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Tidal Analysis and Prediction Software

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Analysis

Prediction

Education

Analysis

For analysts of sea level data, there are at least three software packages available for tidal analysis and prediction and data quality control:

• The POL TASK-2000 Package. An online version is available from the UK National Tidal and Sea Level Facility and a modified Windows version, along with quality control tools, is available from Israel Oceanographic & Limnological Research. Click on the link for more information or email psmsl@pol.ac.uk for further advice.
• The University of Hawaii (Pat Caldwell) Package. This is probably the most used package around the world and runs on DOS computers. Email caldwell@kapau.soest.hawaii.edu for information.

The POL and Australian packages contain tidal analysis software (Doodson-type) which originated from POL, whereas the tidal analysis part of the Hawaii package is that of Michael Foreman from the Institute of Ocean Sciences in Canada. There are some subtle differences in the definitions of harmonic constants which the user should be aware of, which are described in the TASK-2000 documentation.

The Foreman tidal analysis software is available separately, while there is also a Matlab version available from Rich Pawlowicz.

Predictions

For UK users, tidal predictions can be most easily obtained through the POLTIPS Package which is available through the web pages of the POL Applications Group.

The UK Hydrographic Office also provides a package called TotalTide (described modestly as "The World's Most Comprehensive Tidal Prediction Programme") which provides tidal height and tidal stream predictions worldwide. Click on Products at their website.

For French-speakers, tidal predictions can be obtained from SHOM.

Education

• http://www.elsevier.com:80/homepage/sad/mmo/tsp.htm

This web page contains the Tidal Synthesis and Prediction Package which provides a graphical means to examine the structure of tidal signals e.g. to see which constituents are relatively more important than others. Email r-nunes-vaz@adfa.oz.au for more information.

• http://www.astro.wisc.edu/~dolan/java/MoonPhase.html

This web page shows shows Moon phases in a simple way which may be useful for the classroom.