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NOAAServer: Unified access to distributed NOAA data
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Transcript of NOAAServer: Unified access to distributed NOAA data
NOAAServer: Unified accessto distributed NOAA data
Ernest Daddio, NOAA/ESDIM
Steve Hankin, NOAA/PMEL
Donald Denbo, NOAA/PMEL/JISAO
Nancy Soreide, NOAA/PMEL
Saul Rosenberg, NOAA/ESDIM
Joe Sirott, NOAA/PMEL/JISAO
Steve Roberts, UCAR/JOSS
W. Zhu, NOAA/PMEL/JISAO
AMS / IIPS, Jan 10-15, 1999, Dallas, TX
NOAAServer
Objective: Provide centralized, unified access to distributed NOAA data
Participants: All of the NOAA Line Offices National Environmental Satellite Data and
Information Service National Marine Fisheries Service National Ocean Service National Weather Service Oceanic and Atmospheric Research
NOAAServer
Initiated in NOAA’s Environmental Services Data and Information Management (ESDIM) office in 1995
Integrates 14 distributed data servers Over 15,000 metadata descriptions Available from the NOAA Home Page
http://www.noaa.gov http://www.esdim.noaa.gov/NOAAServer
Operational NOAAServer
Locating data: Enter search criteria The NOAAServer returns a list of data
collections meeting the search criteria View a description of the data collection If data is on-line, interact to subset data,
obtain plot or listing of data If sub-setted data is sufficiently small, data
can be downloaded to the users disk
Operational NOAAServer*
Representative data: satellite images time series of oceanographic and
meteorological station measurements two-dimensional oceanic parameters text documents vertical profiles of measurements through the
atmosphere and the ocean
* http://www.esdim.noaa.gov/NOAAServer
Operational NOAAServer
Operational NOAAServer
Operational NOAAServer
Integrates NOAA Data and Information Services on the Web
Centralized search for NOAA wide data holdings: Search, view, download/order distributed NOAA
data http and conventional, legacy CGI scripts
but different datasets have different navigation and interface characteristics
Where are we headed?
Recent developments include methods for providing a centralized and unified data access
Next Generation NOAAServer Data is easily located and accessed User sees a consistent search and navigation
interface So data is viewed consistently across servers Better service to a wider audience
Next Generation NOAAServerPrototype demonstration
connects 6 geographically distributed data servers in Silver Spring, Boulder, Seattle
CORBA for network connections unified interactive Java graphics* data from distributed servers are co-
plotted together on the same axis on the users desktop
* http://www.epic.noaa.gov/NOAAServer/sgt
Next Generation NOAAServer
Gridded COADS Climatology dataset (red) plotted with buoy time series from TAO (green)
Next Generation NOAAServer
COADS data (Seattle) and buoy time series from NODC (Silver Spring) & PMEL/TAO (Seattle)
Next Generation NOAAServer
Atmospheric profile data (UCAR,Boulder) plotted with ocean profiles (PMEL,Seattle)
Next Generation NOAAServer Architecture
Client (user’s web browser) Javascript and Java Applets
Mirror Site Web Server Application logic Graphics
Local Data Server Present data as Objects to
network
Existing Legacy System SQL capable databases netCDF, custom applications
Client
MirrorSite
LocalDataServerNavigation
ModelData
Model
CORBA CORBA
NOAAServerReference Server
IIOP
http
Tie
r 1
Tie
r 3
Tie
r 2
Tie
r 4
LocalConfiguration
Files
Existing Data Management System(e.g. Ferret, netCDF, PostgreSQL)
GUI (JavaScript/JavaApplet)
Web Browser
DataModel
SciGraph
CORBA CORBA
Web Server
Java Servlet/CGI
NavigationModel