1. Roy Lowry & Adam Leadbetter
British Oceanographic Data Centre
rkl@bodc.ac.uk & alead.ac.uk

2. • Creating information products for EMODnet
from SeaDataNet data
• Increased discoverability of Parameter Usage
Vocabulary Codes
• Increased interoperability with work of CSIRO
under the ODIP project

6. • Semantic aggregation:
1. Deciding what the aggregated parameter is (and
what it is to be called)
2. Deciding which “Parameter Usage Vocabulary”
codes are to be included in the aggregated
parameter
3. Providing this information to the aggregation
software
4. Aggregating the data

7. • Two fold:
•Develop semantic aggregation work from
other projects
•Expose the underlying semantic model
beneath the “BODC Parameter Usage
Vocabulary (P01)”

9. • RDF/XML driver file always accessible from the
URL of the aggregation parameter
• Application software could either call the URL
in real time or cache the knowledge base
• Governance simply(!) supplies agreed
aggregation names and their mappings to P01
• BODC keeps governance informed of additions
to P01 so mappings can be kept up to date.
http://vocab.nerc.ac.uk/collection/P35/current/

10. Latitude
Depth
Temperature
Salinity
Sea Water
Density
Calculation
http://netmar.nersc.no

11. Latitude
Depth
Temperature
Wave
period
Sea Water
Density
Calculation
http://netmar.nersc.no

12. Concentration of tributyltin cation
{tributylstannyl TBT+ CAS 36643-28-4}
per unit dry weight of biota {Mytilus
galloprovincialis (ITIS: 79456: WoRMS
140481) [Subcomponent: flesh]}
http://vocab.nerc.ac.uk/collection/P01/current/MMUSDTBT/

13. Concentration of tributyltin cation
{tributylstannyl TBT+ CAS 36643-28-4}
per unit dry weight of biota {Mytilus
galloprovincialis (ITIS: 79456: WoRMS
140481) [Subcomponent: flesh]}

14. {"measurement":"Concentration",
"substance": {
"primaryName":"tributyltin cation",
"synonym":["tributylstannyl","TBT+"],
"CAS":"36643-28-4"},
"measurementMatrixRelationship":"per unit dry weight of the",
"matrix":"biota",
"organism": {
"taxon":"Mytilus galloprovincialis",
"aphiaID":"140481",
"name":"unspecified ",
"gender":"unspecified",
"stage":"unspecified",
"part":"flesh",
"specifics":"unspecified"},
"technique":"unspecified",
"definition":"Unavailable"}

15. MDMAP014 ALKYSPTX PHXXPR01 TCO2C1TX
Measurement Concentration Total alkalinity pH Concentration
Substance
carbon (total
inorganic)
{TCO2}
n/a n/a
carbon (total
inorganic)
{TCO2}
Relationship
per unit mass
of the
per unit volume of
the
per unit
volume of the
per unit mass
of the
Matrix
water body
[dissolved plus
reactive
particulate
phase]
water body water body
water body
[dissolved plus
reactive
particulate
phase>0.2um]
Analysis n/a spectrophotometry pH electrode

16. P01 URI
Marine
Species
S25 URI

17. Substance
Or Taxon
Property
Kind
Marine
Species
P01 URI
S25 URI

18. Substance
Or Taxon
Property
Kind
P01 URI#organism
#substance
ChEBIMarine
Species

19. Substance
Or Taxon
Property
Kind Matrix Technique
P01 URI#organism
#substance
#matrix #technique
ChEBIMarine
Species
https://github.com/adamml/semantic_model

20. • Easily integrated into software
• Ocean Data View
• SISSVoc
• Drupal
• Fits the Linked Data model
• Which we’ve been exploring with:
• Biological & Chemical Data Management Office
• Rolling Deck to Repository
• and others
http://odv.awi.de/
https://www.seegrid.csiro.au/wiki/Siss/SISSVoc
http://linked.bco-dmo.org/
http://linked.rvdata.us/

22. Journal of Ocean Technology 8(3):7-12
https://github.com/adamml/LinkedOceanDataCloud

23. • NERC Vocabulary Server
• Existing NVS uses allow for semantic
aggregation of data
• But lacking ability to discover which concepts
can be marked up
• This will be achieved by exposing the
underlying semantic model
• Collaboration through Ocean Data Interoperability
Platform (ODIP)
• Compatible with CSIRO work
rkl@bodc.ac.uk & alead@bodc.ac.uk