[Seavox] Draft mapping

[Olivier Lauret]

Dear Roy,

Thank you for your ontology. A few comments:
*I think that sea level from satellite data most often refer to open ocean 
exclusively. In other words for your mapping I'd suggest to add something like:
(BODC) Sea level ---> (GCMD) EARTH SCIENCE > Oceans > Sea Surface 
Topography > Sea Surface Height

*I am not totally sure that BODC PDV is proposing a parameter for ocean 
currents in general (velocities etc.). Within Seadatanet there will be some 
datasets of ocean currents issued from satellites, so we may add some 
vocabulary for such parameters (if, of course, you confirm that they do not 
exist yet in BODC PDV)
In that case there would be a new line:
(BODC) "Ocean currents", or something else --> (GCMD) EARTH SCIENCE > 
Oceans > Ocean circulation > Ocean currents
What do you think?

*About the mapping with CF Standard Names, the CF vocabulary is regularly 
updated. I've submitted some new entries a few month ago, but they are not 
on the CF web site yet. They should be in the forthcoming weeks I suppose, 
so do not hesitate to contact me about this.

Good luck for the remaining 95% :-)

Best regards,

Olivier.


Le 16:07 31/01/2007,Roy Lowry écrit:
>Dear All,
>
>I'm starting to dip my toe into the development of a parameter ontology 
>that will eventually cover BODC Discovery Vocabulary, GCMD Science 
>Keywords and CF Standard Names.  The big step forward from the existing 
>map is that this one now introduces the simple thesaurus relationships 
>narrower, broader and synonymous rather than just an indication that the 
>terms are related.
>
>Attached is my first bash covering about 5% of the BODC PDV to GCMD.  It's 
>as an Excel spreadsheet, which I thought would be easiest for most of you, 
>with BODC PDV terms, GCMD terms and the mappings each way.  Any comments 
>welcome before I go into mass production.  One issue causing me unease 
>is  that I've mapped many BODC terms broader even though I think the 
>parameter dimension is synonymous because I see the concept of 'water 
>column' as broader than 'Oceans' - more equivalent to the GCMD 
>'Hydrosphere', so views on this are of particular interest.  I also now 
>realise that splitting nitrate+nitrite from nitrate in the BODC PDV wasn't 
>a smart move!
>
>Cheers, Roy.
>
>
>
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Olivier Lauret

CLS Space Oceanography Division
Data Information and Diffusion
8-10 rue Hermes,
31526 Ramonville-St-Agne, Cedex, France

Email: olivier.lauret at cls.fr
Tel: (+33) (0) 561 39 48 51
Fax:(+33) (0) 561 39 48 51
Internet:
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http://www.aviso.oceanobs.com/