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GEOSS Services Network Telecon 3

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GEOSS Services Network Telecon 3 Powered By Docstoc
					GEOSS Services Network
    Telecon 30 March 2006




          George Percivall
    Open Geospatial Consortium
    percivall@opengeospatial.org
     GSN Telecon 13 April 2006 - Agenda
• OGC Network and GEOSS - George Percivall
  – GEO 2006 Work Plan Tasks
  – Overall GSN workshop demo plan summary for 2006


• GSN for China Workshop - Jinsoo You

• Any Other Business




                                                  Helping the World to Communicate
                                                  Geographically
            GEO 2006 Work Plan Update
• GEO Architecture and Data Committee - March 2 & 3
  – Reviewed GEO tasks directly assigned to ADC
  – Identified lead organizations and contributing organizations for each
    task
  – OGC to lead 1 task and contribute to several others
  – Now seeking OGC members to participate in GEO ADC tasks in
    2006
• Updated task sheets for all 97 GEO tasks
  – http://www.earthobservations.org/doc/
• Task leaders to report on progress: 30 June and 30
  September
  – OGC leads a task using GSN


                                                         Helping the World to Communicate
                                                         Geographically
            The Workshop Series
    “The User and the GEOSS Architecture”

• GEOSS Workshop Series
  Led by IEEE; Demo by OGC using GSN
                                                                              OGC lead
  May 22-23            Beijing, China          FIEOS(1)                       U. Nottingham
  July 8-9             Corsica, France         ISEIM(2)                       (TBD)
  July 30              Denver, US              IGARSS06                       GMU
  Sept 25-26           Goa, India              ISPRS Comm IV(3)               UCL
  October 28-29        Cairo, Egypt            AARSE                          CSIR

  (1) Future Intelligent Earth Observing Satellites
  (2) The First International Symposium on Environment Identities and Mediterranean Area
  (3) Geospatial Databases for Sustainable Development
  (4) African Association of Remote Sensing of the Environment


• OGC Demo at GSDI?
   – Invitation to OGC from Harlan Onsrud for GEOSS workshop and
     demo at GSDI 9 in Santiago Chile, November 8 - OGC lead is
     TBD

                                                                            Helping the World to Communicate
                                                                            Geographically
          OGC members Participating in GSN
• Canada                    • United Kingdom
   – NRCan/GeoConnections     – University of Nottingham
• Europe                      – UCL
   – EUSC                   • United States
• Italy                       –   Carbon Tools
   – IMAA/CNR                 –   CIESIN
• South Africa                –   George Mason University
   – CSIR                     –   ORNL
• Other                       –   NASA
   – IEEE as liaison          –   NCAR/UCAR
   – OGC staff                –   NOAA
                              –   Washington University




                                                Helping the World to Communicate
                                                Geographically
OGC Demo in Beijing GEOSS
       Workshop
      Telecon 13 April 2006




              Jinsoo You
     Centre for Geospatial Science
        University of Nottingham
     jinsoo.you@nottingham.ac.uk
http://fieos.rsgs.ac.cn/E/IEEE_GEOSS_Beijingv2/Arch_workshop.html




                                                    Helping the World to Communicate
                                                    Geographically
   Action Items from previous telecon (03/30/2006)

1.Contact Wei Yu regarding progress in adding WMS to his site (Jinsoo).
2.Define a second area of interest (AOI-2) that is smaller than the bbox
  today (AOI-1). AOI-2 to focus on near Hainan Dao (island). To include
  processed wind atlas of this area, contact Charlotte Hasager for
  detailed area information (Jinsoo).
3.Send TIE matrix example to GSN list (George).
4.Develop TIE matrix using the components identified for the Beijing
  demo (Jinsoo).
5.Contact Jay Pearlman regarding bandwidth at China demo
  site (George).
• Contact Jay Pearlman regarding Societal Benefit are theme for IGARSS workshop
  (George).




                                                                   Helping the World to Communicate
                                                                   Geographically
    GEOSS Workshop, May 22-23, 2006, Beijing

• Feb - Confirm GSN support of workshop.
• Feb - Confirm Internet capabilities at the site of the
  workshop.
• March - Develop wind energy scenario.
• March - Identify scenario specific data sources.
• April - Components available on-line
• April - Client server testing
• April - Demo scenario testing
• May - On-site testing
• May - Workshop


                                                   Helping the World to Communicate
                                                   Geographically
           Common Windfarm Siting Criteria

•   Landscape factors
•   Proximity to and impact upon residential buildings
•   Biodiversity impact
•   Potential highways constraints and access issues
•   Wind speeds (at Hub Heights)
•   Land ownership and constraints
•   Topography
                                             Prospecting
•   Archaeology                               Validation
•   Hydrology
                                             Micrositing
•   Connection to the electricity grid


