[CF-metadata] new standard names for ECHAM5/CLM/ERA

Roy Lowry rkl at bodc.ac.uk
Thu Mar 13 09:01:43 MDT 2008


Hi John,

The thinking was using 'water_body' as an adjective specifying the type of 'water'.  We could equally well have 'ground_water', 'cloud_water','rain_water' and so on. It was not to specify different types of temperature within the water body.

Cheers, Roy. 

>>> John Graybeal <graybeal at mbari.org> 03/13/08 2:43 PM >>>
I wasn't sure why the term becomes 'water_body_water_temperature' and not just 'water_body_temperature'.

The analogous term sea_water_temperature seems to be redundant as to the medium, a 'sea' always being water. I assumed this just developed from common usage, people just called it 'sea water' (distinguishes from sea salt, sea life, but in this context 'sea_temperature' would have carried the semantic content) and therefore so did CF.

Are we running into an issue because these terms are being used both for the medium, and for a position description (in an X, Y location that is over/in/under a sea)?  So you might have 'water_body_air_temperature'?

John



At 10:34 AM +0100 3/13/08, Heinke Hoeck wrote:
> > Maybe the solution to our problem with "sea" is to use the rather long, but
>> explicit, "sea/lake/river" as a replacement for "sea" is standard names.
>>  
>We would prefere Roy's proposal (25.2) to say water_body. In the
>standard name description this could be explained:
>water_body means sea, lake and river.

At 9:52 AM +0000 3/13/08, Jonathan Gregory wrote:
>I feel that your explicit description is clearer; water_body is less obvious
>to me. For instance, to replace the current standard_name
>  sea_water_temperature
>the choice is between
>  lake/river/sea_water_temperature    (I put them in alphabetical order)
>or
>  water_body_water_temperature
>The former appears clearer to me, and is only slightly longer. I wonder what
>other people think. Of course, there is also the option (assumed implicitly
>up to now) to define "sea" to mean lake/river/sea, but I think that general
>opinion is less happy with that.

-- 
----------
John Graybeal   <mailto:graybeal at mbari.org>  -- 831-775-1956
Monterey Bay Aquarium Research Institute
Marine Metadata Initiative: http://marinemetadata.org   ||  Shore Side Data System: http://www.mbari.org/ssds
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