observation

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Definition of the observation table.

Property	Kind	References	Requirement	Description
id	str		Required	ID / primary key.
location	Geography		Required	Location of observation.
elevation	float		Required	Elevation of observation above mean sea level (in meters).
observation_type	str	reference_data.observation_type.id	Optional	Type of observation.
phenomenon_start	datetime		Optional	Start time of the phenomenon being observed or observing period, if missing assumed instantaneous with time given by phenomenon_end.
phenomenon_end	datetime		Required	End time of the phenomenon being observed or observing period.
result_value	float		Required	The value of the result in float representation.
result_uom	str		Required	Units used to represent the value being observed.
result_description	str		Optional	str representation of the result if applicable.
result_quality	dict		Optional	JSON representation of the result quality, key / value pairs.
result_time	datetime		Optional	Time that the result became available.
valid_from	datetime		Optional	Time that the result starts to be valid.
valid_to	datetime		Optional	Time after which the result is no longer valid.
host	str	master_data.host.id	Required	Host associated with making the observation, equivalent to OGC OMS ‘host’.
observer	str	master_data.equipment.id	Optional	Observer associated with making the observation, equivalent to OGC OMS ‘observer’.
observed_property	str	reference_data.observed_property.id	Required	The phenomenon, or thing, being observed.
observing_procedure	str	reference_data.observing_procedure.id	Optional	Procedure used to make the observation.
dataset	str		Optional	Primary dataset that this observation belongs to.
parameter	dict		Optional	List of key/ value pairs in dict.
featureOfInterest	str	master_data.feature.id	Optional	Feature of interest that this observation is associated with.
_version	int		Required	Version number of this record.
_change_date	datetime		Required	Date this record was changed.
_user	str	admin.user.id	Required	Which user/agent last modified this record.
_status	str	reference_data.status.id	Required	Whether this is the latest version or an archived version of the record.
_comments	str		Required	Free text comments on this record, for example description of changes made etc.
_source	str	master_data.source.id	Required	The source of this record.
_source_identifier	str		Required	The original identifier for the record from the data source (if available).