A crucial task in sensor web based analysis of spatio-temporal data is to get an overview on the spatial and temporal extent for which data is available. This work presents an approach for accessing the necessary information about the availability of temporally structured sensor data from sensor web services. We show different kinds of data availability visualization. Based on the required values we specify a new generic sensor web service interface operation that constitutes the foundation for realizing the presented visualization methods.

1. Visualizing the Availability of Temporally Structured Sensor Data Daniel Nüst (University of Münster)

2. WHY?

3. SENSOR DATA? WHY visualize

4. WHY AVAILABILITY OF TEMPORALLY STRUCTURED SENSOR DATA? visualize the

5. EXPERIMENT!

6. Location: Münster; timestamps: temperature observations; format: ISO 8601; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; Experiment

7. Location: Münster; timestamps: temperature observations; format: ISO 8601; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; 2010-04-01T23:00:00Z; 2010-04-02T00:00:00Z; 2010-04-02T01:00:00Z; 2010-04-02T02:00:00Z; 2010-04-02T03:00:00Z; 2010-04-02T04:00:00Z; 2010-04-02T05:00:00Z; 2010-04-02T06:00:00Z; 2010-04-02T07:08:08Z; 2010-04-02T08:00:00Z; 2010-04-02T09:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T10:00:00Z; 2010-04-02T11:00:00Z; 2010-04-02T12:00:00Z; 2010-04-01T13:00:00Z; 2010-04-01T14:00:00Z; 2010-04-01T15:00:00Z; 2010-04-01T16:00:00Z; 2010-04-01T17:00:00Z; 2010-04-01T18:00:00Z; 2010-04-01T19:00:00Z; 2010-04-01T20:00:00Z; 2010-04-01T21:00:00Z; 2010-04-01T22:00:00Z; Experiment

8. Done.

9. Location: Münster; timestamps: temperature observations; format: ISO 8601; 2010-04-01T13:00:00Z; 11 563 200 bytes UTF-8: 22 bytes Done? 11,027526855 MB

10. DATA „ completely covered“ intervals segmentation algorithm

11. DATA visualization method comprehensible information

12. © www.phdcomics.com Use Case: Researcher

13. THE TASK

14. © dwstucke @ flickr © IPPAR via http://en.wikipedia.org/wiki/File:Pa%C3%A7o_dos_Duques_1.jpg urn:ogc: object: feature: WMOStation: 418580

15. The Task

16. The Task

17. t

20. visualizations | parameters | interface Approach

21. Timeline

23. Calendar Sheet

25. Circular Bar Graph

27. Parameters list of time intervals features sensors phenomena density information aggregation parameters

28. Service Interface

29. Modelling Decisions feature phenomenon sensor

30. Service Interface

31. Summary

32. Where to go now? © edenandjosh @ flickr

33. Thank you!

34. contact: daniel.nuest@wwu.de