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TOPIC: tide

tide 6 years 2 months ago #29246

  • masir
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hi
who can say what This data is exactly in the text file of the tide؟؟؟
Our open border has u,v,h
but why we have 25 data in each point????
thanks alot
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tide 6 years 2 months ago #29258

  • pham
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Hello,

The file you show seems to be an HARMONIC CONSTANTS FILE used with the JMJ tidal database.
In that case, for every liquid node where you want to prescribe tide, you have 5 lines per liquid node:
- the number of the boundary node and the interpolation of the bottom elevation (in the JMJ area, North East Atlantic and English Channel mainly). The value you have seems very big,
- for the M2 wave: the harmonic constant of magnitude of water depth h, phase of water depth, the harmonic constant of magnitude of horizontal velocity U and phase of U, the harmonic constant of magnitude of horizontal velocity V and phase of V,
- for the S2 wave: 6 same values,
- for the N2 wave: 6 same values,
- for the M4 wave: 6 same values.

If you can read French, this file is described in www.opentelemac.org/index.php/component/...atlantique?Itemid=55

Anyway, you seem to model an area located in the Persian Gulf, do not you? In that case, do not use the JMJ tidal database. You should rather use the local tidal solution "Persian gulf": volkov.oce.orst.edu/tides/PerS.html or a regional atlas of the area from LEGOS lab (if you are allowed to use it).

Have you generated this file by yourself or where does it come from?

Hope this helps,

Chi-Tuan
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