Search found 6 matches

by geo_ytwin
Fri Dec 30, 2016 3:29 am
Forum: ROMS Discussion
Topic: Blow up problems for an Internal Tide case
Replies: 9
Views: 3239

Re: Blow up problems for an Internal Tide case

Set your ndtfast to 6 or 10, or even larger. As the 1 you set in the post, it means that the barotropic time step was 36 seconds. It is obviously too large.
by geo_ytwin
Wed Nov 13, 2013 2:48 am
Forum: ROMS Tools and Techniques
Topic: TPXO to ROMS EXPRESS (tide extraction software)
Replies: 40
Views: 22941

Re: TPXO to ROMS EXPRESS (tide extraction software)

Thanks, Ivica and Kate.
Your replay make me clear for preparing tidal forcing file.
by geo_ytwin
Fri Nov 08, 2013 3:15 am
Forum: ROMS Tools and Techniques
Topic: TPXO to ROMS EXPRESS (tide extraction software)
Replies: 40
Views: 22941

Re: TPXO to ROMS EXPRESS (tide extraction software)

Yes, Kate.
So how can I rotate the tidal u and v (for example from TPXO data) to get tidal velocities that are perpendicular to the roms grid? The roms needs tidal current ellipses as the input information for tidal currents. I am confused how to rotate the tidal current ellipses.
by geo_ytwin
Thu Nov 07, 2013 5:54 pm
Forum: ROMS Tools and Techniques
Topic: TPXO to ROMS EXPRESS (tide extraction software)
Replies: 40
Views: 22941

Re: TPXO to ROMS EXPRESS (tide extraction software)

Hi,
Is there any way to consider specific tidal u and v components for rotating rectangular grid?
by geo_ytwin
Fri Aug 02, 2013 1:19 am
Forum: ROMS Discussion
Topic: problems in ROMS tide simulation
Replies: 14
Views: 6622

Re: problems in ROMS tide simulation

Sometimes I use seagrid to generate my grid. Generally, I will directly make my grid by matlab.
Also,roms_tools downloaded from IRD is the toolbox I used.
by geo_ytwin
Thu Aug 01, 2013 1:56 am
Forum: ROMS Discussion
Topic: problems in ROMS tide simulation
Replies: 14
Views: 6622

Re: problems in ROMS tide simulation

What is the horizontal resolution and minimum water depth of your model? In my experience, increaing the hmin will also help the model integrate forward. In addition, you can try to reduce the resolution in the begining. When the model can run smoothly, then more detailed work is needed to refine th...