TPAR wave directions: correct or not on the ROMS grid angle

Facts, news, and guidance about ROMS software

Moderators: arango, robertson

Post Reply
Message
Author
User avatar
Eugen
Posts: 30
Joined: Wed Apr 06, 2016 4:36 pm
Location: University of Liege

TPAR wave directions: correct or not on the ROMS grid angle

#1 Post by Eugen » Thu Nov 15, 2018 2:09 pm

Dear ROMS users,

I have a short question.

I couple online ROMS and SWAN on the same grid. Should I correct wave directions in my TPAR boundary files on the ROMS grid angle?

To make TPAR files, I used a standard MATLAB scrip, which seemed to interpolate wave directions from the global wave product on my grid boundaries without taking into account its angle.

The angle of my ROMS grid (between XI axis and EAST) is 120 degrees.
Evgeny Ivanov

PhD Fellow,
MAST, University of Liege, Belgium

jcwarner
Posts: 798
Joined: Wed Dec 31, 2003 6:16 pm
Location: USGS, USA

Re: TPAR wave directions: correct or not on the ROMS grid an

#2 Post by jcwarner » Thu Nov 15, 2018 2:50 pm

no.
The TPAR files go to SWAN, and SWAN knows how to deal with them on a curvilinear grid.
Then Dwave comes from SWAN to ROMS, and the coupler knows how to deal with the grid.
So in summary, just put the data in the TPAR files as you would normally.
-john

User avatar
Eugen
Posts: 30
Joined: Wed Apr 06, 2016 4:36 pm
Location: University of Liege

Re: TPAR wave directions: correct or not on the ROMS grid an

#3 Post by Eugen » Thu Nov 15, 2018 2:52 pm

Thanks, John !
Evgeny Ivanov

PhD Fellow,
MAST, University of Liege, Belgium

Post Reply