+ N (x1)
+ /
+ /| Strike
+ x1,x2,x3 ->@------------------------ (x2)
+ |\ p . \ W
+ :-\ i . \ i
+ | \ l . \ d
+ :90 \ S . \ t
+ |-Dip\ . \ h
+ : \. | Rake \
+ | -------------------------
+ : L e n g t h
+ Z (x3)
+
+Dislocations are converted to double-couple equivalent body-force analytically.
+Solution displacement is obtained by application of the Green's functions in the
+Fourier domain.
+
+For friction faults where slip rates are evaluated from stress and a constitutive
+law, the rake corresponds to the orientation of slip. That is, if r_i is the rake
+vector and v_i is the instantaneous velocity vector, then r_j v_j >= 0.
+
+REFERENCES:
+
+More information about parameters and constitutive laws can be found in
+
+S. Barbot and Fialko Y., "Fourier-Domain Green's Function for an Elastic Semi-
+Infinite Solid under Gravity, with Applications to Earthquake and Volcano
+Deformation", Geophysical Journal International, v. 182, no. 2, pp. 568-582, 2010,
+doi:10.1111/j.1365-246X.2010.04655.x
+
+and
+
+S. Barbot and Fialko Y., "A Unified Continuum Representation of Postseismic
+Relaxation Mechanisms: Semi-Analytic Models of Afterslip, Poroelastic Rebound and
+Viscoelastic Flow", Geophysical Journal International, v. 182, 3, p. 1124-1140,
+2010, doi:10.1111/j.1365-246X.2010.04678.x
+
+Please cite these papers in publications or public presentations when referring
+to this method.
+
+
diff -r fd44320171b5 -r eb1905d3eda7 readme.txt
--- a/readme.txt Sun Dec 23 13:37:49 2012 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-
-RELAX - time-dependent postseismic deformation with afterslip and viscoelastic flow.
-
-INSTALLATION:
-
-The code is written in Fortran90 and is optimized for the the gfortran and the
-INTEL ifort compiler. The gmt 4.5+ library is required to export results to GMT
-for post-processing.
-
-DOCUMENTATION:
-
-Generate a .pdf file of the documentation with the command:
-
-pdflatex latex/documentation.tex
-
-Generate a browsable version of the code with:
-
-doxygen .doxygen
-
-RUN:
-
-Some examples are available in the examples directory. Look up the *.sh files for
-comments and explanations.
-
-VISUALIZATION:
-
-Many outputs are exported in the General Mapping Tools (GMT) format, deformation
-maps can be obtained with typical GMT post-processing. Check the post-processing
-and visualization tools available in the 'util' directory.
-Make sure to have the .ps file viewer 'gv' or the .pdf file viewer 'xpdf' installed.
-Simulations can be visualized in 3D with the free software Paraview (paraview.org).
-
-PURPOSE:
-
-The program RELAX computes nonlinear time-dependent viscoelastic deformation with
-powerlaw rheology and rate-strengthening friction in a cubic grid due to coseismic
-stress changes, initial stress, surface loads, and/or moving faults.
-
-DESCRIPTION:
-
-Computation is done semi-analytically inside a cartesian grid. The grid is defined
-by its size sx1*sx2*sx3 and the sampling intervals dx1, dx2 and dx3. Rule of thumb
-is to allow for at least five samples per fault length or width, and to have the
-tip of any fault at least 10 fault widths away from any edge of the computational
-grid.
-
-Coseismic stress changes and initial coseismic deformation results from the
-presence of dislocations in the brittle layer. Fault geometry is prescribed
-following Okada or Wang's convention, with the usual slip, strike, dip and rake and
-is converted to a double-couple equivalent body-force analytically. Current
-implementation allows shear fault (strike slip and dip slip), dykes, Mogi source,
-and surface traction. Faults and dykes can be of arbitrary orientation in the half
-space.
-
-
-INPUT:
-
-Static dislocation sources are discretized into a series of planar segments. Slip
-patches are defined in terms of position, orientation, and slip, as illustrated in
-the following figure:
-
- N (x1)
- /
- /| Strike
- x1,x2,x3 ->@------------------------ (x2)
- |\ p . \ W
- :-\ i . \ i
- | \ l . \ d
- :90 \ S . \ t
- |-Dip\ . \ h
- : \. | Rake \
- | -------------------------
- : L e n g t h
- Z (x3)
-
-Dislocations are converted to double-couple equivalent body-force analytically.
-Solution displacement is obtained by application of the Green's functions in the
-Fourier domain.
-
-For friction faults where slip rates are evaluated from stress and a constitutive
-law, the rake corresponds to the orientation of slip. That is, if r_i is the rake
-vector and v_i is the instantaneous velocity vector, then r_j v_j >= 0.
-
-REFERENCES:
-
-More information about parameters and constitutive laws can be found in
-
-S. Barbot and Fialko Y., "Fourier-Domain Green's Function for an Elastic Semi-
-Infinite Solid under Gravity, with Applications to Earthquake and Volcano
-Deformation", Geophysical Journal International, v. 182, no. 2, pp. 568-582, 2010,
-doi:10.1111/j.1365-246X.2010.04655.x
-
-and
-
-S. Barbot and Fialko Y., "A Unified Continuum Representation of Postseismic
-Relaxation Mechanisms: Semi-Analytic Models of Afterslip, Poroelastic Rebound and
-Viscoelastic Flow", Geophysical Journal International, v. 182, 3, p. 1124-1140,
-2010, doi:10.1111/j.1365-246X.2010.04678.x
-
-Please cite these papers in publications or public presentations when referring
-to this method.
-
-
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