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® The sampled feature of hydrologic observation Hydrology Domain Working Group at the OGC/TC Meeting, Austin, 2012, Mar 19-23 Irina Dornblut, Global Runoff.

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Presentation on theme: "® The sampled feature of hydrologic observation Hydrology Domain Working Group at the OGC/TC Meeting, Austin, 2012, Mar 19-23 Irina Dornblut, Global Runoff."— Presentation transcript:

1 ® The sampled feature of hydrologic observation Hydrology Domain Working Group at the OGC/TC Meeting, Austin, 2012, Mar 19-23 Irina Dornblut, Global Runoff Data Centre of WMO Rob Atkinson, CSIRO Land and Water

2 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc SampledFeature of hydrologic observation 2 1.Observation relationships (outline) 2.Examples of domain-specific featureOfInterest 3.Identification of hydrologic features (HY_Features) 4.OGC 11-039r2 Discussion paper: « HY_Features: a Common Hydrologic Feature Model »

3 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Observation 3 Observation, spec. MEASUREMENT 6.700 km FeatureOfInterest: RIVER HydrologicObservable: RIVER LENGTH Phenomeonon: LENGTH AMAZON RIVER (water body) UoM: UoM LENGTH event, e.g. measurement, where the value of a property of a particular feature of interest is determined …

4 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc4 MEASUREMENT OBIDOS (station) 180.000 m³/s AMAZON RIVER (water body) DomainFeature: (entire) RIVER HydrologicObservable: RIVER DISCHARGE SamplingFeature: MONITORING STATION SampledFeature: RIVER UoM: UoM_FLOW … using a sampling feature, Phenomenon: FLOW (V T -1 ) Hydrologic Observation Hydrologic Observation determines the value of a property of a particular hydrologic feature of interest …

5 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Observation Hydrologic Observation determines the value of a property of a particular hydrologic feature of interest … 5 MEASUREMENT OBIDOS (station) 180.000 m³/s AMAZON RIVER (water body) Gauging SENSOR “abc” (instrument) Procedure: INSTRUMENT … using a sampling feature, … applying a procedure, SamplingFeature: MONITORING STATION SampledFeature: RIVER DomainFeature: (entire) RIVER HydrologicObservable: RIVER DISCHARGE Phenomenon: FLOW (V T -1 ) UoM: UoM_FLOW

6 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Observation Hydrologic Observation determines the value of a property of a particular hydrologic feature of interest … 6 MEASUREMENT OBIDOS (station) AMAZON RIVER (water body) SENSOR (instrument) Procedure: INSTRUMENT SamplingFeature: MONITORING STATION SampledFeature: RIVER DomainFeature: BASIN HydrologicObservable: RIVER DISCHARGE AMAZON basin … using a sampling feature, … applying a procedure, Phenomenon: FLOW (V T -1 ) 7.000 km³/a 180.000 m³/s HydrologicObservable: FRESHWAtER FLUX … in place of a property of the „ultimate subject of observation“ (O&M). UoM: UoM_FLOW Representation: WATER BODY

7 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Observation Hydrologic Observation determines the value of a property of a particular hydrologic feature of interest … 7 MEASUREMENT AIRPORT XYZ (station) COLORADO RIVER (accumulating water body) RAIN GAUGE (instrument) Procedure: INSTRUMENT SamplingFeature: MONITORING STATION SampledFeature: PRECIPITATION DomainFeature: BASIN HydrologicObservable: DISCHARGE COLORADO basin … using a sampling feature, … applying a procedure, Phenomenon: FLOW, HEIGHT mm / km²... m3 s HydrologicObservable: AERIAL PRECIP … in place of a property of the „ultimate subject of observation“ (O&M). UoM: UoM_FLOW, UoM_HEIGHT RAINFALL Representation: Water Body

8 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc GFI_Feature (ISO 19159:2011, O&M) 8 any feature type associated with a domain of discourse carries the observed property

9 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc SF_SamplingFeature (ISO 19159:2011, O&M) 9 feature intended to sample some ‚real- world‘ object

10 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc GFI_DomainFeature (ISO 19159:2011, O&M) 10 ‚real-world‘ object whose properties are under observation

11 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Phenomenon (ISO 19159:2011, O&M) 11 +observedProperty Phenomenon ObservableProperty (under development) properties under observation

12 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 12 Glacier Snow gauge e.g. snow depth +observedProperty +observableProperty

13 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 13 Glacier Aquifer Measuring Point Observation Well e.g. groundwater table +observedProperty +observableProperty

14 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 14 Glacier Aquifer Lake Measuring Point Extracting Well Gauging Site e.g. water level +observedProperty +observableProperty River

15 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 15 Glacier Aquifer Lake River Measuring Point Extracting Well Observing Post Cross-Section e.g. sediment discharge +observedProperty +observableProperty Channel

