GPS Explorer Overview and Extension to INDIGO http
- Slides: 21
GPS Explorer: Overview and Extension to INDIGO http: //geoapp. ucsd. edu Paul Jamason | Scripps Orbit and Permanent Array Center (SOPAC ) IGS Analysis Center Workshop, Miami, 2008
GPS Explorer Background n NASA REASo. N project to provide GPS data products/services using new web technologies/standards n n n project overview: http: //reason. scign. org java-based web portal; web 2. 0 (mapping, inter-portlet communication) develop common formats (xml) and methods (web services) for improved metadata and data exchange Geophysical Resource Web Services: http: //reason. scign. org/scign. Data. Portal/grws. Summary. jsp NASA MOSES project to allow users to perform modeling in a portal context n application of various time series models
GPS Explorer Framework n Uses the n n JSR-168 compliant portlets (java-based windows in portal with user controls; distributable to other portals) user logins; save data/results for future viewing standard look/feel across pages; easy configuration Employs a workflow/dashboard approach n users select and save groups of GPS sites via mapping portlet. Data queries, modeling operations are performed throughout portal on saved groups. n n Inter-portlet communication Dynamic content produced via calls to back-end web services
GPS Explorer Portal: Mapping n SOMI: Scripps Online Mapping Interface n n n University of Minnesota Map. Server; input data layers stored at SOPAC (e. g. , fault lines) interactive velocity vectors users can draw bounding boxes to select sites recent performance optimization Migrating to Open. Layers n n open source API user community utilize non-google data layers Map. Server; tile caching
GPS Explorer Portal: Products n Processed GPS coordinates n n n GPS Time Series n n n layer time series from different sources/sites via Java Applet display time series dynamically by clicking sites on map Velocities n n millions of xyz coordinates from SOPAC/JPL/REASON combination/PBO dynamically queryable and exportable to urls view/layer velocity vectors for various sources/reference frames Strain Maps n under development
(GPS Explorer Web Demonstration)
GPS Explorer Portal: Geophysical Resource Web Services n Standardized approach to data submission/retrieval n n Inter-agency data exchange Use XML standards n Geography Markup Language (GML): represent features/geometry/reference systems/time • observation collections; filter encoding • transfer XML via SOAP/web services • alternatives: JSON, REST n Advantages: n n Independent server-side code. call web services from other web pages/sites, command-line utilities, etc. Adaptable - e. g. , REASo. N -> INDIGO: new web services
XML and Geodesy at SOPAC: IGS Site Logs n Overview: http: //sopac. ucsd. edu/projects/xml
Sample XML IGS Site Log <igs. Site. Log xmlns="http: //sopac. ucsd. edu/ns/geodesy/doc/igs. Site. Log/2004" xmlns: mi="http: //sopac. ucsd. edu/ns/geodesy/doc/igs. Site. Log/monument. Info/2004" xmlns: equip="http: //sopac. ucsd. edu/ns/geodesy/doc/igs. Site. Log/equipment/2004" xsi: schema. Location="http: //sopac. ucsd. edu/ns/geodesy/doc/igs. Site. Log/2004 http: //sopac. ucs xmlns: xsi="http: //www. w 3. org/2001/XMLSchema-instance"> <site. Identification> <mi: site. Name>Scripps 5 - Mt. Soledad</mi: site. Name> <mi: four. Character. ID>SIO 5</mi: four. Character. ID> <mi: monument. Inscription>SIO 5 ECCS</mi: monument. Inscription> <mi: iers. DOMESNumber>40460 M 006</mi: iers. DOMESNumber> </site. Identification> <site. Location> <mi: city>La Jolla</mi: city> <mi: state>California</mi: state> <mi: country>USA</mi: country> <mi: approximate. Position. ITRF> <mi: x. Coordinate. In. Meters>-2456115. 13</mi: x. Coordinate. In. Meters> <mi: y. Coordinate. In. Meters>-4768905. 79</mi: y. Coordinate. In. Meters> <mi: z. Coordinate. In. Meters>3439232. 44</mi: z. Coordinate. In. Meters> <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: approximate. Position. ITRF> </site. Location> <gnss. Receiver> <equip: receiver. Type>ASHTECH Z-XII 3</equip: receiver. Type> <equip: satellite. System>GPS</equip: satellite. System> <equip: serial. Number>LP 02814</equip: serial. Number> <equip: firmware. Version>CD 00</equip: firmware. Version> <equip: date. Installed>2002 -05 -15 T 00: 00 Z</equip: date. Installed> <equip: date. Removed>2003 -01 -09 T 00: 00 Z</equip: date. Removed> </gnss. Receiver> <gnss. Antenna> <equip: antenna. Type>ASH 701945 B_M</equip: antenna. Type> <equip: serial. Number>CR 519991867</equip: serial. Number> <equip: antenna. Reference. Point>BPA</equip: antenna. Reference. Point> <equip: marker-arp. Up. Ecc. >0. 0083</equip: marker-arp. Up. Ecc. > <equip: date. Installed>2002 -05 -15 T 00: 00 Z</equip: date. Installed> <equip: date. Removed>2004 -09 -29 T 00: 00 Z</equip: date. Removed> <equip: notes></equip: notes> </gnss. Antenna>
GPS Explorer Portal: INDIGO n SOPAC and INDIGO n Inter-service Data Integration for Geodetic Operations • systems enabling the simultaneous use of multiple space geodetic techniques n n Utilize IT resources and JPL collaboration in support of IGS Potential development areas: n n n Include all GNSS sites at CDDIS/JPL/IGN (GSAC) Extend GPS Explorer capabilities to include SLR/VLBI/DORIS • Site mapping • Common data exploration/visualization tools Incorporate GPS products into (next-generation? ) GSAC • Provide web services wrapper to GSAC
GPS Explorer Portal: Future n Focus on IGS support via INDIGO n n n How can GPSE serve as common interface for user access to data/metadata? Add “Products” tab Portal name change? n Evaluate/implement feedback from user survey, NASA website developers n Ingest/display new data sources n Cross-browser compatibility n n n Javascript development Evaluate other portal frameworks (JBOSS) Interactive Strain Maps
Login Page
Site Selection
Site Data Visualization
GPS Site Processed Coordinates
GPS Site Position Time Series
GPS Site Velocities
Strain Resources
Filter Time Series: Job Setup
Filter Time Series: Output
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