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Harmonic Boundary Series

Harmonic Boundary Series

Owned by Former user (Deleted)
Last updated: 27 Feb, 2025 by Kester Scandrett
2 min read

The table below is an example of harmonic constituents for Trakhuc estuary.

 

Name

Speed(deg/hr)

Amplitude (m)

Phase (s)

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

 

 

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