PyGTide is a Python class that wraps around ETERNA PREDICT 3.4 which was compiled from Fortran into a Python DLL using f2py. The original ETERNA PREDICT 3.3 was written by the late Prof. H.-G. Wenzel (Wenzel, 1996) in a mix of Fortran 77 and 90. This was updated by Kudryavtsev (2004) to include the latest tidal catalogue. The Fortran code for ETERNA PREDICT can be downloaded from the International Geodynamics and Earth Tide Service (IGETS).
A user guide is available as PDF download.
Instructions:
- Download and install Anaconda3 for Python 3.5+ on Windows 7/10 or Ubuntu (64bit)
- Use the Anaconda Navigator to ensure that the packages libpython (as a minimum v2.1) and mingw (as a minimum v4.7) are installed. You will also need the following standard libraries: numpy, pandas and datetime.
- Download PyGTide, unzip into a local directory and run test_pygtide_*.py
Attention:
Please only use the data files that are provided in the commdat subfolder in this repository and avoid using files from other sources such as IGETS. This is because the code was changed to avoid interpolating leap seconds from the year 1972 onwards.
If you use PyGTide, please cite the work as:
Rau, Gabriel C. (2018) hydrogeoscience/pygtide: PyGTide v0.2 (Version v0.2). Zenodo. http://doi.org/10.5281/zenodo.1346664.
- Hartmann, T., and H.-G. Wenzel (1995), The HW95 tidal potential catalogue, Geophysical Research Letters, 22(24), 3553–3556, https://doi.org/10.1029/95GL03324.
- Kudryavtsev, S. M. (2004), Improved harmonic development of the Earth tide-generating potential, Journal of Geodesy, 17(12), 829-838, https://doi.org/10.1007/s00190-003-0361-2.
- Wenzel, H.-G. (1996), The nanogal software: Earth tide data processing package ETERNA 3.30, Bulletin d’Informations des Marées Terrestres, 124, 9425–9439.
- McMillan, T. C., and Rau, G. C., and Timms, W. A., and Andersen, M. S. (2019), Utilizing the impact of Earth and atmospheric tides on groundwater systems: A review reveals the future potential, Reviews of Geophysics, https://dx.doi.org/10.1029/2018RG000630.
PyGTide is released by Gabriel C. Rau under the Mozilla Public License 2.0