Ping,
I think there is something wrong with the source grid, as the error is that the grid corners were not correct. You can see this by looking at the "PET0.RegridWeightGen.Log" file:
cat PET0.RegridWeightGen.Log
20121105 115739.811 INFO PET0 Running with ESMF Version 5.2.0rp2
20121105 115740.616 ERROR PET0 ESMF_Grid.F90:5238 ESMF_GridCreateFrmScripDistGrd Wrong argument specified - - Bad corner array in SCRIP file
20121105 115740.616 ERROR PET0 ESMF_Grid.F90:5585 ESMF_GridCreateFrmScripReg Wrong argument specified - Internal subroutine call returned Error
20121105 115810.964 INFO PET0 Running with ESMF Version 5.2.0rp2
When I try to change the interpolation method to "bilinear", it just runs forever.
BTW, it's a good idea to set:
Opt@Debug = True
when you are initially writing the regridding script, so you can get some more debug information printed out.
How was the source grid created? Is this one tile, or several tiles put together in some fashion?
If it's the latter, then this is likely the source of your problem.
--Mary
On Nov 5, 2012, at 10:03 AM, Ping Yang wrote:
> Dear NCL,
>
> I uploaded two files to ftp:
> NE_Daymet_20000214_prcp.nc
> daymet_regrid.ncl
>
> NCAR Command Language Version 6.1.0
>
> Linux 2.6.38-16-server #67-Ubuntu SMP Thu Sep 6 18:15:24 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
>
> Error: ESMF_regrid_gen_weights: 'ESMF_RegridWeightGen' was not successful.
>
> Looking forward to hearing from you.
>
> Best Regards,
>
> Ping
>
> On Mon, Nov 5, 2012 at 10:46 AM, Mary Haley <haley@ucar.edu> wrote:
> Ping,
>
> In order to help you, we have to see your full script and all your data files. Without knowing what your variables look like, we can't tell you how to correctly do the regridding.
>
> You can put your data and script(s) on our anonymous ftp. Be sure to include *all* data files and scripts needed to run your main script.
>
> Here are the anonymous ftp instructions:
>
> http://www.ncl.ucar.edu/report_bug.shtml#HowToFTP
>
> Thanks,
>
> --Mary
>
> On Nov 3, 2012, at 9:37 PM, Ping Yang wrote:
>
> > Dear NCL,
> >
> > I am still stuck at here for the joined Daymet grid.
> >
> > On Tue, Oct 30, 2012 at 6:40 PM, Dave Allured <dave.allured@noaa.gov> wrote:
> > Ping,
> >
> > Your script is using sfile->lat and sfile->lon. If this is the same
> > merged file that you showed yesterday, then sfile->lat and sfile->lon
> > will contain gaps filled with zeros rather than valid lats and lons.
> > This may or may not cause the regrid function to fail. Perhaps
> > someone familiar with that function could say whether this would work.
> > the zeros value made the ESMF regriding fail.
> >
> > The simple remedy would be to operate on a rectangular subset of the
> > merged file that does not have any coordinate gaps.
> > What is a rectangular subset? I tried to use cdo to sellonlatbox to subset but it told me the grid is a generic grid which can not be subseted.
> > The better remedy
> > would be to fill in all of the missing lats and lons, which is beyond
> > the scope of the current version of my join script.
> > I am thinking is that possible to interpolate those missing lats and lons instead of put zero value to them. Do you have some idea?
> >
> > Another solution would be to have the regrid function compute source
> > lats and lons from native grid projection parameters, rather than the
> > source 2-D coordinates. I do not know whether *any* NCL regrid
> > functions have this kind of support.
> > I hope if there is an ESMF specialist can give some advice on this.
> >
> > Thank you so much.
> >
> > Regards,
> >
> > Ping
> > _______________________________________________
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>
>
>
>
> --
> Ping Yang, Ph.D.
> CUNY Environmental Crossroads Initiative
> Marshak Science Building - Suite 925
> The City College of New York - CUNY
> 160 Convent Avenue, New York NY 10031
> Phone: 212-650-5769
> Fax: 212-650-7064
>
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Received on Mon Nov 5 15:19:00 2012
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