In the PRCI OBS V3.0, the software could not receive water depths less than 6m.
In the PRCI OBS V4.0, this restriction has been removed and users can input any water depth. However, the applied theory has not been revised is still based on linear wave theory.
Therefore, it is the users’ responsibility to ensure that ratio between the inputted wave data at the given water depth does not exhibit very nonlinear / breaking wave scenario.
The software performs a cursory check for the wave breaking limit and if the input wave is breaking, it returns an error, and the user should change the wave height and period in order to exit from the wave breaking zone.
The shallow water theory in being implemented in the software and would be included in the future releases of the software.