[MITgcm-support] Curvilinear grid

[Sergio Jaramillo]

Dr Adcroft,

I was reading your answer to Patrick Heimbach, and I hope you can give 
me some advise. I am using the model with a cylindrical grid that I 
generated based on what is said in GRID.h and in the documentation. I 
realized that the model assumed I was on a cube grid for example when is 
making the coriolis parameter to vary in the domain. I changed this so 
my coriolis was constant in the domain (in ini_params.F), and turned off 
the metric terms. I also use the invariant form of the momentum 
equations. However my runs using this are not completely satisfactory. 
And I was wondering where else does the model assume that I am on a cube 
grid?

Thanks,

Sergio Jaramillo
UBC

>Quoting Alistair Adcroft <adcroft at MIT.EDU>:
>
>  
>
>>Yes it is quite possible. The only thing the model does wrong is that
>>it assumes we're on a cube grid when reading the curvilinear grid data 
>>- I have fixed this in my own version but need to check/rectify it 
>>with the latest cube stuff.
>>
>>The grid generation needs to give point-to-point distances and surface
>>areas for the four grids of model variables (T,U,V,Zeta) as defined in 
>>GRID.h .
>>
>>A.
>>--
>>Dr Alistair Adcroft            http://www.mit.edu/~adcroft
>>MIT Climate Modeling Initiative        tel: (617) 253-5938
>>EAPS 54-1523,  77 Massachusetts Ave,  Cambridge,  MA,  USA
>>
>>-----Original Message-----
>>From: mitgcm-support-bounces at mitgcm.org
>>[mailto:mitgcm-support-bounces at mitgcm.org] On Behalf Of Patrick 
>>Heimbach
>>Sent: Monday, April 26, 2004 6:52 PM
>>To: adcroft at MIT.EDU
>>Cc: mitgcm-support at mitgcm.org
>>Subject: [MITgcm-support] stretched grid
>>
>>
>>Hi Alistair,
>>
>>is it possible to run the model on a stretched
>>orthogonal grid?
>>
>>I reckon, it should be (fairly easy) as long as it
>>is orthogonal, right?
>>All that needs to be done should be to generate
>>correct face cells that are then read by the model.
>>Is there any documentation of what input the model needs
>>(and which secret flags need to be set)?
>>
>>Thanks
>>-Patrick
>>
>>_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
>>Patrick Heimbach       Massachusetts Institute of Technology
>>FON: +1/617/253-5259                      EAPS, Room 54-1518
>>FAX: +1/617/253-4464                 77 Massachusetts Avenue
>>mailto:heimbach at mit.edu                   Cambridge MA 02139
>>http://www.mit.edu/~heimbach/                         U.S.A.
>>
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>>    
>>
>
>
>_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
>Patrick Heimbach       Massachusetts Institute of Technology
>FON: +1/617/253-5259                      EAPS, Room 54-1518
>FAX: +1/617/253-4464                 77 Massachusetts Avenue
>mailto:heimbach at mit.edu                   Cambridge MA 02139
>http://www.mit.edu/~heimbach/                         U.S.A.
>
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>End of MITgcm-support Digest, Vol 10, Issue 25
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