Re: [cf-satellite] Proposal for naming convention for swath dimensions

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CF gives guidelines on constructing standard names:
  http://cf-pcmdi.llnl.gov/documents/cf-standard-names/guidelines

CF standard name table has "latitude", "longitude", "depth" & "time" as 
standard_names for specifying spatio-temporal coordinates. Why not just use 
"swath"?

Upendra


----- Original Message -----
From: Russ Rew <russ@xxxxxxxxxxxxxxxx>
Date: Friday, July 15, 2011 11:25 am
Subject: Re: [cf-satellite] Proposal for naming convention for swath    
dimensions

> > I suggested in the ESIP Federation CF-Satellite discussion 
> yesterday 
> > (July 14, 2011) that the names "line" and "sample" could be good 
> > candidates for the names of the geometrical dimensions of swath 
> data 
> > variables.  I think that these are more generic than previous 
> > suggestions, and accommodate a wider range of data acquisition 
> schemes.  
> > There can be sensors out there for which even these names are 
> > "incorrect", but the vast majority of the data is produced as a 
> raster 
> > of some sort.  This is common terminology in many other arenas 
> > (photogrammetry, for example).
> 
> Actually, the CF Conventions don't standardize any dimension or 
> variablenames, according to the beginning of section 1.3:
> 
>  No variable or dimension names are standardized by this convention.
>  Instead we follow the lead of the NUG [NetCDF Users Guide] and
>  standardize only the names of attributes and some of the values 
> taken  by those attributes.
> 
> So "standard_name" attributes for the associated coordinate variables
> may be what we need.  This also has the advantage of permitting 
> multipleline and sample dimensions and multiple associated 
> coordinate variables
> in the same file, for multiple instruments or resolutions.
> 
> The process for getting standard names approved is simpler and faster
> than writing CF Trac proposals for inclusion in the CF Conventions 
> text.
> Although "line" and "sample" would be fine for dimension and 
> coordinatevariable names, I think they would be too generic for 
> standard names,
> which have to be very descriptive.  Does anyone else familiar with the
> CF idioms and customs for standard names for coordinate variables and
> have more descriptive suggestions?
> 
> --Russ
> 
> > -- 
> > Jim Biard
> > 
> > Government Contractor, STG Inc.
> > Remote Sensing and Applications Division (RSAD)
> > National Climatic Data Center
> > 151 Patton Ave.
> > Asheville, NC 28801-5001
> > 
> > jim.biard@xxxxxxxx
> > 828-271-4900
> > 
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