TELEMAC-MASCARET Forum: TIDAL MODEL Version 6.1 (1/1)

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TOPIC: TIDAL MODEL Version 6.1

TIDAL MODEL Version 6.1 13 years 1 month ago #2588

FGN	Hi, In the new features of Telemac 6.1, you talk about a test case modele-de-maree and a file bdd.jmj, please where can we find this two elements? Are the explanations of this new feature (tidal model) available? Thank you!
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Re: TIDAL MODEL Version 6.1 13 years 1 month ago #2623

jmhervouet	This question has been treated directly with FGN. The example of tidal model should now be in the set oftest cases. JMH
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Re: TIDAL MODEL Version 6.1 13 years 4 weeks ago #2908

nhuybrec OFFLINE Fresh Boarder Posts: 11	Hi, I would have the same question as FGN. Where can we find both files? Best regards
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Re: TIDAL MODEL Version 6.1 12 years 4 months ago #4893

fbatif	Hi, I would be interested in this test case also, i didn't find it in the set of test case available in Downloads/trainings/telemac2dv6p0.tar. Is there a telemac2dv6p1.tar somewhere? Thanks
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Re: TIDAL MODEL Version 6.1 12 years 4 months ago #4908

pham
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Hello,

The test case for tide did not exist in version 6.0
In www.opentelemac.org/index.php?option=com...y&catid=29&Itemid=57 at the bottom of the page, you can have the archive of validation cases (big file of 270 Mo as it is said), but the test case for tide did not exist either.

In www.opentelemac.org/index.php?option=com...=4833&Itemid=89#4851 you can get one test case in two parts.

Hope this helps,

Chi-Tuan

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Re: TIDAL MODEL Version 6.1 12 years 4 months ago #4922

fbatif	It helps me a lot, thank you!
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Re: TIDAL MODEL Version 6.1 12 years 2 months ago #5618

BJ	Hi! I'm looking for some information about this tidal model. I'm trying to make it running on my own, but some questions remain about the time used in this model: Which time zone does the model use? And more important, can this model be used to "predict" a tide in 2012 (by example), since the file bdd_jmj date from 1992. Benoît-Joseph
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TIDAL MODEL Version 6.1 12 years 2 months ago #5620

pham
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Hi Benoît-Joseph,

Time zone used for this model is UTC.
The bdd_jmj contains harmonic constants which only depend on the coordinates of the nodes, not time. Thus you can "predict" tides in 2012, because, in TELEMAC, the tidal signal is reconstitued from these harmonic constants, the periods of harmonic constituents, nodal factors (with a cosinus functions) and time.

For your information, the new version 6.2 enables to deal with two other sets of databases of tidal constants (from OSU and LEGOS). bdd_jmj only provides 4 harmonic constituents, whereas the two other sets provide at least around 8 constituents. My own experience in the English Channel has shown that tide is better modelled with these last two databases (I am supposed to present a paper and a talk next TELEMAC-MASCARET User Conference in October).

Hope this helps,

Chi-Tuan

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