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MarLIN - CSIRO Mar ine L aboratories I nformation N etwork. MarLIN concept. MarLIN is a catalogue/compendium of Divisional datasets, designed for WWW access Datasets are described using standard “Metadata elements”, allowing interoperability with other catalogues
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MarLIN - CSIRO Marine Laboratories Information Network
MarLIN concept • MarLIN is a catalogue/compendium of Divisional datasets, designed for WWW access • Datasets are described using standard “Metadata elements”, allowing interoperability with other catalogues • Additional elements (descriptors) have been incorporated to suit our research activities and interests, e.g. standardised voyage references, data types, project names, species identifiers ... • MarLIN has custom-designed search software, allowing browsing of the database content in a number of different ways • MarLIN incorporates “value adding” to dataset descriptions by keying them to other information already stored in the system (voyages, project details, etc.)
MarLIN ASDD Data Warehouse Our system overview Web-based metadata entry Web-based search and display of metadata (via MarLIN) Web-based search and display of Australia-wide metadata (via ASDD gateway) MarLIN-ASDD connection Other resources Other Organisations’ databases CMR
Sample search queries (real examples …) • 06-FEB-2001 12:07 .. 130.15.245.127 .. qlink-ppp127.tele.queensu.ca .. Operation: Search datasets Criteria: Dates=1998-1998, Keywords=CTDs (Conductivity-Temperature-Depth Profilers) .. Records retrieved: 16 • 05-FEB-2001 16:57 .. 140.79.20.91 .. watson-hf.hba.marine.csiro.au .. Operation: Search datasets Criteria: Regions: Australia > Joseph Bonaparte Gulf, Source=Southern Surveyor .. Records retrieved: 5 • 02-FEB-2001 09:29 .. 140.79.21.130 .. byrnes-hf.hba.marine.csiro.au .. Operation: Procedure (rvdata1) Criteria: Franklin FR 01/98 Datatype(s): All .. Records retrieved: 4 • 07-FEB-2001 14:55 .. 129.170.152.243 .. robinson-bp-243.dartmouth.edu .. Operation: Search datasets Criteria: List datasets .. Records retrieved: 1111 • 03-FEB-2001 23:13 .. 209.73.164.13 .. vscooter.sv.av.com .. Operation: Search datasets Criteria: No region defined, Custodian=CSIRO Division of Marine Research - Cleveland, Category=ALL .. Records retrieved: 58
Lists of titles Example search results Dataset “quick links” pages Links to voyage tracks (as stored .gif images)
MarLIN future activities • Continued addition of content, especially from non-vessel sources • Increased automation of record creation from existing stored data • 2-way linkages to new CMR data warehouse, as this project starts to produce “real” (=production) system • Linking MarLIN to international metadata search gateways such as the US “FGDC clearinghouse”
Present MarLIN Access points via CMR Data Centre page via ASDD page
MarLIN benefits • Information is captured which assists (or may be essential to) interpretation of the data • Relevant information is steadily being migrated from printed form (e.g. cruise reports and other documents) to electronic, WWW-accessible form • Use of standardised keywords, etc. permits rapid automated searching and grouping of the material, in many different ways • MarLIN can be cross-linked with other databases for multi-agency searching • “Standard” dataset descriptions can include links to many other resources, including the actual data if readily available
MarLIN status as at February 2001 • Approx. 1,200 records in MarLIN to date • Data Centre holdings (mainly ship-sourced) c. 60% described • Some other groups’ holdings (e.g. Remote sensing group, XBT group) reasonably well covered • Much other Divisional information awaiting input by researchers / Data Centre staff