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[netCDF #EXY-306229]: Transforming netCDF 1 D array into 2D array

Hello Ashwin,

You should be able to write your 2d data to the original 1d data arrays using 
`nf_put_vara_real` or `nf_90_put_vara_real` by using the appropriate 'start' 
and 'count' array values.  In regards to reading multiple 1-d arrays into a 
single 2-d array, I don't believe that you can.

I hope this helps,

-Ward


> Hello,
> 
> 
> I am using code similar to this -
> https://github.com/Unidata/netcdf-fortran/blob/master/examples/F90/pres_temp_4D_rd.f90
> to read in latitude and longitude from a netCDF file
> 
> call check( nf_inq_varid(ncid, LAT_NAME, lat_varid) )
> call check( nf_inq_varid(ncid, LON_NAME, lon_varid) )
> 
> ! Read the latitude and longitude data.
> 
> call check( nf_get_var(ncid, lat_varid, lats) )
> call check( nf_get_var(ncid, lon_varid, lons) )
> 
> Both lats and lons are 1-Dimensional fortran arrays.
> 
> My initial data set is in geographical coordinates and I need to convert
> this into a rotated lat lon grid and I use the code in this URL
> https://github.com/thiasB/unrotMe/blob/master/geo2rot.f90
> 
> The way this works is the following For each geographical latitude and
> longitude I get a rotated latitude. Ditto for rotated longitude.
> 
> Mathematically
> 
> f(latitude_geo,longitude_geo) = latitude_rot
> f(latitude_geo,longitude_geo) = longitude_rot
> 
> So the rotated lat and lon arrays are two dimensional arrays. I want to be
> able to write the rotated lat and lon arrays back to the original netCDF
> file using nf_put_vara_real or nf_90_put_vara_real(f77 or f90 does not
> matter).
> 
> How can I do this since the original lat and lon arrays are 1-D arrays ? Is
> it possible to read the original 1-d arrays as 2-D arrays ?
> 
> 
> Regards,
> 
> Ashwin.
> 
> 


Ticket Details
===================
Ticket ID: EXY-306229
Department: Support netCDF
Priority: Normal
Status: Closed
===================
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