AerodromeRunwayVisualRange
AerodromeRunwayVisualRange
An aggregation of runway visual range conditions for a single runway, typically reported together at an aerodrome
| Properties | Definition | Type |
|---|---|---|
| meanRVR | The mean recent runway visual range value observed. This mean represents the 10 minute average for observed RVR except when the 10-minute period immediately preceding the observation includes a marked discontinuity in runway visual range values, only those values occurring after the discontinuity is used for obtaining mean values. Mean runway visual range distance shall be reported in meters (m"). To report a mean RVR of at least 2000 meters, mean RVR is reported as 2000 meters and the operator is reported as "above" Annex 3: Table A3-2 "RVR/RVR" Section 4.3.6.6" | DistanceWithNilReason |
| meanRVROperator | The reported relational operator for the mean RVR. When reported, this operator is reported in conjunction with mean RVR. To report a mean RVR of at least 2000 metres, mean RVR is reported as 2000 metres and the operator is reported as above". To report a mean RVR of less than 50 metres, mean RVR is reported as 50 metres and the operator is reported as "below". When no operator is reported, mean RVR represents an exact value with identical semantics to other measured quantities" | RelationalOperator |
| pastTendency | The runway visual range tendency (up, down, none). If the runway visual range values during the 10-minute period have shown a distinct tendency, such that the mean during the first 5 minutes varies by 100 m or more from the mean during the second 5 minutes of the period, this should be indicated. When the variation of the runway visual range values shows an upward or downward tendency, this should be indicated by Up" or "Down", respectively. In circumstances when actual fluctuations during the 10-minute period show no distinct tendency, this should be indicated using "No Change?. When indications of tendency are not available, no information should be reported ICAO Annex 3 / WMO No. 49: Table A3-2 Note 9 Section 4.3.6.6a" | VisualRangeTendency |
| runway | The runway to which reported runway visual range information applies | RunwayDirection |
Details
AerodromeRunwayVisualRange
AerodromeRunwayVisualRange
An aggregation of runway visual range conditions for a single runway, typically reported together at an aerodrome
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| RunwayVisualRange | The range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line. |
meanRVR
AerodromeRunwayVisualRange.meanRVR
The mean recent runway visual range value observed. This mean represents the 10 minute average for observed RVR except when the 10-minute period immediately preceding the observation includes a marked discontinuity in runway visual range values, only those values occurring after the discontinuity is used for obtaining mean values. Mean runway visual range distance shall be reported in meters (m"). To report a mean RVR of at least 2000 meters, mean RVR is reported as 2000 meters and the operator is reported as "above" Annex 3: Table A3-2 "RVR/RVR" Section 4.3.6.6"
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| RunwayVisualRange.rvrValue | Value of the Runway Visual Range. |
meanRVROperator
AerodromeRunwayVisualRange.meanRVROperator
The reported relational operator for the mean RVR. When reported, this operator is reported in conjunction with mean RVR. To report a mean RVR of at least 2000 metres, mean RVR is reported as 2000 metres and the operator is reported as above". To report a mean RVR of less than 50 metres, mean RVR is reported as 50 metres and the operator is reported as "below". When no operator is reported, mean RVR represents an exact value with identical semantics to other measured quantities"
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| RunwayVisualRange.rvrValueInterpretation | The relational operator that can be used for interpreting the RVR value, for instance in order to express a mean RVR of at least 2000 meters (ABOVE 2000 meters). |
pastTendency
AerodromeRunwayVisualRange.pastTendency
The runway visual range tendency (up, down, none). If the runway visual range values during the 10-minute period have shown a distinct tendency, such that the mean during the first 5 minutes varies by 100 m or more from the mean during the second 5 minutes of the period, this should be indicated. When the variation of the runway visual range values shows an upward or downward tendency, this should be indicated by Up" or "Down", respectively. In circumstances when actual fluctuations during the 10-minute period show no distinct tendency, this should be indicated using "No Change?. When indications of tendency are not available, no information should be reported ICAO Annex 3 / WMO No. 49: Table A3-2 Note 9 Section 4.3.6.6a"
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| RunwayVisualRange.rvrTendency | When instrumented systems are used for the assessment of runway visual range, the variations in runway visual range during the 10-minute period immediately preceding the observation. |
Notes
AIRM has U, D and N as values in the relevant codelist. They could be spelled out.
runway
AerodromeRunwayVisualRange.runway
The runway to which reported runway visual range information applies
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| RunwayVisualRange.associatedRunwayDirection | The runway direction for which the RVR is specified. |