                                              Helping the World to Communicate
                                              Geographically
    2nd Draft Scenario - Windfarm Site Selection
•   Search catalogs for datasets (Catalog Service/Metadata)
•   Review selected map datasets (WMS)
•   Categorize the wind speed data and select certain wind speed ranges, and
    display the results
•   Draw wind direction (with symbols)
•   Browse the weather station data (WFS), and select a more limited set of sites
•   Calculate the area of each group of contiguous cells (i.e., a candidate site)
    and discard small sized candidates
•   Measure the distance between the candidate sites and the nearest road
    segment
•   Measure the distance between the candidate sites and the nearest
    transmission lines (or substation locations)
•   Measure the distance between the candidate sites and the environmentally
    sensitive areas
•   Exclude environmental and other exclusive areas from the group of
    candidates
•   Review the terrain data to determine suitability for windfarm siting (possibly
    3D/WTS)
•   Search for the land ownership data for the limited set of sites
                                                                 Helping the World to Communicate
                                                                 Geographically
      Possible Architecture & Clients
                                        WMS = Web Map Service
                                        WCS = Web Coverage Service
WMS                                     WFS = Web Feature Service
                                        CSW = Catalog Service - Web
                                        CPS = Coverage Portrayal Service
WCS                                     VCG = Viewer Client Generator
                       VCG
WFS
                                             Web Browser
                       WMS                    using VCG

WCS                    CPS                    OWS Client
                                             not using VCG
WFS                                          Q. Any thick
                       CSW                   client available?


      High Bandwidth         Low Bandwidth
          Network               Network
         1 Mbit/sec           100 Kbit/sec    Helping the World to Communicate
                                              Geographically
lat/lon Bounding Boxes for Two AOIs
 AOI-1: minx=105.0 miny=15.0 maxx=125.0 maxy=40.0
 AOI-2: minx=105.0 miny=18.0 maxx=115.0 maxy=22.0




                                Image Source: SRTM3 DEM, ICEDS

                                                Helping the World to Communicate
                                                Geographically
Some Examples from WE Community

        WEST




        WAsP




                           Helping the World to Communicate
                           Geographically
    Potential Contributions from WE Community

• Charlotte Hasager (RISO) will perform wind data analyses
  for AOI-2 based on Envisat satellite images.
  – Results (one mean wind speed and one Weibull A map) will be
    available at the end of April.
  – Envisat images were captured on 2003-09-16, 2003-11-24, 2004-
    05-01, 2004-09-29, 2005-05-15, 2005-08-28, 2005-10-02, 2005-11-
    06, 2005-12-11
  – (Need to establish a WCS service for the results from RISO and
    wind speed datasets at 10 & 40 m above ground from Sun Yat-Sen
    Univ.)
• Wei Yu (Environment Canada) could establish a WMS for
  wind data.
  – Will discuss with Tom Kralidis/Brian/Mohamed.
  – Potential image examples are shown in the following slides.


                                                        Helping the World to Communicate
                                                        Geographically
     Mean Wind Speed (for the period of 1958-2000)



• The mean wind speed (for the
period of 1958-2000) is based on MC2
simulations (5km).
• The dominant winds are from north-
east.
• The model simulated a shadowing
effect of the island on the mean wind
speed.
• It would be interesting to compare
the model wind speed with that
derived from satellite data.

- Wei Yu, Environment Canada -




                                         Helping the World to Communicate
                                         Geographically
Terrain Elevation (from USGS 1Km DB)




                               Helping the World to Communicate
                               Geographically
             Surface Roughness
(based on land use or vegetation cover; from USGS 1Km DB)




                                               Helping the World to Communicate
                                               Geographically
       Wind Data for GSN Beijing Demo (see More)
        G. Rutledge (NOAA-NSDC), B. Domenico (Unidata), R. Husar (Wash U.)
     Data Access Services
                                 Portrayal &                  Internet
  Forecast        Unidata
 Meteorology     WCS Server
                              Chaining Services

  Archived         NCDC            DataFed
 Meteorology     WCS Server       WMS Server
                                                              GSN Beijing
 Other Data       Other
Station, Image   WMS, WCS                                     WMS Client




         Large
         Region
                                                           Small Region


                                                                       Helping the World to Communicate
                              rhusar@me.wustl.edu 060410               Geographically
WMS Layers from DATAFED (Rudy Husar)




   http://capita.wustl.edu/capita/researchareas/GSN/WMS_DataLayers/GSN_China_WMSLayers.htm

                                                                                   Helping the World to Communicate
                                                                                   Geographically
 TIE Matrix (TBD)




TIE = Technical Interoperability Experiments
                                               Helping the World to Communicate
                                               Geographically
                   Internet Connections
• At Xijiao Hotel, Beijing, China
• Various additional bandwidth tests have been performed by
  the workshop organizers.
• Difficult to achieve around the 1Mbit/sec connection speed
  with currently available options.
• For the stable bandwidth over 1Mbit/sec, the only choice
  would be to rent a separate service from China Telecom.
  – It requires a special installation with the fiber optic cable to the
    meeting room. Total costs would be about $750. ($375 for the fiber
    optic cable installation and $375 for one month rent. One month rent
    is the minimum contract.)



