Putting Your Data on the Map

Transcription

1 Putting Your Data on the Map Cyndy Chandler WHOI Marine Chemistry Department Woods Hole Data Mongers / Ocean Informatics Meeting 4 April WHOI

2 Finding the OI in WHOI What is Ocean Informatics? The work of Ocean Informatics is represented at the union of oceanography, information science and social science domains. Participants range from data and information managers to scientific researchers and educators. for more information see Karen Baker s work at SIO

3 my recent & current OI projects... US JGOFS DMO US Joint Global Ocean Flux Study OCB DMO Ocean Carbon & Biogeochemistry BCO-DMO Biological and Chemical Oceanography

4 U.S. JGOFS legacy data is available online or in data reports published on CD and DVD-ROM online access is via http or OpenDAP access to data system subset, list, plot or download all data

5 Ocean Carbon & Biogeochemistry project is still active; acquiring data database is available online online access is via http subset, list, plot or download data

6 Biological & Chemical Oceanography project was funded in Fall 2006 by NSF Peter Wiebe and Bob Groman (Biology) Dave Glover and Cyndy Chandler (MCG) data team: Dicky Allison (Biology), Nancy Copley (Biology), Dave DuBois (G&G), Terry McKee (PO)

7 Biological & Chemical Oceanography no data available yet intend to provide data management support for projects funded by NSF OCE Biology and Chemistry Divisions data access will be provided from

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9 Data Access data are loaded into an object-oriented relational database, QC d and metadata records created access via http and OpenDAP Live Access Server interface for some controlled vocabulary for column names

10 U.S. JGOFS Data System Web interface

11 Data Listing select dataset select variable (columns) select range (rows) view metadata

12 Live Access Server Interface configurable Web server data and metadata interface provides access to geo-referenced scientific data presents distributed data sets as a unified virtual data base (DODS/OpenDAP) uses Ferret as the default visualization application visualize data with on-the-fly graphics request custom subsets of variables in a variety of file formats access background reference material (metadata) compare variables from distributed sources

13 LAS enables a data server to unify access to multiple types of data in a single interface create thematic data collections from distributed data sources offer derived products on the fly offer variety of visualization styles customized for the data

14 U.S. JGOFS LAS Interface interface to data and metadata data sub-selection (selections, projections) multi-variable support gridded vs. in-situ data differencing multiple views (property-property, depth horizon, cruise tracks, overplots) multiple products (ps, gif, text, NetCDF)

15 LAS v6 select dataset and variables

16 select dataset select variable set constraints select view (XYZT) select output type selections: lat/lon time depth range LAS constraints

17 LAS select dataset select variable set constraints output output

18 Comparison Overlay Plot

19 chlorophyll (May) shaded Nitrate (April) at 10 meters contours

20 Controlled Vocabularies

21 Data Access ~ next steps system design changes to improve interoperability with other data systems MapServer (UMN) interface OpenGIS specifications metadata standard FGDC, ISO 19115, EML

22 U.S. JGOFS MapServer interface being developed today by Charlton Purvis (Second Creek Consulting)

23 U.S. JGOFS MapServer interface

24 MapServer software University of Minnesota (UMN) OpenSource software for rendering geographic image maps from data create maps to aid in data discovery cross-platform (Linux, Windows, Mac OS X, Solaris) Open Geospatial Consortium (OGC) OpenGIS specifications: WMS (client/server), non-transactional WFS (client/server), WMC, WCS, Filter Encoding, SLD, GML, SOS