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A Climate Data Portal Focused on realtime and retrospective in situ data

Explore unified access to geographically distributed climate data from Observing Systems & Historical Archives. Use modern Java tools for data fusion, subsetting, and visualization. Access data from TAO, sea level, and more.

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A Climate Data Portal Focused on realtime and retrospective in situ data

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  1. A Climate Data PortalFocused on realtime and retrospective in situ data Nancy Soreide, Don Denbo, Willa Zhu, NOAA/PMEL Charles Sun, NOAA/NODC Bernie Kilonsky, U of Hawaii John R. Osborne, OceanAtlas Software American Meteorological Society / IIPS January 13-17, 2002, Orlando, FL

  2. A Climate Data PortalOverview • Objective: • Unified, networked access to geographically distributed data from Observing Systems and Historical Data Archives (focus on in situ data) • Method: • Integrate several new, modern and proven, off-the-shelf, Open Source, network-based applications and technology developments • CORBA/Java RMI Data Server – network middleware • SGT - Interactive, Java graphics tools • NdEdit - Interactive Java in-situ data selecting / subsetting tool • LDAP - Directory Services • XML - Automated metadata generation tool • Habanero - Collaborative tool environment • Dual access: • Web and desktop Java application • Web help and tutorial

  3. Network Climate Data Portal One or more Web Servers Data Servers User CORBA/DOT* Web Browser Java Servlet TAO data support Data Network Client Support CORBA/DOT* Graphics PMEL in-situ data Data CORBA/DOT* CORBA/DOT* Java Application UHi Sea Level Data Data CORBA/DOT* NODC Archive Data Data CORBA/DOT* CORBA/DOT* IPRC Archive Data Data Web: http://www.epic.noaa.gov/cdp/ Java application: ftp://www.epic.noaa.gov/java/CDPclient/install.html

  4. In situ Data collections • Data presently available: • TAO El Nino buoy data (realtime) – PMEL • Global sea level data (realtime) – University of Hawaii • Global Temperature-Salinity Profile Program (GTSPP) – NODC • PMEL hydrographic data collection – PMEL • Data in progress: • WOCE hydrographic data – Scripps Institution of Oceanography • Intl. Pacific Research Center in-situ collection –University of Hawaii • WOCE Acoustic Doppler Current Profiler data– University of Hawaii • Marine Environmental Data Service (MEDS) Canada • Future plans: • ARGO profiling float data • WOCE/CLIVAR data • DODS proxy server - selected DODS datasets

  5. A Climate Data PortalFeatures • Uniform network access • to distributed observational datasets • Sophisticated Java tools • for subsetting large, irregular, in situ data collections • Data fusion and data download • From a desktop Java application or the web • Modern, scalable off-the-shelf components • Open Source Java, CORBA, LDAP, XML • Free and low maintenance • Extensible • Scalable • Extensible to satellite, gridded products, model results • Poised to utilize new networking technology (e.g.,network Quality of Service, Collaboration) • Significant technology spin-offs already realized

  6. Subsetting tool NdEdit: Linked windows show in-situ data locations in time and space Lat-time view • Show map view • Show any 2d view • Select in any window Map view Data is distributed in time from 1986-1991

  7. … sliding the time window (right) reveals geographic location of data in map view (left)

  8. Time Filter Data locations (left window)for Time bands (right window) ALL YEARS 1990 1987

  9. Subsetting tool Features • Overlay bathymetry • Overlay coastlines • Selection tools • Box • Polygon • Multi-segment line – user settable width • Select in any window • Retain or delete selected stations Selecting a multi-segment section line along a bathymetry contour

  10. Data fusion with Java application • Ocean Profiles • NODC GTSPP • Silver Spring • PMEL TAO • Seattle • PMEL CTD • Seattle • Overplot or plot data individually • Add profiles to the plot at later time • Zoom feature

  11. Metadata available with Java

  12. Data fusion with Web interface • Ocean Profiles • NODC GTSPP • Silver Spring • PMEL TAO • Seattle • Metadata available • Web interface is less interactive than Java application

  13. Metadata available on Web

  14. Web: http://www.epic.noaa.gov/cdp/ Java application: ftp://www.epic.noaa.gov/java/CDPclient/install.html

  15. Technology spin-offs See AMS IIPS agenda for presentations • ncBrowse • A Graphical netCDF File Browser (Java) • http://www.epic.noaa.gov/java/ncBrowse/ • SGT • Scientific Graphics Toolkit (Java) for creating interactive graphics applications • http://www.epic.noaa.gov/java/sgt/ • NdEdit • Interactive tool for graphically selecting and subsetting large in-situ data collections (Java) • http://www.epic.noaa.gov/epic/software/JavaNdedit.htm • Collaboration tools for Fisheries-Oceanography • OceanShare, http://www.epic.noaa.gov/collab/

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