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TOPIC: problem with tides - velocity and water depth

problem with tides - velocity and water depth 8 years 8 months ago #19951

  • huyquangtran
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Hi Tuan,

I have looked in these files. But I recognise that my model is not located in the area covers by JMJ database.

If my model is in Australia, which database do you suggest?

Best Regards

Huy
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problem with tides - velocity and water depth 8 years 8 months ago #19953

  • c.coulet
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Hi
You should use TPXO

Regards
Christophe
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problem with tides - velocity and water depth 8 years 5 months ago #21792

  • ayoub
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Hello,
I'am using The coordinate in geographic coordinate system for my bathymetry extracting from Marine Geoscience Data System (NOAA).
And i speciefied in my cas file that i used this coordinates by
COORDONNEES SPHERIQUES=OUI
TYPE DE PROJECTION SPATIALE =3
So telemac by default convert the coordinate in cartesian with projection with UTM or LAMBERT ???? ( because I use the TPXO file for tides that is in UTM )
Thank you in advance
Regards
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problem with tides - velocity and water depth 8 years 5 months ago #21801

  • pham
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Hello,

If you want to use COORDONNEES SPHERIQUES = OUI (SPHERICAL COORDINATES = YES), you have to use either Mercator projection (not UTM!) or latitude/longitude for the coordinates of your GEOMETRY FILE. Then, when modelling tide with TELEMAC and TPXO-like solutions, you have to fill in the keyword GEOGRAPHIC SYSTEM with 1 or 5 (see the reference or manual, or the dictionary) otherwise the converter does not know with which geographic system the geometry file was built.

Hope this helps,

Chi-Tuan
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problem with tides - velocity and water depth 7 years 1 month ago #27879

  • zhao-geo
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Thank you for your sharing!
I know that Delft dashboard is a good way to make boundary condition. However, when I use the generated bca file for my modelling I found the result is not satisfied comparing modelling water level with measured water level.I guess it may be related to the boundary. I am wondering when I set start time and stop time to the specific time my model focused,does that mean I got the tidal constituents my model focused or it's the data of the GMT+0 zone?
Again deliver my thanks to your generous help!
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