® the sampled feature of hydrologic observation hydrology domain working group at the ogc/tc...

®

The sampled feature of The sampled feature of hydrologic observationhydrologic observation

Hydrology Domain Working Group at the OGC/TC Meeting, Austin, 2012, Mar 19-23

Irina Dornblut, Global Runoff Data Centre of WMORob Atkinson, CSIRO Land and Water

OGC®

Copyright © 2012, Open Geospatial Consortium, Inc

SampledFeatureSampledFeature of hydrologic observation 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 »

OGC®


Hydrologic Observation 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 …

OGC®

Copyright © 2012, Open Geospatial Consortium, Inc 4

MEASUREMENT

OBIDOS(station)

180.000 m³/s


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 …

OGC®



5

MEASUREMENT

OBIDOS(station)

180.000 m³/s


Gauging SENSOR “abc”

(instrument)

Procedure: INSTRUMENT


… applying a procedure,SamplingFeature:

MONITORING STATION


DomainFeature: (entire) RIVER



UoM: UoM_FLOW

OGC®



6

MEASUREMENT

OBIDOS(station)


SENSOR(instrument)




DomainFeature: BASIN


AMAZON basin


… applying a procedure,


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

OGC®



7

MEASUREMENT

AIRPORT XYZ(station)

COLORADO RIVER(accumulating water body)

RAIN GAUGE(instrument)



SampledFeature: PRECIPITATION

DomainFeature: BASIN

HydrologicObservable:DISCHARGE

COLORADObasin


… 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

OGC®


class Context diagram: GFI_Feature

«FeatureTyp...GFI_Feature

«FeatureType»observ ation::

OM_Observ ation

«FeatureType»samplingFeature::SF_SamplingFeature

«informative»GFI_DomainFeature

«metaclass»General Feature Model::

GF_FeatureType

«instanceOf»

+propertyValueProvider 0..*Domain

+featureOfInterest

1

0..*

+relatedObservation 0..*

«informative»

Intention

+sampledFeature

1..*

Name:Package:Version:Author:

Context diagram: GFI_Feature«requirementsClass» General Feature Instance1.0Simon Cox

GFI_Feature (ISO 19159:2011, O&M)GFI_Feature (ISO 19159:2011, O&M)

8

any feature type associated with a domain

of discourse

carries the observed property

OGC®


SF_SamplingFeature (ISO 19159:2011, O&M)SF_SamplingFeature (ISO 19159:2011, O&M)

9




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



feature intended to sample some ‚real-

world‘ object

OGC®





OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



GFI_DomainFeature (ISO 19159:2011, O&M)GFI_DomainFeature (ISO 19159:2011, O&M)

10

‚real-world‘ object whose properties are under observation

OGC®





OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



PhenomenonPhenomenon (ISO 19159:2011, O&M) (ISO 19159:2011, O&M)

11

+observedProperty

Phenomenon

ObservableProperty(under development)

properties under observation

OGC®


featureOfInterest – featureOfInterest – hydrologic exampleshydrologic examples

12




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier

Snow gauge

e.g. snow depth

+observedProperty

+observableProperty

OGC®



13




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier Aquifer

Measuring

PointObservation

Well

e.g. groundwater

table

+observedProperty

+observableProperty

OGC®



14




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier Aquifer Lake

Measuring

PointExtracting

WellGauging

Site

e.g. water level

+observedProperty

+observableProperty

River

OGC®



15




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier Aquifer Lake River

Measuring

PointExtracting

WellObserving

PostCross-Section

e.g. sediment discharge

+observedProperty

+observableProperty

Channel

OGC®



16




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier Aquifer Lake River Basin

Measuring

PointExtracting

WellObserving

PostGauging

StationHydrometric

Station

e.g. freshwater flux

+observedProperty

+observableProperty

OGC®



17




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



Glacier Aquifer Lake River Basin Reporting

Region

Measuring

PointExtracting

WellObserving

PostGauging

StationHydrometric

StationReference

Station

e.g. ecological potential

+observedProperty

+observableProperty

OGC®



18




OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*




Region Hydrologic Feature

Measuring

PointExtracting

WellObserving

PostGauging

StationHydrometric

StationReference

StationSampling

Feature

+observedProperty

+observableProperty

Observable

OGC®


Sampling Feature (Hydrology)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

PointExtracting

WellObserving

PostGauging

StationHydrometric

StationReference

StationMonitoring

Station

OGC®

Copyright © 2012, Open Geospatial Consortium, Inc 20

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


Region Hydrologic Feature

Sampled Feature (Hydrology)Sampled Feature (Hydrology)

OGC®


Hydrologic Feature Model (Hydrologic Feature Model (HY_FeaturesHY_Features))

21

Glacier Aquifer …… River

Basin Reporting

Region

Measuring

PointExtracting

WellObserving

PostGauging

StationHydrometric

StationReference

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, …

OGC®



22

Hydrology phenomenon (real world)

Unit of study/reporting (abstract notion)

OGC®



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

OGC®



24

Outfall: topological concept

OGC®



25

Outfall: logic point

OGC®



26

OGC®



27

OGC®



28



OGC®



29


Unit of study/reporting (abstract notion)Application-specific - Independent from scales - Across sub-disciplines

OGC®



30



Glacier Aquifer …… River

Basin Reporting

Region

Measuring

PointExtracting

WellObserving

PostGauging

StationHydrometric

StationReference

Station

OGC®


sampledFeaturesampledFeature of hydrologic observation of hydrologic observation

31

?

OGC®





OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



domainFeaturedomainFeature of hydrologic observation of hydrologic observation

32

OGC®





OM_Observ ation




GF_FeatureType

«instanceOf»


+featureOfInterest

1

0..*


«informative»

Intention

+sampledFeature

1..*



domainFeaturedomainFeature of hydrologic observation of hydrologic observation

33

OGC®


sampledFeaturesampledFeature of hydrologic observation of hydrologic observation

34

?

ISO19156(2011):O&MISO19159:O&M

OGC®


Domain-specific instance of Domain-specific instance of GF_FeatureTypeGF_FeatureType

35

OGC®


required component of required component of Hydrologic MetadataHydrologic Metadata

36

Hydrologic Metadata, e.g.

of

GTN-H / WIGOS

GRDC

OGC®


Discussion paper OGC 11-039r2Discussion paper OGC 11-039r2

HY_Features: a Common Hydrologic Feature Model

1 Scope

2 Conformance

3 Normative references

4 Terms and definitions

5 Conventions

6 Requirements for a Common Hydrologic Feature Model

7 Common Hydrologic Feature Model - HY_Features

8 Further work9 References

37

OGC®


HY_Features - HY_Features - future workfuture 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

OGC®


HY_Features HY_Features – where available ?– 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)

– XML schema definitions at OGC schema repository (http://schemas.opengis.net/hydrology/) – asap

– 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

OGC®


Discussion paper OGC 11-039r2Discussion paper OGC 11-039r2

HY_Features: a Common Hydrologic Feature Model

1 Scope

2 Conformance

3 Normative references

4 Terms and definitions

5 Conventions

6 Requirements for a Common Hydrologic Feature Model

7 Common Hydrologic Feature Model - HY_Features

8 Further work9 References

40

® the sampled feature of hydrologic observation hydrology domain working group at the ogc/tc...

Documents