Metadata-Version: 2.4
Name: egm96
Version: 0.1.0
Summary: EGM96 geoid undulations
Keywords: egm96,geoid,undulation,geodesy,gps,wgs84,ellipsoid,elevation,altitude,mean-sea-level
Author: Jonas Ehrlich
Author-email: Jonas Ehrlich <jonas.ehrlich@xneural.ai>
License-Expression: MIT
License-File: LICENSE
Classifier: Topic :: Scientific/Engineering :: GIS
Classifier: Intended Audience :: Science/Research
Classifier: Operating System :: OS Independent
Classifier: Typing :: Typed
Requires-Dist: numpy>=2.2.6
Requires-Python: >=3.10
Project-URL: Repository, https://github.com/xneural-org/egm96
Project-URL: Issues, https://github.com/xneural-org/egm96/issues
Description-Content-Type: text/markdown

# egm96

GPS reports altitude as height above the WGS 84 reference ellipsoid, a smooth
mathematical surface that can sit tens of meters away from actual sea level.
[EGM96](https://en.wikipedia.org/wiki/Earth_Gravitational_Model), the 1996 Earth
Gravitational Model from the U.S. National Geospatial-Intelligence Agency,
describes where mean sea level lies relative to that ellipsoid. The gap between
the two is the _geoid undulation_; subtracting it from a GPS height gives an
approximate height above sea level.

This package looks up the EGM96 undulation for any coordinate.

## License

MIT (see [LICENSE](LICENSE)). EGM96 is a work of the U.S. Government (NGA, NASA,
and Ohio State University) in the public domain; the 5′ dataset is redistributed
by the MIT-licensed [GeographicLib](https://geographiclib.sourceforge.io/).
