The following is an example of a parameter input file. It demonstrates how one can incorporate comments into the file, as well as how to specify variable values.
# This is an example parameter file that can be used with the routine # RASTERTC. This file also documents the values that may be used with # the routine. # # === The following rules for constructing the file are used. === # # 1. Any line beginning with a pound sign (#) is completely ignored. # This permits users to enter copious comments into the file. Also, # lines that are completely blank are ignored, as well. # 2. Any information on a line after a pound sign (#), including the # pound sign itself, is ignored. # 3. Lines, except for comment lines, should never exceed 80 characters # in length. # 4. An equals sign (=) MUST appear between the name of a variable and # the value of the variable. # 5. File names provided should be <= 64 characters in length. # 6. The case (upper, lower, or mixed) of a variable name provided is # irrelevant. The case of the variable values is also irrelevant, # except for the case of any file names provided. # # Example: DENSITY=2.67 and density=2.67 are equivalent. # # 7. If one wishes to use the debugging feature of RASTERTC, it is best # to always provide the value of the variable DEBUG as the first # variable provided in the input file. # 8. The BOOLEAN variables DEBUG and VERBOSE can be set TRUE by specifying # them as either "true", "on", or "yes" (without the quotation marks). # Any other values imply FALSE. # 9. The only variables for which one MUST provide a value are "gravfile" # and "demfile". The program will not execute if these values are # not provided. Defaults are taken for ALL other variable values. # 10. Blanks may appear on either side of the equals sign (=). For example, # "rmin = 50.0", "rmin= 50.0", and "rmin =50.0" are equivalent. # debug=off verbose=on # Specify whether terrain surfaces near are to be saved as Surfer # gridfiles (1) or Geosoft gridfiles (2). If no such surfaces are # to be saved (the default), specify 0. savesurf=1 # Should be 0, 1, or 2. gravfile=TestData.dat auxelevfile= listfile=RasterTC4.lst outfile=RasterTC4.out csvfile=RasterTC4.csv rmin=10.0 rmed=300.0 angle=6 # specified in degrees (must divide evenly into 360) rcurve=15000.0 gridtype=2 # Note SURFER type = 1, GEOSOFT type = 2! gridfile=GravElev.grd rmaxgrid=2000.0 # Must be specified in meters (not km) density=2.67 # In grams/cc # fileformat: Flag indicating the order of variables to be # read from the gravity data input file, as well # as the aux elevation file. The values are # interpreted as follows: # # 0 = StationID,x,y,elevation,obs gravity # 1 = StationID,y,x,elevation,obs gravity # 2 = x,y,StationID,elevation,obs gravity # 3 = y,x,StationID,elevation,obs gravity # 4 = x,y,elevation,obs gravity # 5 = y,x,elevation,obs gravity # 6 = x,y,elevation # 7 = y,x,elevation fileformat=6 elevunits=0 # 0 ==> feet; otherwise, meters
RasterTC version 1.30[beta], Copyright 1998-2000, Geophysical Software.
Today is Tue Aug 8 12:43:09 2000
List of input and output file names.
====================================
Parameter File Name......... ParameterFile.dat
Gravity File Name........... TestData.dat
Aux Elev File Name.......... [no aux elev data provided]
Listing File Name........... RasterTC4.lst
Output File Name............ RasterTC4.out
Parameters controlling terrain correction calculation.
======================================================
Minimum radius for TC calculation ............. 10.0.
Intermediate radius for TC calculation......... 300.0.
Angular increment for integration.............. 6 degrees.
Elevation units flag........................... 0 [0 ==> feet, otherwise, meters].
Elevation bias (added to grid elevevations).... 0.0 m.
Terrain density (assumed constant) ............ 2.670 grams/cc.
Surface tension factor (between 0 and 100)..... 0.0
Elevation grid format flag .................... 2.
Terrain grids will be saved for each station location.
List of Grid File(s) provided.
==============================
Rmax (m) GridFile Name
2000.0 GravElev.grd
The above grid(s) are assumed to be in Geosoft Version 2 [16-bit] format.
** Starting to read the gravity data file **
** Finished reading gravity data file; 5 stations read **
5 gravity station locations read from TestData.dat.
