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R/Sir Can you please guide me or atleast provide one sample dataset where the scenario is something like this: channel1: 2500x2500 channel2:5000x5000 And coordinate variables are something like this: lat:2500x2500 lon:2500x2500 And for every 2 pixels of channel2, there is one value of lat/lon. I had earlier put this query on netcdf-java mailing list. They directed me to put in to cf mailing list. They also provided a link: http://newsroom.gsfc.nasa.gov/sdptoolkit/docs/HDF-EOS5_UG.pdf which address such types of datasets. These are pretty much common for POES satellite data. I have heard that in netcdf, we can create shared dimensions for such cases. And I also came across that we can create an HDF-5 file using NetCDF which is sort of a kludge to handle such cases. In the link state above, I saw there is a concept of dimension map for handling such cases. But are there any conventions for such datasets in CF which are not format dependent? Is there a format independent manner in which we can handle these types of issues? I generally write my products in hdf-4 and hdf-5 using NCSA libraries. http://www.hdfgroup.org/HDF5/ http://www.hdfgroup.org/products/hdf4/ regards Ghansham
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