Re: [CF-metadata] the need to store lat/lon coordinates in a CF-compliant netCDF file

2011-08-03 Thread John Caron
On 8/3/2011 8:19 AM, Jon Blower wrote: Hi all, I've been following this thread with great interest. For me it boils down to this question: - Is the datum always known by the data provider? If the answer is yes then I see no reason to omit the datum (and plenty of reasons to include it).

[CF-metadata] [FRANCE] Question about CF Convention

2011-08-03 Thread Mazurier Alain
Hi all, I am new on this mailing list and I hope my question is not so obvious My problem is with: At the adress : http://cf-pcmdi.llnl.gov/conformance/requirements-and-recommendations/1.5/ I find « 2.1 Filename Requirements: * Filename must have .nc suffix. But If I read

Re: [CF-metadata] the need to store lat/lon coordinates in a CF-compliant netCDF file

2011-08-03 Thread David Blodgett
Correction to the datum/ellipsoid explanation below. The NAD83 datum does use the GRS80 ellipsoid. The NAD27 datum uses the Clarke 1866 ellipsoid. Woops! Dave On Aug 3, 2011, at 9:07 AM, David Blodgett wrote: Dear Phil, I would have thought that if a particular piece of data analysis is

Re: [CF-metadata] CF-metadata Digest, Vol 100, Issue 2

2011-08-03 Thread Comiskey, Glenn
Bonjour Alain, Being new to the world of meteorological/oceangraphic data myself recently, I had the same problem you have when reading the various conventions available. Based upon discussions about this matter, and how others are using and interpretating the conventions, I personally have

Re: [CF-metadata] the need to store lat/lon coordinates in a CF-compliant netCDF file

2011-08-03 Thread Jon Blower
OK, so this is a use case for an unknown (as opposed to a deliberately unspecified) datum I guess? Almost certainly, but by a comparatively small number of individuals within an organisation I would guess. All the more reason to encourage people to encode it in NetCDF files! ;-) Jon

[CF-metadata] [FRANCE] Question about CF Convention

2011-08-03 Thread Comiskey, Glenn
Alain, Further to my earlier comment, and to address your question regarding file name suffix, my company makes data available via THREDDS and ERDDAP neither of which I have found has any problem using files that do not have a .nc suffix. When editing the metadata for files to be published via

Re: [CF-metadata] [FRANCE] Question about CF Convention

2011-08-03 Thread Mazurier Alain
Glenn Thanks for your comments. The nc suffix was an example, but I found other cases in the documentation. I found a lot of differences between the convention and the list of requirements and recommendations. My work is to highlight the differences between a netcdf file (bathymetric data)

Re: [CF-metadata] the need to store lat/lon coordinates in a CF-compliant netCDF file

2011-08-03 Thread Upendra . Dadi
Hi, - Original Message - From: Bentley, Philip philip.bent...@metoffice.gov.uk Date: Wednesday, August 3, 2011 11:17 am Subject: Re: [CF-metadata] the need to store lat/lon coordinates in a CF-compliant netCDF file Hi Jon, I've been following this thread with great interest. For