Count StationID Easting(m) Northing(m) Elev(m) Elev(ft) ObsGravity
1 1 195000.0 99000.0 192.38 631.17 0.000
2 2 195000.0 99100.0 184.61 605.66 0.000
3 3 195000.0 99200.0 180.24 591.33 0.000
4 4 195000.0 99300.0 172.69 566.56 0.000
5 5 195000.0 99400.0 175.20 574.79 0.000
** Geosoft Grid Parameters **
===============================
Geosoft grid name: GravElev.grd
No. of elements per vector: 851.
No. of vectors per grid: 891.
Grid data element size: 2 [must be 2].
Grid orientation flag: -1 [must be 1 or -1].
Grid increment between vector elements: 10.00.
Grid increment between vectors : 10.00.
Grid origin (x0,y0): (193000.00,97000.00).
Elevations for station # 1 (station ID 1).
Interpolated Elevation at Station location:... 191.89
Actual Elevation at Station location: ........ 192.38
Difference: .................................. -0.49
Note: Elevation grid saved for station 1.
Elevations for station # 2 (station ID 2).
Interpolated Elevation at Station location:... 185.01
Actual Elevation at Station location: ........ 184.61
Difference: .................................. 0.41
Note: Elevation grid saved for station 2.
Elevations for station # 3 (station ID 3).
Interpolated Elevation at Station location:... 179.32
Actual Elevation at Station location: ........ 180.24
Difference: .................................. -0.92
Note: Elevation grid saved for station 3.
Elevations for station # 4 (station ID 4).
Interpolated Elevation at Station location:... 173.02
Actual Elevation at Station location: ........ 172.69
Difference: .................................. 0.33
Note: Elevation grid saved for station 4.
Elevations for station # 5 (station ID 5).
Interpolated Elevation at Station location:... 175.20
Actual Elevation at Station location: ........ 175.20
Difference: .................................. 0.01
Note: Elevation grid saved for station 5.
Results of RasterTC (version 1.30[beta]) Terrain Correction Calculation. Today is Tue Aug 8 12:43:09 2000
Corrections calculated from a min radius of 10.0 m to a max radius of 2000.0 m.
An intermediate radius of 300.0 m was used (numerical integration between min and intermediate radius).
All terrain corrections below are in milliGals, calculated for a terrain density of 2.670 grams/cc.
Count StationID Easting Northing Elev, m Elev, ft Int Elev, m Elev Diff ObsGravity TC-Near QF-Inner N-Evals Est.Error TC-Far QF-Outer TC-Total
1 1 195000.0 99000.0 192.38 631.17 191.89 0.49 0.000 0.097 1 1980 2.807e-06 0.069 0 0.166
2 2 195000.0 99100.0 184.61 605.66 185.01 -0.41 0.000 0.097 0 1980 2.250e-06 0.076 0 0.173
3 3 195000.0 99200.0 180.24 591.33 179.32 0.92 0.000 0.092 0 1980 1.375e-06 0.080 0 0.172
4 4 195000.0 99300.0 172.69 566.56 173.02 -0.33 0.000 0.125 0 1980 4.272e-07 0.095 0 0.219
5 5 195000.0 99400.0 175.20 574.79 175.20 -0.01 0.000 0.132 0 1980 2.216e-07 0.076 0 0.208
#Results of RasterTC (version 1.30[beta]) Terrain Correction Calculation. Today is Tue Aug 8 12:43:09 2000
#Corrections calculated from a min radius of 10.0 m to a max radius of 2000.0 m.
#An intermediate radius of 300.0 m was used (numerical integration between min and intermediate radius).
#All terrain corrections below are in milliGals, calculated for a terrain density of 2.670 grams/cc.
#Count StationID Easting Northing Elev, m Elev, ft Int Elev, m Elev Diff ObsGravity TC-Near QF-Inner N-Evals Est.Error TC-Far QF-Outer TC-Total
1 1 195000.0 99000.0 192.38 631.17 191.89 0.49 0.000 0.097 1 1980 2.807e-06 0.069 0 0.166
2 2 195000.0 99100.0 184.61 605.66 185.01 -0.41 0.000 0.097 0 1980 2.250e-06 0.076 0 0.173
3 3 195000.0 99200.0 180.24 591.33 179.32 0.92 0.000 0.092 0 1980 1.375e-06 0.080 0 0.172
4 4 195000.0 99300.0 172.69 566.56 173.02 -0.33 0.000 0.125 0 1980 4.272e-07 0.095 0 0.219
5 5 195000.0 99400.0 175.20 574.79 175.20 -0.01 0.000 0.132 0 1980 2.216e-07 0.076 0 0.208