Re: [ferret_users] Regird tripolar grid

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi,
Ferret needs special handling for these grids. Grids like the tripolar 
grid are called curvilinear grids in the Ferret documentation. So check 
under "curvilinear" or "regridding, curvilienar" in the documentation 
index for the CURV_TO_RECT and CURV_TO_RECT_MAP function.

These functions are correct but slow. We have some newer ones on the 
horizon, using methods and code from the Earth System Modeling Framework.

Ansley

On 3/6/2013 1:34 PM, Boyin Huang - NOAA Federal wrote:
> Hi Ferreters,
> Can we regrid tripolar grid data from GFDL MOM model outputs (NetCDF 
> format) to regular 2x2 grid using ferret?
> I used the following script that failed in the Arctic region
> use tos_day_GFDL-ESM2G_historical_r1i1p1_18610101-18651231.nc
> SET MEMORY/SIZE=320
> define axis/x=0e: 358e:2/unit=degree xlon
> define axis/y=88S:88N: 2/unit=degree ylat
> define grid/x=xlon/y=ylat mygrid
> list/file="tos.dat"/format=stream/L=1:1825/clobber tos[g=mygrid]
>
> Any suggestions are welcomed.
> Thanks
>
> --
> Boyin Huang
> Ingest and Analysis Branch
> Global Climate Application Division
> NCDC/NOAA, Room-514
> Phone 828-271-4851
> Fax 828-271-4022, 828-271-4246