[ncl-talk] Regridding Moving Nest WRF outputs

[Dennis Shea]

   f = *addfile*
<https://www.ncl.ucar.edu/Document/Functions/Built-in/addfile.shtml>
("WRF.nc", "r")
   lat2d = f->xlat                         ; size = (ntim,nlat,nlon)
   lon2d = f->xlon                         ; size = (ntim,nlat,nlon)
   x     = f->X

   printVarSummary(x)
   printMinMax(x,0)

   dimx  = dimsizes(x)
   ntim  = dimx(0)

   nlat  = dimsizes(lat)
   mlon  = dimsizes(lon)

   xgrd  = new( (/ntim,nlat,mlon/), typeof(x) )

   do nt=0,ntim-1
      xgrd(nt,:,:) =
*rcm2rgrid*_Wrap(lat2d(nt,:,:),lon2d(nt,:,:),x(nt,:,:),lat,lon,0)
   end do

   printVarSummary(xgrd)
   printMinMax(xgrd,0)

=======

rcm2rgrid is slow for large grids.

If you have multiple runs (experiments) with the same configuration,
it may be advantageous to use the ESMF regridding and generate a weight
file for each time step.

Good luck





On Fri, Mar 16, 2018 at 3:58 AM, Lara Quitián Hernández <
laraquitianhernandez at gmail.com> wrote:

> Good morning,
>
> I'm trying to regrid from a WRF grid (curvilinear) to ECMWF grid
> (rectilinear). The issue is that my WRF outputs are now obtained using the
> Moving Nest configuration. Therefore, I have a new high-resolution domain
> (D02) for each time step (I attach an example of what I'm saying).
> When D02 was fixed at specific lat/lon coordinates (i.e., without using
> the Moving Nest configuration) I used the rcm2rgrid function. But I do
> not know if I can use the same function now.
>
> Thanks in advance!
>
> Regards,
> Lara.
>
> --
>
>
> *Lara Quitián Hernández, PhD Student*
> Departamento de Física de la Tierra, Astronomía y Astrofísica
> Facultad de Ciencias Físicas
> Ciudad Universitaria, Plaza Ciencias, 1
> 28040 Madrid. Spain
> Email: lquitian at ucm.es <mlunar at aemet.es>
>
>
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