                                                        Helping the World to Communicate
                                                        Geographically
Relevant Information will be posted on the OGC Network Site




                                              Helping the World to Communicate
                                              Geographically
       GSN Telecon - Any Other Business
• Next telecon:
  – 3 PM in UK, 10 am in DC, 1400 GMT
  – Date: 27 April (Thursday)?
• GSN e-mail additions
• Any other business




                                        Helping the World to Communicate
                                        Geographically
Backup Slides for Potential Data Sources
 (with some updates from the previous telecon)


                   - CIESIN
                     - GMU
                    - NASA
                    - NOAA
                      - UCL

                      …
                       GMU (Liping Di)

Data:
• Landsat TM at 28 m resolution.
• 3 arcsecond (~90m) DEM.
• MODIS data at 250(m?)~1 km resolution.
• Datasets available at NASA EOSDIS can be also used.

Services:
• Catalog service.
• WMS/WCS: (All data available from GMU’s geobrain site can be
  accessed through WMS/WCS.)




                                                     Helping the World to Communicate
                                                     Geographically
                        UCL (Jeremy Morley)

•   3 arcsecond resolution Shuttle Radar Topography Mission (SRTM) DEM data
    for the globe (to ~60 degrees North/South)
•   Colour-coded and hill-shaded for presentation in the WMS - red pixels indicate
    no SRTM acquisition – cf) can be enhanced using SRTM v.2;
•   DEM elevations in a signed 16-bit GeoTIFF in the WCS - 'missing' pixels filled
    by interpolation (mask available indicating gaps)
•   WMS GetCapabilities URL:
    http://iceds.ge.ucl.ac.uk/cgi-
    bin/icedswms?SERVICE=WMS&REQUEST=GetCapabilities
•   WCS GetCapabilities URL:
    http://iceds.ge.ucl.ac.uk/cgi-
    bin/icedswcs?SERVICE=WCS&REQUEST=GetCapabilities




                                                                Helping the World to Communicate
                                                                Geographically
                   NASA (Nadine Alameh)

• NASA Earth-Sun System Gateway (ESG) prototype (
  http://esg.gsfc.nasa.gov )
  – all relevant service items can be registered in ESG
• Quick search on China, wind, and WMS services
  – OGC context file has been generated
• Using ESG
  – Data can be discovered from Goddard DAAC, Physical Oceanography
    DAAC and JPL, etc.
  – SEDAC services can be used when it’s registered (soon)
  – ESG harvests metadata from selected NSDI and GSDI nodes directly
• ESG can be used as an OGC CSW catalog
  – The prototype CSW interface (
    http://esg.gsfc.nasa.gov/wes/serviceManagerCSW/csw? ) - ?




                                                          Helping the World to Communicate
                                                          Geographically
           NOAA/NOMADS (Glenn Rutledge)

• NCEP Global Forecast System wind u and v components
  – Could be used to generate magnitude maps
  – Scripts can be provided
• NCEP/NCAR Global Reanalysis-2
  – Both at about 50m but on pressure surfaces
• IPCC CM2.x data
  – Showing big picture view out 100 years (+/-) or so from NOMADS partner at
    GFDL/Princeton




                                                            Helping the World to Communicate
                                                            Geographically
       CIESIN, Columbia University (Greg Yetman)
• WMS
   –   Population density (2.5 arc-minutes resolution) 1990, 1995, 2000, 2005, 2010, 2015
   –   Population density (30 arc-seconds resolution) 1990, 1995, 2000
   –   Urban extents (30 arc-seconds) circa 1995
   –   Human footprint layer from the Last of the Wild Project (30 arc-seconds)
   –   National boundaries and coastlines
   –   Wild areas from the Last of the Wild Project
   –   1st and 2nd administrative level boundary data for China (equivalent of provinces and
       counties)
• WCS
   –   Population counts and density (2.5 arc-minutes resolution) 1990, 1995, 2000, 2005, 2010, 2015
   –   Population counts and density (30 arc-seconds resolution) 1990, 1995, 2000
   –   Land area (2.5 arc-minutes resolution)
   –   Mean geographic unit area -- a data quality indicator (2.5 arc-minutes resolution)
• WFS
   –   Urban extents
   –   Wild areas from the Last of the Wild Project
   –   National boundaries
   –   Coastlines
• Test services available at: http://beta.sedac.ciesin.columbia.edu/mapserver/
• Will be revised before the demonstration in May


                                                                                Helping the World to Communicate
                                                                                Geographically

				
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