introduction to controlled vocabularies (term lists)

Introduction to Controlled Vocabularies

(Term Lists)

Controlled Vocabularies

What: list of terms to choose from Aim: easier to transfer dataWhere: Data Guidelines and Discovery

Metadata Standard

Vocabularies are available directly or

‘served’ using the NERC Vocabulary Server (SeaDataNet)

Example – Platform types

Website

http://vocab.ndg.nerc.ac.uk/client/vocabServer.jsp

NERC Vocab Service:

http://seadatanet.maris2.nl/v_bodc_vocab/welcome.aspx/• Units, Instruments, platforms, sea areas etc

SeaDataNet

http://seadatanet.maris2.nl/v_bodc_vocab/vocabrelations.aspx

SeaDataNet

Parameter relationships and discovery

Other Useful Controlled Vocabularies

http://www.epsg.org/

http://www.marinespecies.org/msbias/index.php

http://www.ices.dk/datacentre/reco/

How to add?

E-mail Clare Postlethwaite cfpo@bodc.ac.uk – check with appropriate governance group.

Practical

Aim – to familiarise yourself with different controlled vocabularies

1)Find the MEDIN webpage for controlled vocabularies 2)Find:

a) Area code for the Irish Sea (use SeaDataNet)b) The AphiaID for UK species Mytilus edulis (Common

mussel) (use MSBIAS)c) Code for the horizontal coordinate reference system

WGS 84 (use EPSG)d) The entrykey, vocabulary name and associated date for

a Keyword for “Man-made Structure”

a)1_4 (using SeaVoX gazeteer) [or 19 using SeaDataNet sea areas]b)140480c) EPSG: 4326d) MMSTSeaDataNet Parameter Discovery Vocabularydate last modified 2008-01-30