Definition
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The following diagram identifies the information items that are usually provided by a data originator for this kind of event.
| Code Block | ||||
|---|---|---|---|---|
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input = [group] [mobile] "obstacle type" [description] \n
[("location remarks")] "obstacle identifieridentification" \n
(point|line|polygon|circle) elevation [height] \n
lighting ["marking description"] \n
"start time" "end time" [schedule] \n
{note} {"affected aerodrome"} {"affected FIR"}. |
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Data item | Description | AIXM mapping | |||||
|---|---|---|---|---|---|---|---|
group | An indication whether Digital NOTAM refers to a group of obstacles with similar height located in close proximity to one another. | VerticalStructure.group with this list of values CodeYesNoType | |||||
mobile | An indication whether the obstacle has no fixed position. | VerticalStructure/VerticalStructurePart.mobile with this list of values CodeYesNoType | |||||
obstacle type | A type of vertical structure | VerticalStructure.type and VerticalStructure/VerticalStructurePart.type with this list of values CodeVerticalStructureType | |||||
description | A textual description of the obstacle, such as the number of similar items for a group, etc. | VerticalStructure.annotation with propertyName="type" and purpose="DESCRIPTION" | |||||
location remarks | A named geographical location where or close to which the obstacle is located (especially for Area 1 obstacles). Note: the information on relative position of an obstacle may serve as supplementary information for obstacles located closer to the airport. For such purposes a free text description of the obstacle position (distance, direction) in relation to relevant airport elements, such as a runway threshold or the control tower should be provided. | VerticalStructure/VerticalStructurePart.annotation with propertyName='horizontalProjection_location' and purpose="REMARK"
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obstacle identification | An alphanumerical designator by which the obstacle is identified in the national obstacle database | VerticalStructure.name | |||||
point | A tuple of latitude, longitude values and horizontal reference datum associated with the obstacle position. | VerticalStructure/VerticalStructurePart/ElevatedPoint according to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
line | Tuples of latitude/longitude values along a line, including the horizontal reference datum associated with the obstacle extent and location | VerticalStructure/VerticalStructurePart/ElevatedCurveaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
polygon | Tuples of latitude/longitude values defining a polygon, including the horizontal reference datum associated with the obstacle extent and location | VerticalStructure/VerticalStructurePart/ElevatedSurfaceaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
circle | A type of polygon in which all the points are located at constant geodesic distance from the centre of the circle. | VerticalStructure/VerticalStructurePart/ElevatedSurfaceaccording to the rules for encoding for encoding {{Geometrical and geographical data}} | |||||
elevation | The elevation (distance from Mean See Level) at the top of the obstacle. | VerticalStructure/VerticalStructurePart/ElevatedPoint or ElevatedSurface or ElevatedCurve.elevation including its unit of measure | |||||
height | The distance between the uppermost and the lowermost parts of the obstacle. | VerticalStructure/VerticalStructurePart.verticalExtent | |||||
lighting | An indication if the obstacle is lighted. | VerticalStructure.lighted with the following list of values CodeYesNoType | |||||
marking description | Includes the description of visual markers (other than lights) that are installed on the obstacle, such as painting, flags, signs, etc. | VerticalStructure.annotation with propertyName='markingICAOStandard' and purpose='REMARK' | |||||
start time | The effective date & time when the obstacle starts to exist. This might be further detailed in a "schedule". | VerticalStructure/VerticalStructureTimeSlice.featureLifetime/beginPosition, VerticalStructure/VerticalStructureTimeSlice/validTime/beginPosition, Event/EventTimeSlice.validTime/beginPosition and Event/EventTimeSlice.featureLifetime/beginPosition | |||||
end time | The end date & time when the obstacle ceases to exist | VerticalStructure/VerticalStructureTimeSlice.featureLifetime/endPosition, VerticalStructure/VerticalStructureTimeSlice/validTime/endPosition, Event/EventTimeSlice.validTime/endPosition and Event/EventTimeSlice.featureLifetime/endPosition also applying the rules for {{Events with estimated end time}} | |||||
schedule | A schedule might be provided, in case the obstacle is only active according to a regular timetable, within the period between the start of life and the end of life. | VerticalStructure/VerticalStructurePart/Timesheet/... according to the rules for {{Schedules}} | |||||
note | A free text note that provides further details about the obstacle, such as the reason for which it exists, reduced height at certain times, etc. | VerticalStructure.annotation with purpose='”REMARK' | |||||
| affected aerodrome | A reference (name, designator) to one or more airports/heliports for which the establishment of the obstacle has an operational relevance and needs to be notified to the users thereof. | Event.concernedAirportHeliport | |||||
| affected FIR | A reference (type, designator) to one or more airspace of type FIR, for which the establishment of the obstacle has an operational relevance and needs to be notified. Note: this needs to be specified only if the geometry of the area is not physically intersecting the geometry of the FIR(s) concerned. | Event.concernedAirspace |
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