eo1.geobliki.com
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eo1.geobliki.com www.vightel.com 1
EO1.GEOBLIKI.COM
GeoData…Blog…Wiki…Forum…“Building Communities
Around Geospatial Data”
GeoBliki
pat@vightel.comFOSS4G2006Sept 11-15Lausanne, Switzerland
Pat G. Cappelaere
eo1.geobliki.com www.vightel.com 2
OGC SWE
• Open Geo-Spatial Consortium– OWS-4 Interoperability Testbed: Dec 2006
– Sensor Web Enabled Data Node• EO-1 Web Enabled Tasking (SPS)• EO-1 Subscriptions/Notifications (SAS)
– Content Distribution (GeoRSS/Atom Feeds)• EO-1 Data Retrieval Queries (WFS)• Role-based Access Control and Identity 2.0• EO-1 Data Access and Automated Processing
– SOS, SensorML, WPS, WCS, BPEL– EO-1 Capabilities Registration
Work in Progress
eo1.geobliki.com www.vightel.com 3
Architecture Diagram
Obs DB
SAS
SPS
WPS
Controller
subscribe
alert!
submitRequest
getObservation
execute
SOS observation
result
? !
display
task
put
2 3
1
4
56
7 8
10
11
9
get
12
get
13
14
change
Viewer
Decision
Support
System
EO-1 Data Node ebRIMRegistry
Register
Discover
eo1.geobliki.com www.vightel.com 4
EO-1
• Earth Observing-1 (EO-1) Mission– New Millennium Program (NMP)– Technology-Driven Mission
• NASA Goddard Space Flight Center (DC)• Jet Propulsion Laboratory (CA)• Autonomous Sciencecraft Onboard Experiment • Model-based diagnostics, CASPER JPL Planner and Expert System
• Onboard Cloud Cover Detection and Prediction• Automated Detection of Volcanoes and Fires with Collaborating Space/Ground Assets
The OWS-4 Satellite :)
eo1.geobliki.com www.vightel.com 5
EO-1• Low Earth Orbit, Sun Synchronous• Hyperspectral Land Imager (Hyperion)
– 7.5 km Swath– 224 bands (VNIR/SWIR)
• Multispectral Advanced Land Imager (ALI)– 37km cross-track coverage– 9 MS Bands (30m)– 1 Panchromatic Band (10m)
http://eo1.gsfc.nasa.gov/http://ase.jpl.nasa.gov/http://directory.eoportal.org/pres_EO1EarthObserving1.html
Yangt ze River and Lake Dongting, China, Hyperion, L1R, HDF format
The Earth Observing One (EO-1) satellite captures a clear image of New York, September 12, 2001.
More Info:
eo1.geobliki.com www.vightel.com 6
GeoBliki for SWE
• Many Data Nodes• Low Cost of Entry
– Open Source– Ruby on Rails for Quick Prototyping– MySQL– Typo, Hieraki, RForum, RBAC– WildFire (XMPP), Chat– Yadis/OpenID– Community MapBuilder, Ajax– Social Network Analysis, Friend-Of-A-Friend
eo1.geobliki.com www.vightel.com 7
Why A Blog for a WFS?
• Processed Imagery Becomes Available Almost Daily.
• Automatic Content Management
• Archival• Retrieval
– Tags– Categories
eo1.geobliki.com www.vightel.com 8
Content Syndication & Distribution
• Aggregators– Pubsub/Feedster…
• Subscriptions– By AOI or other filter…– Email, SMS, IM…– Desktop Alerts…
• News Readers• GeoRSS/Atom Feeds
– www.georss.org
A SAS for the rest of us!
eo1.geobliki.com www.vightel.com 9
GeoRSS/Atom 1.0• Current Development/Research Work
– Extending Atom• OGC Specific Tags…
– Geographic Granularity• Flinn-Engdahl
– 50 Regions– 757 Zones
<entry>… <georss:where> <gml:Point> <gml:pos>-159.774,62.1664</gml:pos> </gml:Point> </georss:where> <georss:zone_number>1</georss:zone_number> <georss:zone_name>Central Alaska</georss:zone_name> <georss:region_number>1</georss:region_number> <georss:region_name>Alaska - Aleutian Arc</georss:region_name></entry>
eo1.geobliki.com www.vightel.com 10
WFS Spatio-Temporal Queries
Powered by Community MapBuilder
eo1.geobliki.com www.vightel.com 11
OGC GeoWiki
• Create a WMC/OWSContext Document
• Add Comments…• And Eventually
Annotate It! • Create/Share Your
Own page
eo1.geobliki.com www.vightel.com 12
Identity 2.0
• Hot Issue for OGC Web Services• Requirements
– Know Your User ($$?)– Know His/Her Access Permissions (Profile Exchange)– Allow Users From Other Trusted Organizations– Support A Federated Environment of Trusted Servers
• Our Current Approach for HTTP Get/Post:– YADIS/OpenID– Every GeoBliki User Gets an OpenID URL
• SOAP Approach TBD• OGC GeoDRM Digital Rights Management Thread Might
Change This
eo1.geobliki.com www.vightel.com 13
Sensor Planning System (SPS)
• For Authenticated/Authorized Users– Point & Click Tasking
• GetFeasibilities• SubmitTasking• Status
– Notifications/Alerts using email, IM
• JPL Site for Target Overflight Times • UAH SOS for Orbit Prediction
– To Be Integrated
• Weather Prediction & Cloud Coverage
eo1.geobliki.com www.vightel.com 14
Service Chaining (Goal)
SPS
SOSWPS/
SensorMLWCS WFS
Blog
SyndicationBPEL/SensorML
ebRIMRegistry
Water,Fire…
WMS
SAS
eo1.geobliki.com www.vightel.com 15
GeoBliki Connections
Building a Community…
eo1.geobliki.com www.vightel.com 16
GeoBliki Community
eo1.geobliki.com www.vightel.com 17
Lessons Learned
• Data Availability/Access Problem• User Identity Problem (RBAC)• Federated/Decentralized Systems vs. Centralized System
• Simple Interfaces Win• GeoRSS Content Syndication• Email is still pretty good! (GeoRSS over email)
• SOAP Issue
eo1.geobliki.com www.vightel.com 18
Thank You
• EO1 GeoBliki Development Team– Pat Cappelaere pat@vightel.com – Linda Derezinski linda@innovatesolutions.com– Stu Frye sfrye@mitretek.org – OGC OWS-4 SWE Group (John Davidson…)
• Sponsors– Goddard Space Flight Center
• Dan Mandl– OGC
• George Percival– Naval Research Laboratory
• Mike Hurley• Omar Medina
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