ORG.GLC:
GGMCalc is a program to compute some components of the gravity field, using Global Geopotential Models, including
- Undulation
- Heigh anomaly
- Gravity disturbance
- Classical gravity anomaly
- Molodensky gravity anomaly
Moazezi S. and Zomorrodian H. (2012) GGMCalc a software for calculation of the geoid undulation and the height anomaly using the iteration method, and classical gravity anomaly, Earth Science Informatics, 5(2), pp. 123-136. https://doi.org/10.1007/s12145-012-0102-2
gfortran and "GNU Make" should be installed on the OS. Using make command one can build ggmcalc.
One can run the program by ./ggmcalc command under src directory.
The global geopotential model (GGM) file dat/coeff.dat is used by the software. One can download GGM files from ICGEM website at http://icgem.gfz-potsdam.de/ICGEM/ and rename the coefficients file to coeff.dat.
The ellipsoid parameters file "ellipsoid.dat" is used by the software.
dat/ellpsoid.dat.GRS80contains parameters of GRS80 ellipsoid.dat/ellpsoid.dat.WGS84contains parameters of WGS84 ellipsoid. To use a particular ellipsoid, rename its file todat/ellipsoid.dat.
The dat/input.dat file contains the coordinates of the calculating points.
Descriptions of the functions and the subroutines including correspoding references can be found in the source codes.
Copyright (C) 2010-2018 Siamak Moazezi
This file is part of GGMCalc.
GGMCalc is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
GGMCalc is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with GGMCalc. If not, see http://www.gnu.org/licenses/.
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