[netcdf-java] Converting bad netCDF to CF-compliant

[John Caron]

Hi Matt:

There is a helper class ucar.nc2.dt.grid.NetcdfCFWriter which will write Grids to netcdf-3/CF files. To create a Grid, the correct coordinate system must be found. This is done through a CoordSysBuilder class. Its not trivial, but there are examples in ucar.nc2.dataset.conv package. Some details are at:

  http://www.unidata.ucar.edu/software/netcdf-java/tutorial/CoordSysBuilder.html

Matt Foster wrote:
> I have some badly formed netCDF that I'm trying to get to CF-compliant 
> using netcdf-Java (2.2.22).  The bad nc file has the data, lat and lon 
> points and attributes for a Lambert Conformal projection, but it has no 
> GeoX/GeoY points, and the dimensions aren't even set right.  It's really 
> a mess.
> 
> I've been working on using latLonToProj in the LambertConformal class to 
> get the lats and lons into Ys and Xs, but that's about as far as I can 
> get.  At that point I start getting confused about CoordinateSystems and 
> their relationship to NetcdfDatasets.
> 
> Can someone help this newbie get the rest of the way?
> 
> Matt
> 
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