[ecco-support] Vorticity budget with ECCOv4r4

[Matthew Mazloff]

Hello

One has to first close the momentum budget. Are you able to do that?

Once the momentum budget is closed one takes the curl using this formula:
   vort3(I,J)=
     &      recip_rAz(I,J,bi,bj)*(
     &      ( vFld(I,J)*dyC(I,J,bi,bj)
     &       -vFld(I-1,J)*dyC(I-1,J,bi,bj) )
     &     -( uFld(I,J)*dxC(I,J,bi,bj)
     &       -uFld(I,J-1)*dxC(I,J-1,bi,bj) )
     &                           )
 
As this makes pxy - pyx = 0 

Here vFld would be all the terms in the y momentum budget and uFld all the terms in the x momentum budget. 

Hope this helps!

Matt

> On Jan 14, 2024, at 1:12 AM, chenguang <22320182201293 at stu.xmu.edu.cn> wrote:
> 
> Hi dear ECCO group，
> 
> I'm a graduate student from Xiamen University.  I have acquired knowledge on calculating the volume budget and geostrophic balance through the tutorials, which has been immensely beneficial to me. However, I have encountered difficulties in closing the vorticity budget. I would  appreciate it if  you can give me some suggestions on achieving vorticity budget closure with ECCOv4r4.
> 
> Thank you,
> GuangChen
> 
> 	
> chenguang
> 22320182201293 at stu.xmu.edu.cn
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