Re: [ferret_users] regridding lat-long

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

Hi Sarah,
You need to do a regridding operation:

  LET/UNITS="`tempsurf,RETURN=units`"  tsurf = tempsurf[gxy=sst[d=1]]

This command defines a new variable tsurf, which is tempsurf regridded 
to the x and y grid of sst[d=1], and keeping the units of tempsurf.  The 
regridding operation will be linear interpolation by default, or you can 
choose another regridding transformation.  The time dimension will not 
be changed.

Ansley

Aisling Dolan wrote:
> Hi,
>
> I am trying to convert the grid of TEMPSURF to that of SST so instead of i=1:96,j=1:73 it is i=1:360,j=1:180, or vice versa so that they have the same grid.
>
> I have tried creating a new grid, which seems to work, but doesn't have any data in it(T)
>
> Is there an easy way of doing this?
>
> yes? show grid SST[d=1]
>     GRID GQD2
>  name       axis              # pts   start                end
>  LON       LONGITUDE          360mr   179.5W(-179.5)       179.5E
>  LAT       LATITUDE           180 r   89.5S                89.5N
>  normal    Z
>  TIME      TIME              1675 i   01-JAN-1870 00:00    01-JUL-2009 00:00
> yes? show grid TEMPSURF
>     GRID GED2
>  name       axis              # pts   start                end
>  LONGITUDE LONGITUDE           96mr   0E                   3.75W
>  LATITUDE  LATITUDE            73 r   90S                  90N
>  SURFACE   Z (level)            1 r   0                    0
>  T         T                 2412 r   1                    2412
>
> Many Thanks,
> Sarah
> Univ. Leeds
>
>
>
>