16 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 16 Glacier Aquifer Lake River Basin Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station e.g. freshwater flux +observedProperty +observableProperty

17 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 17 Glacier Aquifer Lake River Basin Reporting Region Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station Reference Station e.g. ecological potential +observedProperty +observableProperty

18 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc featureOfInterest – hydrologic examples 18 Glacier Aquifer Lake River Basin Reporting Region Hydrologic Feature Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station Reference Station Sampling Feature +observedProperty +observableProperty Observable

19 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Sampling Feature (Hydrology) 19 OGC® WaterML 2.0: Part 1- Timeseries Candidate OGC® standard (OGC 10-126r2) Definition of one special type of a spatial sampling feature, a MonitoringPoint, Description of an in-situ point of observation (e.g. gauging station). Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station Reference Station Monitoring Station

20 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc20 HY_Features (OGC 11-039r2) Semantic relationships of features that are objects of study and reporting in hydrology, Identification of these features independent from scales, Link the multiple concepts of the hydrology phenomenon to the shared unit of study or reporting Glacier Aquifer Lake River Basin Reporting Region Hydrologic Feature Sampled Feature (Hydrology)

21 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 21 Glacier Aquifer …… River Basin Reporting Region Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station Reference Station Hydrology phenomenon: waters above, on and below the land surface, accumulated in water bodies or aquifers, confined by the occupied landform, … (real world) Unit of study / reporting: catchment, spec. basin (abstract notion) Observation: Hydrometric stations, observing posts, …

22 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 22 Hydrology phenomenon (real world) Unit of study/reporting (abstract notion)

23 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 23 Waters Accumulated in water bodies and bearing aquifers Aggregated in a hydrographic network Confined by the occupied landforms Observed using sampling features Represent Basin: Physiographic unit determined by a common outlet (outfall) into which all waters flow Catchment: Reporting unit, that may be, or may not be, hydrologically determined

24 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 24 Outfall: topological concept

25 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 25 Outfall: logic point

26 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 26

27 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 27

28 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 28 Hydrology phenomenon (real world) Unit of study/reporting (abstract notion)

29 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 29 Hydrology phenomenon (real world) Unit of study/reporting (abstract notion) Application-specific - Independent from scales - Across sub-disciplines

30 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Hydrologic Feature Model (HY_Features) 30 Hydrology phenomenon (real world) Unit of study/reporting (abstract notion) Glacier Aquifer …… River Basin Reporting Region Measuring Point Extracting Well Observing Post Gauging Station Hydrometric Station Reference Station

31 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc sampledFeature of hydrologic observation 31 ?

32 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc domainFeature of hydrologic observation 32

33 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc domainFeature of hydrologic observation 33

34 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc sampledFeature of hydrologic observation 34 ? ISO19156(2011):O&M ISO19159:O&M

35 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Domain-specific instance of GF_FeatureType 35

36 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc required component of Hydrologic Metadata 36 Hydrologic Metadata, e.g. of GTN-H / WIGOS GRDC

37 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Discussion paper OGC 11-039r2 HY_Features: a Common Hydrologic Feature Model 1Scope 2Conformance 3Normative references 4Terms and definitions 5Conventions 6Requirements for a Common Hydrologic Feature Model 7Common Hydrologic Feature Model - HY_Features 8Further work 9References 37

38 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc HY_Features - future work Alignment of concepts –HY_RiverPositioningSystem and ISO19111, ISO19133 –HY_HydrometicNetwork and WaterML2 –HY_SubsurfaceWater and GroundwaterML –HY_HydroObservable and Phenomenon (O&M) Integration in the OGC Feature landscape Integration in the WIGOS Metadata concept 38

39 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc HY_Features – where available ? –Discussion Paper ( OGC 11-039r2, 24 Feb 2012 ) –HTML documentation ( OGC 12-021, 23 Feb 2012 ) –XML schema definitions at SVN repository at SDSC ( https://svn.sdsc.edu/repo/WaterML/GRDC/trunk ) https://svn.sdsc.edu/repo/WaterML/GRDC/trunk –XML schema definitions at OGC schema repository (http://schemas.opengis.net/hydrology/) – asaphttp://schemas.opengis.net/hydrology/ –Atkinson, R., I. Dornblut and D. Smith, An international standard conceptual model for sharing references to hydrologic features. Journal of Hydrology, 2012, 424- 425(2012): p.24-36 Thank you for attention! 39

40 OGC ® Copyright © 2012, Open Geospatial Consortium, Inc Discussion paper OGC 11-039r2 HY_Features: a Common Hydrologic Feature Model 1Scope 2Conformance 3Normative references 4Terms and definitions 5Conventions 6Requirements for a Common Hydrologic Feature Model 7Common Hydrologic Feature Model - HY_Features 8Further work 9References 40

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