open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi,

I'm using TELEMAC2D v8p2 to run the Okada example but in a specific area on the Pacific Ocean.
I've created a new selafin based on the bathymetry of the area and a border condition file using the 444 conditions. Also, I only modified the epicentre coordinates in the *.cas file because I just want to replicate the same example but in another zone.
However, when I run the model nothing happened. I believe that my problem is related to the coordinate system but I couldn't find a solution so if someone can help me I appreciate it.
I attached all the files that I'm using.

Thanks in advance,

Tomas

Hello Tomas,

In the okada example, the coordinates of the mesh are written in Mercator projection whereas in your geometry file, the coordinates are longitude/latitude.

You should rather use the option SPATIAL PROJECTION TYPE = 3.

Hope this helps,

Chi-Tuan

Hi Chi-Tuan,
Thanks for your help, I changed the projection and now is working

Cheers

Tomas

Hi,

I have another question.
Now I'm trying to run a similar simulation than before but this time adding the INITIAL CONDITION:'TPXO SATELLITE ALTIMETRY'. For this reason, I added TIDE CONDITIONS using the TPXO8 database (hf.k1_tpxo8_atlas_30c_v1.out and uv.k1_tpxo8_atlas_30c_v1.out). However, I have an error that can't solve. Also tried with TPXO9 and nothing changed.
I attached the geometry, border conditions and *.cas files. The TPXO data are too heavy to attach to them.
If someone could help me, I appreciate it.
Thanks in advance.

Tomas

Hello Tomas,

Do not forget one rule of syntax for steering file (written in the TELEMAC-2D user manual e.g.): "Each line is limited to 72 characters".

Hope this helps,

Chi-Tuan

Hi,

It's me again with a new question related to the same topic.
I'm trying to understand the *.cas file of the Okada example and I don't understand well the terms LATITUDE OF ORIGIN POINT = 48 and LONGITUDE OF ORIGIN POINT = 0. The manual says that define the origin point for the initial condition but I don't get well what does it means in the model.
I located the tsunami epicentre in the southern hemisphere, so in that case, should I modify the LATITUDE OF ORIGIN POINT and LONGITUDE OF ORIGIN POINT?
I attach the files that I'm using.
Thanks in advance
Cheers.

Hello again,

I e-mailed the person who should know this feature the best, but I have not got any answer yet. I let you know when I have more information.

Chi-Tuan

Hello. Sorry for the delay, but I overlooked Chi-Tuan's email until now.
You may have moved onto other things by now, but here's what I think.

The keywords LATIUDE OF ORIGIN POINT and LONGITUDE OF ORIGIN POINT tells Telemac how to define the Spherical Coordinates. These keywords are not for the Okada definition.

0,0 in the Spherical Coordinates is at the Latitude and Longitude given by the keywords. Usually you would choose a location within your model. In your case, you could choose Latitude = -30, Longitude = -72.

Michael