GPS Explorer: Overview and Extension to INDIGO geoapp.ucsd indigo.nasa
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Transcript of GPS Explorer: Overview and Extension to INDIGO geoapp.ucsd indigo.nasa
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer: Overview and Extension to INDIGO
http://geoapp.ucsd.eduhttp://indigo.nasa.gov
Paul Jamason | Scripps Orbit and Permanent Array Center (SOPAC )
IGS Analysis Center Workshop, Miami, 2008
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer/INDIGO: Participants GPS Data Products for Solid Earth Science; NASA REASON CAN
PI’s: Frank Webb, JPL; Yehuda Bock, SOPAC; Sharon Kedar, JPL Ruey-Juin Chang, Peng Fang, Paul Jamason, Ian MacLeod, Linette
Prawirodirdjo, Melinda Squibb, George Wadsworth (SOPAC); Danan Dong, Sue Owen (JPL)
Modeling On-the-Fly Solutions for Earth Science; NASA ACCESS Project
PI’s: Marlon Pierce, Indiana University (and above PI’s) Robert Granat, Jay Parker (JPL), Galip Aydin (IU) (and above)
INDIGO: Inter-Service Data Integration for Geodetic Operations; NASA REASON CAN
PI: Ruth Neilan (JPL/IGS) Co-I’s: Angie Moore, Frank Webb (JPL); Dave Stowers (JPL/IGS); Carey Noll
(NASA/GSFC/CDDIS); Mike Pearlman (CFA/ILRS); Dirk Behrend (NVI/IVS)
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Background
5-year NASA REASoN project (GPS Data Products): deliver analysis products using newer IT standards Portlet-based web portal; web 2.0 (mapping, inter-portlet
communication) Develop/use standard formats (XML) and methods (web services) for
improved metadata and data exchange
NASA ACCESS project (MOSES): users perform modeling via portlets Apply various time series models (QOCA, RDAHMM)
Extend to INDIGO: integration of multiple space geodetic techniques Leverage GPS Explorer technologies GNSS/VLBI/SLR/DORIS: provide uniform methods of data retrieval
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Framework
Uses the java-based windows in web portal with user controls; can be used in other
portal frameworks (JSR-168 standard) user accounts; save data/results for future viewing
Employs a workflow/dashboard approach users select and save groups of GPS sites via mapping portlet. Data
queries, modeling operations are performed on these in other tabbed pages.
Inter-portlet communication
Dynamic content produced via calls to back-end web services
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Portal: Content
Mapping Interface SOMI: Scripps Online Mapping Interface
• University of Minnesota MapServer; input data layers stored at SOPAC (e.g., fault lines)
• Draw bounding boxes to dynamically select sites• Recent performance boost - faster map loading
Migrating to OpenLayers• open source version of Google Maps
Processed GPS coordinates millions of xyz coordinates from SOPAC/JPL/REASON
combination/PBO combination dynamically queryable and exportable to urls
GPS Time Series, Velocities, Strain Maps
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Web Demonstration
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Portal: Geophysical Resource Web Services Standardized approach to data submission/retrieval
Inter-agency data exchange of processing metadata, coordinates
Use XML standards Geography Markup Language (GML): represent
features/geometry/reference systems/time• observation collections; filter encoding• transfer XML via SOAP/web services
Independent server-side code GPS Explorer is only a client Call web services from other web pages/sites, command-line
utilities, etc.
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GPS Explorer - IGS AC Workshop - Miami 2008
SOPAC INDIGO Support: XML IGS Site Logs
Overview: http://sopac.ucsd.edu/projects/xml
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Sample XML IGS Site Log
<igsSiteLog xmlns="http://sopac.ucsd.edu/ns/geodesy/doc/igsSiteLog/2004" xmlns:mi="http://sopac.ucsd.edu/ns/geodesy/doc/igsSiteLog/monumentInfo/2004" xmlns:equip="http://sopac.ucsd.edu/ns/geodesy/doc/igsSiteLog/equipment/2004" xsi:schemaLocation="http://sopac.ucsd.edu/ns/geodesy/doc/igsSiteLog/2004 http://sopac.ucsd.edu/ns/geodesy/doc/igsSiteLog/2004/igsSiteLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<siteIdentification> <mi:siteName>Scripps 5 - Mt. Soledad</mi:siteName> <mi:fourCharacterID>SIO5</mi:fourCharacterID> <mi:monumentInscription>SIO5 ECCS</mi:monumentInscription> <mi:iersDOMESNumber>40460M006</mi:iersDOMESNumber> </siteIdentification>
<siteLocation> <mi:city>La Jolla</mi:city> <mi:state>California</mi:state> <mi:country>USA</mi:country> <mi:approximatePositionITRF> <mi:xCoordinateInMeters>-2456115.13</mi:xCoordinateInMeters> <mi:yCoordinateInMeters>-4768905.79</mi:yCoordinateInMeters> <mi:zCoordinateInMeters>3439232.44</mi:zCoordinateInMeters> <mi:latitude-North>+325024.00</mi:latitude-North> <mi:longitude-East>-1171500.00</mi:longitude-East> <mi:elevation-m_ellips.>185.53</mi:elevation-m_ellips.> </mi:approximatePositionITRF> </siteLocation>
<gnssReceiver> <equip:receiverType>ASHTECH Z-XII3</equip:receiverType> <equip:satelliteSystem>GPS</equip:satelliteSystem> <equip:serialNumber>LP02814</equip:serialNumber> <equip:firmwareVersion>CD00</equip:firmwareVersion> <equip:dateInstalled>2002-05-15T00:00Z</equip:dateInstalled> <equip:dateRemoved>2003-01-09T00:00Z</equip:dateRemoved> </gnssReceiver>
<gnssAntenna> <equip:antennaType>ASH701945B_M</equip:antennaType> <equip:serialNumber>CR519991867</equip:serialNumber> <equip:antennaReferencePoint>BPA</equip:antennaReferencePoint> <equip:marker-arpUpEcc.>0.0083</equip:marker-arpUpEcc.> <equip:dateInstalled>2002-05-15T00:00Z</equip:dateInstalled> <equip:dateRemoved>2004-09-29T00:00Z</equip:dateRemoved> <equip:notes></equip:notes> </gnssAntenna>
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Portal: INDIGO
SOPAC and INDIGO Utilize IT resources and JPL collaboration in support of
IGS
Potential development areas: Include all GNSS sites at CDDIS/JPL/IGN Extend GPS Explorer capabilities to include SLR/VLBI/DORIS
• Site mapping• Common data exploration/visualization tools
Global Seamless Archive Center (publication of data archive holdings)
• Incorporate GPS analysis products• Web services wrapper
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GPS Explorer - IGS AC Workshop - Miami 2008
GPS Explorer Portal: Future
Focus on IGS support via INDIGO How can GPSE serve as common interface for user access to
data/metadata? Add “Products” tab Portal name change?
Evaluate/implement feedback from user survey, NASA website developers
Ingest/display new data sources
Cross-browser compatibility
Interactive Strain Maps
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GPS Explorer - IGS AC Workshop - Miami 2008
Conclusion/Discussion
Feedback GPS Explorer: http://geoapp.ucsd.edu Click on “Feature Requests” at top of any
page pjamason-at-ucsd.edu
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Login Page
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Site Selection
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Site Data Visualization
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GPS Site Processed Coordinates
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GPS Site Position Time Series
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GPS Site Velocities
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Strain Resources
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Filter Time Series: Job Setup
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Filter Time Series: Output