Semantic Concepts in Expedition Metadata Bob Arko Lamont-Doherty Earth Observatory OOSSI Workshop

Semantic Concepts in Expedition Metadata

Semantic Conceptsin

Expedition Metadata

Bob ArkoLamont-Doherty Earth Observatory

OOSSI WorkshopNov. 18, 2008


Expedition –

•specific science mission to study a specific locale

•research platform in motion - operates from specific time/point of departure to return

•science party onboard

•activities include remote sensing, in situ sampling, instrument deployments

•in marine context, typically a “cruise”


Expedition data management – current projects –

•Legacy of Ocean Exploration (LOE)

•Antarctic Master Directory (AMD)

•Extended Continental Shelf (ECS)

•Scientific Earth Drilling Information System (SEDIS)

•Rolling Deck to Repository (R2R)


Fleet DataPortal

Data AssemblyCenters

(SAMOS,MGDS,JASADCP,etc.)

NationalDataCenters

ResearchVessels

R2R pilot project – vision –


Expedition data model –

Collection

Expedition

Event Log Data Set

Data Object(from a sensor or a sampler)


Expedition vocabularies –

•Expedition ID

•Platform Type+ID

•Organization ID

•Person ID+Role

•Location Type+ID

•Device Type+ID

•Data Type

•Event Type


Expedition vocabulary challenges –

•when/how to control values? (e.g. people names)

•when/how to adopt or extend community standards? (e.g. extend IHO Gazetteer to local features)

•what is a data set? (output of a device? process?)


MMI projects underway –

•publish expedition vocabularies at mmisw.org

•develop device ontology (case study - scientific sonars)


MMI device ontology – scientific sonars

•subtypes (singlebeam, multibeam, subbottom, etc.)

•attributes (swath width, freq. range, etc.)

•inputs (time/position, motion, sound speed)

•outputs (bathymetry, amplitude, sidescan, etc.)

•examples


R2R posters at Fall AGU –

•Database Infrastructure (Arko)

•Quality Control and Provenance (Miller)

•Shipboard Event Logs (Chandler)

Thu. PM session IN43A

Semantic Concepts in Expedition Metadata Bob Arko Lamont-Doherty Earth Observatory OOSSI Workshop

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