[gradsusr] regrid problem

[Roberto Mera]

Hi. I'm trying to regrid two files to a common grid. The two files have 
different resolutions and projections. Here is the detail for the files:

file 1 (model)
   Type = Gridded
   Xsize = 428  Ysize = 322  Zsize = 1  Tsize = 1198  Esize = 1
   Number of Variables = 1
      px1  1  t,z,y,x  px1
X is varying   Lon = -140.885 to -94.7226   X = 1 to 428
Y is varying   Lat = 22.4263 to 57.129   Y = 1 to 322
Z is fixed     Lev = 1  Z = 1
T is fixed     Time = 00Z01JAN1961  T = 1
E is fixed     Ens = 1  E = 1

file 2 (NARR)

   Type = Gridded
   Xsize = 107  Ysize = 80  Zsize = 1  Tsize = 384  Esize = 1
   Number of Variables = 1
      pmax1  1  t,z,y,x  pmax1
X is varying   Lon = -140.885 to -94.7226   X = -1081.74 to -943.241
Y is varying   Lat = 22.4263 to 57.129   Y = -15.7149 to 88.4036
Z is fixed     Lev = 1  Z = 2
T is fixed     Time = 00Z01JAN1961  T = -215
E is fixed     Ens = 1  E = 1


I would like to regrid to 25 km or 1/3 degree so I can calculate 
anomalies between the two.

thanks

Robert