A Climate Data Portal Focused 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

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 A Climate Data Portal Overview

Web Browser Java Application User NetworkNetwork CORBA/DOT* Client Support Java Servlet Graphics One or more Web Servers UHi Sea Level Data CORBA/DOT* Data TAO data support CORBA/DOT* Data NODC Archive Data CORBA/DOT* Network Data Servers Climate Data Portal Data PMEL in-situ data CORBA/DOT* Web: Java application: ftp:// Data IPRC Archive Data CORBA/DOT* Data

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

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 A Climate Data Portal Features

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

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

Time Filter Data locations (left window) for Time bands (right window) ALL YEARS

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

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

Metadata available with Java

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

Metadata available on Web

Web: Java application: ftp://

Technology spin-offs ncBrowse A Graphical netCDF File Browser (Java) SGT Scientific Graphics Toolkit (Java) for creating interactive graphics applications NdEdit Interactive tool for graphically selecting and subsetting large in-situ data collections (Java) Collaboration tools for Fisheries-Oceanography OceanShare, See AMS IIPS agenda for presentations