[CF-metadata] Proposal for standard name "snow_cover_binary_mask"

Jim Biard jim.biard at noaa.gov
Wed Sep 5 12:53:46 MDT 2012


Ute,

It is a good concept.  As best as I understand it (I'm still learning), the existing grammar for standard names doesn't allow a qualifier of this sort.  Qualifiers are not allowed to change the units of a quantity, for one thing, and a binary mask qualifier doesn't fit into any of the existing qualifier categories.  That doesn't mean one can't be developed, but the usual way this is handled is to just request a new standard name.

Grace and peace,

Jim

Jim Biard
Research Scholar
Cooperative Institute for Climate and Satellites
Remote Sensing and Applications Division
National Climatic Data Center
151 Patton Ave, Asheville, NC 28801-5001

jim.biard at noaa.gov
828-271-4900

On Sep 5, 2012, at 1:40 PM, Ute Brönner <Ute.Broenner at sintef.no> wrote:

> Hei,
> Wouldn't that feature come in handy for other grids as well where we would like to mark sth. like "exposed" or "not exposed"? So I would suggest to make it snow independent.
> 
> Regards,
> Ute
> 
> 
> Am 05.09.2012 um 18:31 schrieb "Jim Biard" <jim.biard at noaa.gov<mailto:jim.biard at noaa.gov>>:
> 
> Hi.
> 
> I'd like to propose the new standard name "snow_cover_binary_mask".  There is a NOAA snow coverage extent product that is being put into netCDF format.  The product is derived from the IMS Daily Northern Hemisphere Snow & Ice Analysis.  It is a grid in which cells are marked as snow-covered or not snow-covered.  The GCMD already has the keywords "Cryosphere > Snow/Ice > Snow Cover" and "Terrestrial Hydrosphere > Snow/Ice > Snow Cover", which are applied to the source product.
> 
> In this particular product, grid cells are marked as snow-covered when > 42% of the cell indicates the presence of snow.
> 
> I'd appreciate any thoughts or comments.
> 
> Grace and peace,
> 
> Jim
> 
> Jim Biard
> Research Scholar
> Cooperative Institute for Climate and Satellites
> Remote Sensing and Applications Division
> National Climatic Data Center
> 151 Patton Ave, Asheville, NC 28801-5001
> 
> jim.biard at noaa.gov<mailto:jim.biard at noaa.gov>
> 828-271-4900
> 
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