Harmonic Boundary Series
The table below is an example of harmonic constituents for Trakhuc estuary.
Name | Speed(deg/hr) | Amplitude (m) | Phase (s) |
|---|---|---|---|
| Q1 | 13.3987 | 0.04 | 126.073 |
| O1 | 13.943 | 0.261 | 146.432 |
| P1 | 14.9589 | 0.097 | 182.577 |
| K1 | 15.0411 | 0.293 | 185.991 |
| N2 | 28.4397 | 0.04 | 59.376 |
| M2 | 28.9841 | 0.185 | 75.861 |
| S2 | 30 | 0.072 | 114.865 |
| K2 | 30.0821 | 0.025 | 95.187 |
EE10 allows the user to add these harmonic constituents for use in the open boundary condition by following these steps:
1. In External Forcing Data, RMC on Harmonic Tides and select Add New Data Series
Figure 1. Assigning tidal boundary conditions.
2. Select Add New button to create new series
3. Enter the name in Current Series, as "Tides"
4. Select Change to add the harmonic constituents, in this case, there are 8.
Figure 2. Add new tidal boundary series.
5. Enter the name of harmonic constituents (Q1, O1,...) in the Search box and select Search and add Harmonic Constituent
6. Click Ok when all 8 harmonic constituents have been added
Figure 3. Add harmonic constituents.
7. Copy the tidal constituent values (amplitude, phase) from the above table into the form.
8. Click Plot button to see the tidal time-series plot as shown in Figure 5
9. Click OK button to finish
Figure 4. Add harmonic constituent values.
Figure 5. Tides series plot.
Assign Tidal Boundary
To assign these tides to the open boundary cells, steps are introduced in section 4.3.2 (Build a 3D Coastal Model (Level 2 Step-by-Step Guidance). However, instead of choosing tidal series for Pressure, the user selects the series for Harmonic as shown in Figure 6.
Figure 6. Assign tides boundary