Commit b5ce9f49 authored by niklas.thiel's avatar niklas.thiel

added desciption of double-couple source in manual

parent faee198a
......@@ -99,7 +99,7 @@ The program checks these criteria for the entire model, outputs a warning messag
"SOURCE_TYPE" : "3",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;
rotated_force=4" : "comment",
rotated_force=4;double-couple=5" : "comment",
"SRCREC" : "1",
"SRCREC values : read source positions from SOURCE_FILE=1,
......@@ -187,6 +187,8 @@ The wavelets in each su file must have the same number of samples as specified b
The following source types are availabe: explosive sources that excite compressional waves only (SOURCE\_TYPE=1), and point forces in the x- and y-direction (SOURCE\_TYPE=2,3).
The force sources excite both P- and S-waves. The explosive source is located at the same position as the diagonal elements of the stress tensor, i.e. at (i,j) (Figure \ref{fig_cell}).
The forces are located at the same position as the corresponding components of particle velocity (Figure \ref{fig_cell}). If (x,y) denotes the position at which the source location is defined in source.dat, then the actual force in x-direction is located at (x+DX/2,y) and the actual force in y-direction is located at (x,y+DY/2). With SOURCE\_TYPE=4 a custom directive force can be defined by a force angle between y and x. The angle of the force must be specified in the SOURCE\_FILE after AMP. This force is not aligned along the main directions.
By using SOURCE\_TYPE=5, a 2D double-couple source is activated. The $M_0$ of the moment tensor is given in AMP in the SOURCE\_FILE, the angle in degree also in the SOURCE\_FILE at the SOURCE\_AZIMUTH position.
\newline
The locations of multiple sources must be defined in an external ASCII file (SOURCE\_FILE) that has the following format:
......@@ -199,7 +201,7 @@ In the following lines, you can define certain parameters for each source point:
The first line must be the overall number of sources (NSRC). XSRC is the x-coordinate of a source point (in meter), YSRC is the y-coordinate of a source point (in meter). ZSRC is the z-coordinate should always be set to 0.0, because IFOS2D is a 2D code. TD is the excitation time (time-delay) for the source point (in seconds), FC is the center frequency of the source signal (in Hz), and AMP is the maximum amplitude of the source signal.
\newline
\textbf{Optional parameter:} The SOURCE\_AZIMUTH if SOURCE\_TYPE is 4. The SOURCE\_AZIMUTH is the angle between the y- and x-direction in degree and with SOURCE\_TYPE if SOURCE\_TYPE is set here, the value of SOURCE\_TYPE in the input file is ignored.
\textbf{Optional parameter:} The SOURCE\_AZIMUTH if SOURCE\_TYPE is 4 or 5. The SOURCE\_AZIMUTH is the angle between the y- and x-direction in degree and with SOURCE\_TYPE if SOURCE\_TYPE is set here, the value of SOURCE\_TYPE in the input file is ignored.
The SOURCE\_FILE = ./sources/source.dat that defines an explosive source at $x_s=2592.0\;$ m and $y_s=2106.0\;$ m with
a center frequency of 5 Hz (no time delay) is
......
......@@ -23,7 +23,7 @@
"SIGNAL_FILE" : "./ormsby.dat",
"SOURCE_TYPE" : "3",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4" : "comment",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4;double-couple=5" : "comment",
"SOURCE_FILE" : "./source/sources.dat",
"RUN_MULTIPLE_SHOTS" : "1",
......
......@@ -23,7 +23,7 @@
"SIGNAL_FILE" : "./ormsby.dat",
"SOURCE_TYPE" : "3",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4" : "comment",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4;double-couple=5" : "comment",
"SOURCE_FILE" : "./source/sources.dat",
"RUN_MULTIPLE_SHOTS" : "1",
......
......@@ -23,7 +23,7 @@
"SIGNAL_FILE" : "./STF/stf.su",
"SOURCE_TYPE" : "3",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4" : "comment",
"SOURCE_TYPE values (point_source): explosive=1;force_in_x=2;force_in_y=3;rotated_force=4;double-couple=5" : "comment",
"SOURCE_FILE" : "./source/sources.dat",
"RUN_MULTIPLE_SHOTS" : "1",
......
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