Re: HDF metadata

On 11/22/2010 4:09 PM, Robert B. Schmunk wrote:
> On Nov 22, 2010, at 17:53, John Caron wrote:
>
> > then, when you enhance it, it turns it into a double by applying the 
> > scale/offset, and the non-string attributes are:
> I always use NetcdfDataset.acquireFile(String,CancelTask)
> to open datasets. Poking through the API, it looks to me
> like using this method always turns on enhancement.

NetcdfDataset.acquireDataset() uses enhanced mode by deafult, i dont think 
acquireFile() does though



> > it removes scale/offset attributes so they they dont get applied again. the 
> > missing values are converted to NaNs, and those are also removed since they 
> > dont make sense anymore now that the variables is a double.
> Has this dropping of listed attributes from the reported
> variable description always been the case, or something
> that occurred when NJ went up to version 4?
>
> It's not something I've ever noticed before, but now that
> you explain it, it sounds like the same thing that was going
> on when a fellow at GSFC wrote to me a month or so ago
> about an HDF file in which some attributes were not
> being reported.
>
> rbs

yes, always

> --
> Robert B. Schmunk, address@hidden
> NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025