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MonitoringPoint is defined as a specialisation of the OM SF_SamplingPoint and thus also inherits the properties of this feature type. SF_SamplingPoint restricts the SF_SamplingFeature’s
shape property to be a point. The UML for MonitoringPoint is shown in Figure 31.
Figure 31 - MonitoringPoint
The properties of sampling points are described in the following sections.
9.19.1 shape SF_SamplingFeature
The shape property describes the geometry of the sampling feature. For a MonitoringPoint this is a point.
9.19.2 sampledFeature SF_SamplingFeature
This property provides a reference to the ultimate domain feature that is being observed. The type of this feature will depend on the type of sampling feature being used; some examples are shown
in Table 7.
«FeatureType»
MonitoringPoint
+ descriptionReference :GenericName [0..] + gaugeDatum :CD_VerticalDatum [0..]
+ monitoringType :GenericName [0..] ::SF_SpatialSamplingFeature
+ positionalAccuracy :DQ_PositionalAccuracy [0..2] ::SF_SamplingFeature
+ parameter :NamedValue [0..] + lineage :LI_Lineage [0..1]
GFI_Feature «FeatureType»
SF_SamplingFeature
+ parameter :NamedValue [0..] + lineage :LI_Lineage [0..1]
«DataType»
TimeZone
+ zoneAbbreviation :CharacterString [0..1] + zoneOffset :CharacterString
«FeatureType»
SF_SpatialSamplingFeature
GFI_Feature «informative»
GFI_DomainFeature
«datatype»
CI_ResponsibleParty
+ individualName :CharacterString [0..1] + organisationName :CharacterString [0..1]
+ positionName :CharacterString [0..1] + contactInfo :CI_Contact [0..1]
+ role :CI_RoleCode «FeatureType»
SF_SamplingPoint
GM_Primitive «type»
GM_Point
«CodeList»
CI_RoleCode
+ resourceProvider + custodian
+ owner + user
+ distributor + originator
+ pointOfContact + principalInvestigator
+ processor + publisher
+ author
+timeZone 0..1
+relatedParty 0..
+daylightSavingsTimeZone 0..1
0.. +relatedSamplingFeature 0..
Intention «informative»
+sampledFeature 1..
Geometry +shape
OGC WaterML 2.0 OGC 10-126r3
Copyright © 2012 Open Geospatial Consortium 63
9.19.3 lineage SF_SamplingFeature
Used to describe the history of a sampling point. Examples include replacement of equipment, previous names etc. The lineage type from ISO19115 allows for either simple statements of
history, or the definition of chained sources and process steps that have occurred to the sampling feature.
9.19.4 parameter SF_SamplingFeature
