{
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"$id": "https://schema.twindev.org/unece/UneceGeographicalCoordinate",
	"title": "UneceGeographicalCoordinate",
	"description": "A set of geographical coordinates of a specific point such as the longitude, latitude and altitude.",
	"type": "object",
	"properties": {
		"@context": {
			"$ref": "https://schema.twindev.org/unece/UneceContextType",
			"description": "JSON-LD Context."
		},
		"type": {
			"const": "GeographicalCoordinate",
			"description": "JSON-LD Type."
		},
		"acquisitionDateTime": {
			"type": "string",
			"description": "The date, time, date time or other date time value of the acquisition of this geographical coordinate.",
			"format": "date-time"
		},
		"alternativeSourceSystemId": {
			"anyOf": [
				{
					"type": "string"
				},
				{
					"$ref": "https://schema.twindev.org/json-ld/JsonLdValueObject"
				}
			],
			"description": "An alternative source system identifier for this geographical coordinate."
		},
		"altimetricSystemId": {
			"anyOf": [
				{
					"type": "string"
				},
				{
					"$ref": "https://schema.twindev.org/json-ld/JsonLdValueObject"
				}
			],
			"description": "The unique identifier of the system used for measuring the altitude."
		},
		"altitudeMeasure": {
			"$ref": "https://schema.twindev.org/unece/UneceMeasureType",
			"description": "The measure of the altitude that reflects the vertical elevation of an object above a surface for this geographical\ncoordinate (Reference ISO 6709)."
		},
		"identifier": {
			"anyOf": [
				{
					"type": "string"
				},
				{
					"$ref": "https://schema.twindev.org/json-ld/JsonLdValueObject"
				}
			],
			"description": "The unique identifier for this geographical coordinate."
		},
		"latitudeDirectionIndicator": {
			"type": "boolean",
			"description": "The indication of whether the latitude compass direction from the Equator meridian to the meridian of a specific place\nis North (+) or South (-) (Reference ISO 6709)."
		},
		"latitudeMeasure": {
			"$ref": "https://schema.twindev.org/unece/UneceMeasureType",
			"description": "The measure of the latitude as an angular distance north or south from the Equator meridian to the meridian of a\nspecific place for this geographical coordinate (Reference ISO 6709)."
		},
		"longitudeDirectionIndicator": {
			"type": "boolean",
			"description": "The indication of whether the longitude as a compass direction from the Greenwich meridian to the meridian of a specific\nplace is East (+) or West (-) for this geographical coordinate (Reference ISO 6709)."
		},
		"longitudeMeasure": {
			"$ref": "https://schema.twindev.org/unece/UneceMeasureType",
			"description": "The measure of the longitude as an angular distance east or west from the Greenwich meridian to the meridian of a\nspecific place (Reference ISO 6709)."
		},
		"systemId": {
			"anyOf": [
				{
					"type": "string"
				},
				{
					"$ref": "https://schema.twindev.org/json-ld/JsonLdValueObject"
				}
			],
			"description": "The unique identifier of the reference system used for measuring a geographical coordinate."
		},
		"timeZone": {
			"type": "string",
			"description": "The time zone, expressed as text, for this geographical coordinate."
		},
		"timeZoneCode": {
			"type": "string",
			"description": "The code specifying the time zone of this geographical coordinate."
		},
		"timeZoneDateTime": {
			"type": "string",
			"description": "The date, time, date time, or other date time value for the time zone of this geographical coordinate.",
			"format": "date-time"
		},
		"usedCoordinateReferenceSystem": {
			"$ref": "https://schema.twindev.org/unece/UneceCoordinateReferenceSystem",
			"description": "The CS (Coordinate System) engineering coordinate reference system used for this geographical coordinate."
		},
		"usedCoordinateSourceSystem": {
			"$ref": "https://schema.twindev.org/unece/UneceCoordinateSourceSystem",
			"description": "The geographical coordinate source system used for this geographical coordinate."
		}
	},
	"required": ["type"]
}