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Language License PyPI Version Anaconda-Server Documentation Status codecov Binder Pangeo zenodo

Python-based tidal prediction software that reads OTIS, GOT and FES formatted tidal solutions for calculating ocean and load tides

Pole tide prediction software for calculating radial pole tide displacements



T. C. Sutterley, T. Markus, T. A. Neumann, M. R. van den Broeke, J. M. van Wessem, and S. R. M. Ligtenberg, "Antarctic ice shelf thickness change from multimission lidar mapping", The Cryosphere, 13, 1801-1817, (2019). doi:tc-13-1801-2019

L. Padman, M. R. Siegfried, H. A. Fricker, "Ocean Tide Influences on the Antarctic and Greenland Ice Sheets", Reviews of Geophysics, 56, 142-184, (2018). doi:10.1002/2016RG000546


The program homepage is:
A zip archive of the latest version is available directly at:


Matlab Tide Model Driver from Earth & Space Research is available at:
Fortran OSU Tidal Prediction Software OTPS is available at:
Incorporated into the NASA Cryosphere Altimetry Processing Toolkit at:


This package includes software developed at NASA Goddard Space Flight Center (GSFC) and the University of Washington Applied Physics Laboratory (UW-APL). It is not sponsored or maintained by the Universities Space Research Association (USRA), AVISO or NASA. The software is provided here for your convenience but with no guarantees whatsoever. It should not be used for coastal navigation or any application that may risk life or property.


This project contains work and contributions from the scientific community. The Tidal Model Driver (TMD) Matlab Toolbox was developed by Laurie Padman, Lana Erofeeva and Susan Howard. The OSU Tidal Inversion Software (OTIS) and OSU Tidal Prediction Software (OTPS) were developed by Lana Erofeeva and Gary Egbert (copyright OSU, licensed for non-commercial use). The NASA Goddard Space Flight Center (GSFC) PREdict Tidal Heights (PERTH3) software was developed by Richard Ray and Remko Scharroo.


The content of this project is licensed under the Creative Commons Attribution 4.0 Attribution license and the source code is licensed under the MIT license.