Users want a way to understand file content before downloading the file.

Acceptance Criteria:


Provide header information like 'ncdump -h' for a NetCDF file (from a URL).
Store NetCDF header in database as a "cache".
If an error occurs (eg. the file is not NetCDF or does not exist) do not store header and throw exception.
(Determine if NetCDF based on extension .nc, .nc3, .nc4, .netcdf)
Service determines on-disk location of file.
If possible: Test with NARCCAP and CORDEX files (200MB - 12GB)

Note: Headers for SRM files that have been moved to disk is not required.