Name	Notation	Description	Types	Status
Altitude/depth	AltitudeOrDepth	Altitude/depth	Register , Container , Collection	stable
Application areas	ApplicationArea	Application areas	Collection , Register , Container	stable
Climate zone	ClimateZone	Climate zone	Register , Collection , Container	stable
Control location	ControlLocation	Control location	Container , Register , Collection	stable
Control standard type	ControlStandardType	Control standard type	Collection , Register , Container	stable
Coordinates reference	CoordinateReferenceSystem	Coordinates reference	Collection , Register , Container	stable
Data communication method	DataCommunicationMethod	Data communication method	Register , Container , Collection	stable
Data format	DataFormat	Data format	Container , Collection , Register	stable
Data policy/use constraints	DataPolicy	Data policy/use constraints	Register , Container , Collection	stable
Domain	Domain	Domain	Collection , Register , Container	stable
Events at station/platform	EventAtFacility	Events at station/platform	Container , Register , Collection	stable
Exposure of instrument	Exposure	Exposure of instrument	Container , Register , Collection	stable
Station/platform type	FacilityType	Station/platform type	Container , Collection , Register	stable
Frequency use of electromagnetic radiation	FrequencyUse	Frequency use of electromagnetic radiation	Register , Container , Collection	stable
Geometry	Geometry	Geometry	Collection , Register , Container	stable
Coordinates source/service	GeopositioningMethod	Coordinates source/service	Register , Collection , Container	stable
Instrument control result	InstrumentControlResult	Instrument control result	Register , Container , Collection	stable
Instrument operating status	InstrumentOperatingStatus	Instrument operating status	Register , Container , Collection	stable
Level of data	LevelOfData	Level of data	Collection , Container , Register	stable
Local topography	LocalTopography	Local topography	Collection , Container , Register	stable
Matrix	Matrix	Matrix	Container , Register , Collection	stable
Status of observation	ObservationStatus	Status of observation	Collection , Container , Register	stable
Layer of observation	ObservedLayer	Layer of observation	Register , Container , Collection	stable
Observed variable - measurand (atmosphere)	ObservedVariableAtmosphere	Observed variable - measurand (atmosphere)	Collection , Container , Register	stable
Observed variable - measurand (earth)	ObservedVariableEarth	Observed variable - measurand (earth)	Register , Container , Collection	stable
Observed variable - measurand (ocean)	ObservedVariableOcean	Observed variable - measurand (ocean)	Collection , Container , Register	stable
Observed variable - measurand (outer space)	ObservedVariableOuterSpace	Observed variable - measurand (outer space)	Collection , Container , Register	stable
Observed variable - measurand (terrestrial and hydrological)	ObservedVariableTerrestrial	Observed variable - measurand (terrestrial and hydrological)	Container , Collection , Register	stable
Measurement/observing method (atmosphere)	ObservingMethodAtmosphere	Measurement/observing method (atmosphere)	Container , Collection , Register	stable
Measurement/observing method (ocean)	ObservingMethodOcean	Measurement/observing method (ocean)	Collection , Container , Register	stable
Measurement/observing method (terrestrial and hydrological)	ObservingMethodTerrestrial	Measurement/observing method (terrestrial and hydrological)	Collection , Container , Register	stable
Particle size range	ParticleSizeRange	Particle size range	Collection , Register , Container	stable
Polarization of electromagnetic radiation	Polarization	Polarization of electromagnetic radiation	Collection , Container , Register	stable
Programme/network affiliation	ProgramAffiliation	Programme/network affiliation	Container , Collection , Register	stable
Purpose of frequency use	PurposeOfFrequencyUse	Purpose of frequency use	Collection , Container , Register	stable
Quality Flag System	QualityFlagSystem	Quality Flag System	Register , Collection , Container	stable
Type of reference surface	ReferenceSurfaceType	Type of reference surface	Container , Register , Collection	stable
Reference time	ReferenceTime	Reference time	Collection , Register , Container	stable
Relative elevation	RelativeElevation	Relative elevation	Container , Register , Collection	stable
Station/Platform operating status	ReportingStatus	Station/Platform operating status	Collection , Container , Register	stable
Representativeness	Representativeness	Representativeness	Container , Register , Collection	stable
Sample treatment	SampleTreatment	Sample treatment	Register , Container , Collection	stable
Sampling strategy	SamplingStrategy	Sampling strategy	Register , Collection , Container	stable
Source of observation	SourceOfObservation	Source of observation	Register , Container , Collection	stable
Direction of station pictures	StationPictureDirection	Direction of station pictures	Container , Collection , Register	stable
Surface cover classification scheme	SurfaceCoverClassification	Surface cover classification scheme	Register , Collection , Container	stable
Surface cover types (Globcover2009)	SurfaceCoverGlob2009	Surface cover types (Globcover2009)	Register , Container , Collection	stable
Surface cover types (IGBP)	SurfaceCoverIGBP	Surface cover types (IGBP)	Collection , Register , Container	stable
Surface cover types (LAI/fPAR)	SurfaceCoverLAI	Surface cover types (LAI/fPAR)	Register , Collection , Container	stable
Surface cover types (LCCS)	SurfaceCoverLCCS	Surface cover types (LCCS)	Register , Collection , Container	stable
Surface cover types (NPP)	SurfaceCoverNPP	Surface cover types (NPP)	Collection , Register , Container	stable
Surface cover types (PFT)	SurfaceCoverPFT	Surface cover types (PFT)	Collection , Container , Register	stable
Surface cover types (UMD)	SurfaceCoverUMD	Surface cover types (UMD)	Collection , Register , Container	stable
Surface roughness (Davenport roughness classification)	SurfaceRoughnessDavenport	Surface roughness (Davenport roughness classification)	Register , Container , Collection	stable
Territory of origin of data	TerritoryName	Territory of origin of data	Register , Collection , Container	stable
Meaning of time stamp	TimeStampMeaning	Meaning of time stamp	Collection , Register , Container	stable
Timezone	Timezone	Timezone	Register , Container , Collection	stable
Topographic context	TopographicContext	Topographic context	Container , Collection , Register	stable
Traceability	Traceability	Traceability	Collection , Register , Container	stable
Mode of energy transmission	TransmissionMode	Mode of energy transmission	Container , Collection , Register	stable
Procedure used to estimate uncertainty	UncertaintyEstimateProcedure	Procedure used to estimate uncertainty	Register , Collection , Container	stable
WIGOS Functions	WIGOSFunction	WIGOS Functions	Collection , Register , Container	stable
Region of origin of data	WMORegion	Region of origin of data	Collection , Register , Container	stable
Quality flag (From WaterML2)	WaterML2_0	Quality flag (From WaterML2)	Collection , Register , Container	stable
Measurement unit	unit	Measurement unit	Collection , Container , Register	stable