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E2E Spatial Infrastructures The South Esk Hydrological Sensor Web

E2E Spatial Infrastructures The South Esk Hydrological Sensor Web. Water for a Healthy Country Flagship. Andrew Terhorst Project Lead: Real-Time Water Information Systems 6 December 2010. The Problem. South Esk River Catchment. Highly variable climate. Flood prone. Unreliable flows.

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E2E Spatial Infrastructures The South Esk Hydrological Sensor Web

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  1. E2E Spatial InfrastructuresThe South Esk Hydrological Sensor Web Water for a Healthy Country Flagship Andrew Terhorst Project Lead: Real-Time Water Information Systems 6 December 2010

  2. The Problem E2E Spatial Infrastructures Workshop 6 December 2010

  3. South Esk River Catchment Highly variable climate Flood prone Unreliable flows Continuous monitoring of river flow E2E Spatial Infrastructures Workshop 6 December 2010

  4. Theoretical Model of Situation Awareness E2E Spatial Infrastructures Workshop 6 December 2010

  5. OODA Framework learning improving doing OBSERVE ORIENT DECIDE ACT Knowledge Sensing Observations Interpretation Information Hypothesis Action refining assessing E2E Spatial Infrastructures Workshop 6 December 2010

  6. Current Approach Numerical Models Decision Support Tools Application Layer Physical Sensors, Observation Archives Sensor Layer E2E Spatial Infrastructures Workshop 6 December 2010

  7. Future Approach Numerical Models Decision Support Tools Semantic Broker Application Layer Sensor Web Services Layer Physical Sensors, Observation Archives Sensor Layer E2E Spatial Infrastructures Workshop 6 December 2010

  8. Sensor Web Definition A Sensor Web is a coordinated observation infrastructure composed of a distributed collection of resources (e.g. sensors, platforms, models, communications infrastructure) that can collectively behave as a single, autonomous, task-able, dynamically adaptive and reconfigurable observing system that provides raw and processed data, along with associated metadata, via a set of standards-based service-oriented interfaces. E2E Spatial Infrastructures Workshop 6 December 2010

  9. OGC Sensor Web Enablement (SWE) CS-W Encodings Services TML SensorML O&M WNS SOS SES SPS SweCommon E2E Spatial Infrastructures Workshop 6 December 2010

  10. South Esk Hydrological Sensor Web E2E Spatial Infrastructures Workshop 6 December 2010

  11. Google Maps SOS Client E2E Spatial Infrastructures Workshop 6 December 2010

  12. WaterML2.0 E2E Spatial Infrastructures Workshop 6 December 2010

  13. Vocabularies WaterML2.0 Data point WaterML2.0 defined: http://www.opengis.net/def/timeseriesType/WaterML/2.0/Continuous http://www.opengis.net/def/timeseriesType/WaterML/2.0/Discontinuous … Data type Processing code OPEN (Some analysis has occurred…) Qualifier OPEN Units of measure Recommended: Unified Code for Units of Measure (UCUM): http://www.unitsofmeasure.org/ WaterML2.0 defined: http://www.opengis.net/WaterML/2.0/def/quality/good http://www.opengis.net/WaterML/2.0/def/quality/suspect … Quality E2E Spatial Infrastructures Workshop 6 December 2010

  14. Levels of Interoperability Specificity Flexibility Observation & Measurements I know that an observation was made using this process on a phenomenon, with a result Observation & Measurements + a vocabulary agreement I understand the phenomenon you measured WaterML2.0 sans vocabulary agreement I know that an observation was made at a measuring station, using a sensor, and a time series was produced WaterML2.0 + partial vocabulary agreement I know that an observation was made using a measuring station, a sensor, and a time series is produced WaterML2.0 + full vocabulary agreement I can understand the observations and import into my system directly, allowing full mapping to internal representation E2E Spatial Infrastructures Workshop 6 December 2010

  15. Provenance Definition Provenance of a resource is a record that describes entities and processes involved in producing and delivering or otherwise influencing that resource. Provenance provides a critical foundation for assessing authenticity, enabling trust, and allowing reproducibility. Provenance assertions are a form of contextual metadata and can themselves become important records with their own provenance. E2E Spatial Infrastructures Workshop 6 December 2010

  16. Provenance Information Model Domain W3C Sensor Ontology WaterML 2.0 Lineage Process Proof Mark-Up Language Proof Mark-Up Language E2E Spatial Infrastructures Workshop 6 December 2010

  17. Harvesting Provenance Continuous Flow Forecasting P-Store P-Store P-Store P-Store Query Query Query Query Query E2E Spatial Infrastructures Workshop 6 December 2010

  18. Provenance Information E2E Spatial Infrastructures Workshop 6 December 2010

  19. Conclusions • Need well-documented use cases at appropriate level of granularity i.e. use design by contract methodology • Architectural design should: • Promote re-use/re-purposing of data and infrastructure • Facilitate knowledge management • Enable discovery and exploration of web-based resource • SWE standards are a moving target and complexity is an issue • Provenance enables/promotes data re-use/re-purposing • Linked open data approaches require serious consideration E2E Spatial Infrastructures Workshop 6 December 2010

  20. Tasmanian ICT Centre Andrew Terhorst Senior Research Scientist Phone: +61 3 6232 5541 Email: andrew.terhorst@csiro.au Web: www.csiro.au/ict Thank you Contact UsPhone: 1300 363 400 or +61 3 9545 2176Email: Enquiries@csiro.au Web: www.csiro.au

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