Online Tidal Harmonics: This tool can be treated as a shortcut or an alternative method to generate a tidal water level series. The user must specify the simulation period beforehand so EE can generate data series for this period. To generate water level data series for model boundary cells, the user can bring up a 2DH view and then select a range of boundary cells for which water level data series will be generated (Figure 6). When the boundary cells have been selected, the user can select from the main menu Tools and the sub-menu Online Tidal Harmonics then Download for Model Boundaries (Figure 7). The download dialog will show up with the position of the selected cells populated in the List of Locations in Figure 8. The user can manage the list of the selected locations using Add, Remove and Update buttons. The phase lag of the harmonic constants is referred to as zero UTC so the user may need to change the time shift to adjust for the model local time. Once everything is ready, the user can click the Get Data button to download the harmonics and generate the data series. The generated water level data series will be populated to the Water Level group in External Forcing Data and can be used for the model boundary conditions.
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