Parallel Implementation of 'ETERNA 3.40' for Prediction and
Analysis of Earth Tides
This is a port of 'Fortran ETERNA 3.4'
< http://igets.u-strasbg.fr/soft_and_tool.php> by H.G. Wenzel
for calculating synthetic Earth tides using the
Hartmann and Wenzel (1994) or
Kudryavtsev (2004) tidal catalogs.