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How to given the open boundary tidal or flow?
this is my study area

boundary1：flow
boundary2：tidal
boundary3：tidal
boundary4：tidal

now I have the example that one tidal boundary only have one point data.
But,in my study each tidal boundary will give 10 points' tidal data. I do not know how to give the open boundary tidal or flow; and I can't this example. please tell me.

thank you, please tell me!!!