marlin - csiro marine laboratories information network
TRANSCRIPT
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MarLIN -
CSIROMarine Laboratories Information Network
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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.)
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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)
Other Organisations’ databases
CMR
MarLIN-ASDD
connection
Other resources
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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
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Example search results
Lists of titles
Dataset “quick links” pages
Links to voyage tracks (as stored .gif images)
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Full metadata record with on-line links, etc.
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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”
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Present MarLIN Access points
via CMR Data Centre page
via ASDD page
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US FGSC Clearinghouse page information ...
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MarLIN “user-defined search” interface
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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
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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