- Select the geoid models you want to install from the list below and click Download and install.
| Model | Reference URL | Download Size | Download Link |
| NGA: EGM 84, 96, 2008 | http://earth-info.nga.mil/GandG/wgs84/gravitymod/wgs84_180/wgs84_180.html http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008 | 963 MB | |
| NGS: Geoid12A / Geoid12B | https://www.ngs.noaa.gov/GEOID/ | 93 MB | |
| NGS: Geoid18 | https://www.ngs.noaa.gov/GEOID/ | 29 MB |
The NGA geoid model is currently supported in TPC Desktop 2019 R1 and newer.
- TPC will install the geoid models to C:\ProgramData\Traverse PC\TPC Desktop [version]\Geoids\
The NGS Geoid12A/Geoid12B model is currently supported in TPC Desktop 2020 R0 and newer.
- TPC will install the geoid models to C:\ProgramData\Traverse PC\Geoids\[Model]\
The NGS Geoid18 model is currently supported in TPC Desktop 2020 R1 and newer.
- TPC will install the geoid models to C:\ProgramData\Traverse PC\Geoids\[Model]\