I think the data is not completely downloaded, but it is also good to check your Netcdf installation has configured with netcdf4 support as Graziano mentioned.

On Mon, 22 May 2023, 15:34 Akinyoola Julius, <omoakinyoola@gmail.com> wrote:
ncdump  -h GMTED_DEM_30s.nc
the output :
ncdump: GMTED_DEM_30s.nc: NetCDF: Unknown file format

I used the link to download the data
wget http://clima-dods.ictp.it/regcm4/SURFACE/GMTED_DEM_30s.nc
the download was 100% 

I really need your comments sir

thank you

Julius Akinyoola



On Mon, May 22, 2023 at 8:38 AM Tamirat Bekele <atomictamirat@gmail.com> wrote:
Could you able to open the file using ncdump?

ncdump -h GMTED_DEM_30s.nc

what is the output from this command?

On May 22 2023, at 12:35 am, Akinyoola Julius <omoakinyoola@gmail.com> wrote:
Thank you so much for the tip 
I redownloaded the GMTED_DEM_30s.nc dataset 
but the same error occurred

How do solve this problem

thank you
Julius  



On Sun, May 21, 2023 at 11:00 AM <regcnet-request@lists.ictp.it> wrote:


Today's Topics:

   1. (no subject) (Akinyoola Julius)
   2. Re: (no subject) (Tamirat Bekele)


----------------------------------------------------------------------

From: Akinyoola Julius <omoakinyoola@gmail.com>
Subject: [RegCNET] (no subject)

Dear all,
I have this bug while trying to test RegCM4.6.0
Opening
/mnt/lustre/users/jakinyoola/regcm/run/REGCM_GLOBEDAT/SURFACE/GMTED_DEM_30s.nc
 NetCDF: Unknown file format

 mod_rdldtr.F90 :      141:NetCDF Error:          -51

what do I need to do correctly

Julius
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From: Tamirat Bekele <atomictamirat@gmail.com>
Subject: Re: [RegCNET] (no subject)

Dear Julius,

Check the GMTED_DEM_30s.nc is completely downloaded.

best regards,


On Sun, 21 May 2023, 09:05 Akinyoola Julius, <omoakinyoola@gmail.com> wrote:

> Dear all,
> I have this bug while trying to test RegCM4.6.0
> Opening
> /mnt/lustre/users/jakinyoola/regcm/run/REGCM_GLOBEDAT/SURFACE/GMTED_DEM_30s.nc
>  NetCDF: Unknown file format
>
>  mod_rdldtr.F90 :      141:NetCDF Error:          -51
>
> what do I need to do correctly
>
> Julius
>
> _______________________________________________
> RegCNET mailing list
>
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