1. EPIC: Providing World Wide Web Access to Oceanographic Observations D.W. Denbo 1, N.N. Soreide 2, M.C. Spillane 1, and W.H. Zhu 1 1 Joint Institute for the Study of Ocean and Atmosphere, University of Washington, Seattle, WA, 2 NOAA/Pacific Marine Environmental Laboratory, Seattle, WA http://www.pmel.noaa.gov/epic/home.html

2. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 2 Background zEPIC was developed at NOAA’s Pacific Marine Environmental Laboratory (PMEL) to manage hydrographic and time series oceanographic observational data sets.NOAA’s Pacific Marine Environmental Laboratory (PMEL) zEPIC Web tools yBasic web utilities to reduce development time yEPIC Web Browser provides easy access to on-line data yJava enhanced data selection creates an improved interface to the EPIC Web Browser

3. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 3 Web Utilities zEPIC utilities for creating dynamic Web pages include: yAnyURL - uses forms to point to static URLs (gif, mpeg animations, or other Web pages) ycover - dynamic generation of graphics or listings by running existing utilities from a Web page yclickable maps - cgi script translates mouse clicks on a map to a latitude-longitude rectangle ym2gif - convert Plot Plus output directly to gif format

4. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 4 EPIC Web Browser zWeb application for viewing observational data by creating graphics and listings “on the fly”. zUses a set of perl routines that generate HTML. Routines can be called as cgi scripts or from other perl scripts. zUses EPIC Web utilities to provide functionality.

5. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 5 EPIC Web Browser Capabilities zPlot (T, S, Sigma-t, Ox) vs Pressure/Depth zPlot Temperature vs Salinity zPlot user-selected property vs Pressure/Depth zPlot two user-selected Properties vs Pressure/Depth zPlot Station Locations zPlot Vertical Sections

6. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 6 EPIC Web Browser Capabilities (cont) zList data files in ASCII format zDownload data file in binary (EPIC/netCDF) format zView meta-data/attributes of data file zEdit data file selection list zDownload data file selection list

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9. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 9

10. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 10 Java Tools Java Interface to EPIC data selection zCombines Java applets with existing HTML forms and cgi scripts. zProvides “point and click” interface to on-line databases from the Web. zSearches databases then starts the EPIC Web Browser.

11. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 11

12. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 12 Java Tools (cont) Java-enhanced Interface to Real-time TAO Data zInteractive access to the most recent TAO data zUses existing cgi scripts to generate buoy summary plots

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14. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 14 Availability zEPIC is freely available and used at numerous oceanographic institutions yWoods Hole Oceanographic Institute yU.S. Geological Survey yScripps Institution of Oceanography yetc... zAvailable at: http://www.pmel.noaa.gov/epic/epic-toolkits.htmlhttp://www.pmel.noaa.gov/epic/epic-toolkits.html zEPIC Home Page: http://www.pmel.noaa.gov/epic/home.htmlhttp://www.pmel.noaa.gov/epic/home.html zEPIC Web Browser: http://www.epic.noaa.gov/epic/browser/browser_doc.html http://www.epic.noaa.gov/epic/browser/browser_doc.html

15. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 15 References zDenbo, D.W., and N.N. Soreide, 1997: EPIC. Oceanography, 9(3), 189-190. zDenbo, D.W., S. Zube, D.C. McClurg, and N.N. Soreide, 1997: EPIC and TAO data access with Java applets. Proceedings of the 13th International Conference on Interactive Information and Processing Systems for Meteorology, Oceanography and Hydrology, AMS, 2-7 February 1997, Long Beach, CA, 182-183.Denbo, D.W., S. Zube, D.C. McClurg, and N.N. Soreide, 1997: EPIC and TAO data access with Java applets zRenton, M.W., and N.N. Soreide, 1997: EPIC utilities for data access on the World Wide Web via forms. Proceedings of the 13th International Conference on Interactive Information and Processing Systems for Meteorology, Oceanography and Hydrology, AMS, 2-7 February 1997, Long Beach, CA, 441-443.

16. January 14, 1999 http://www.pmel.noaa.gov/epic/home.html 15th IIPS, Dallas, TX 16 References (cont) zZube, S., D.C. McClurg, N. Merati, M.W. Renton, T. Vance, and W.H. Zhu (1997): Live access to oceanographic databases on the World Web Web via the EPIC Web Browser. Proceedings of the 13th International Conference on Interactive Information and Processing Systems for Meteorology, Oceanography and Hydrology, AMS, 2-7 February 1997, Long Beach, CA, 184-186.