: Public <<DataType>> Class
Created: 02/03/2012 17:00:32
Modified: 22/10/2012 16:02:13
Project:
Advanced:
An aggregation of runway visual range conditions for a single runway, typically reported together at an aerodrome.
Attribute
Public Runway
  runway

Details:
sequenceNumber=1
Notes: The runway to which reported RVR information applies
Public RunwayVisualRangeTendency
  pastTendency

Details:
allowXMLAttribute=true
sequenceNumber=4
Notes: The RVR tendency (up, down, none).<br /></p><p><br /></p><p>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<br /></p><p><br /></p><p>Annex 3:<br /></p><p>Table A3-2 Note 9<br /></p><p>Section 4.3.6.6a<br /></p>
Public RunwayVisualRange
  meanRVR

Details:
sequenceNumber=5
Notes: The mean recent RVR 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 shall be used for obtaining mean values<br /></p><p><br /></p><p>Annex 3:<br /></p><p>Table A3-2 "RVR/RVR"<br /></p><p>Section 4.3.6.6<br /></p>
Public RunwayVisualRange
  oneMinuteMeanMinimumRVR

Details:
sequenceNumber=3
Notes: The observed 1-minute mean minimum variations for the runway visual range.<br /></p><p><br /></p><p>If the 1-minute runway visual range values during the 10-minute period vary from the mean value by more than 50 m or more than 20 per cent of the mean value, whichever is greater, the 1-minute mean minimum and the 1-minute mean maximum values should be reported instead of the 10-minute mean value. If the 10-minute period immediately preceding the observation includes a marked discontinuity in runway visual range values, only those values occurring after the discontinuity should be used to obtain variations.<br /></p><p><br /></p><p>Annex 3:<br /></p><p>Table A3-2 "RVR/RVR variations"<br /></p><p>Section 4.3.6.6<br /></p>
Public RunwayVisualRange
  oneMinuteMeanMaximumRVR

Details:
sequenceNumber=2
Notes: The observed 1-minute mean maximum variations for the runway visual range.<br /></p><p><br /></p><p>If the 1-minute runway visual range values during the 10-minute period vary from the mean value by more than 50 m or more than 20 per cent of the mean value, whichever is greater, the 1-minute mean minimum and the 1-minute mean maximum values should be reported instead of the 10-minute mean value. If the 10-minute period immediately preceding the observation includes a marked discontinuity in runway visual range values, only those values occurring after the discontinuity should be used to obtain variations.<br /></p><p><br /></p><p>Annex 3:<br /></p><p>Table A3-2 "RVR/RVR variations"<br /></p><p>Section 4.3.6.6<br /></p>
Element Source Role Target Role
«Type» MeteorologicalAerodromeObservationRecord
Class   		Name:  
  		Name: rvr
 
Details:
RVR conditions are required if horizontal visibility or RVR is less than 1500 meters, up to a maximum of four runways
Tag Value
acceptXMLAttribute true
Details: