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About the warning in the .dia file from output regarding grid file.

Niraj Bal Tamang, modified 3 Years ago.

About the warning in the .dia file from output regarding grid file.

Advanced Augur Posts: 34 Join Date: 4/26/21 Recent Posts
I was going through the diagnostics file of my model output and saw this Warning saying "Could not read net cells from NetCDF file 'gridfile.nc' (is not critical). Then later I saw another INFO: saying 'setbeadlevelfromextfile:Using bedlevel as specified in net file'. I was curious to know what this means. Is it a thing to consider or just one of the processing steps which can be ignored. I created the grid file and merged that with the bedlevel in GUI to get a combined grid file. The model is working fine but just wanted to be clear on these diagnostic messages. Thank you
Victor Chavarrias, modified 3 Years ago.

RE: About the warning in the .dia file from output regarding grid file.

Famous Fortune teller Posts: 97 Join Date: 4/24/20 Recent Posts
Hi, 

I am copy-pasting the answer from Arthur van Dam, expert in these matters. 

"Could not read net cells from NetCDF file 'gridfile.nc' (is not critical).”

Some of our older grid files only contained the grid points and edges, and not the grid cell-to-vertex administration, so dflowfm then automatically determines all of the grid cells. This is why it not critical at all.

If the grid cell administration IS in the file, it is simply read in directly.

“setbedlevelfromextfile: Using bedlevel as specified in net-file.” 

This is not really a useful message: IF the _net.nc file contains bed levels, they will be used. If the _net.nc file does not contain bed levels, these may also come from the inifield file, or old ext file, but still the same message is printed.