: Public Class
Created: 23/05/2012 11:32:18 AM
Modified: 22/06/2015 1:33:54 AM
Project:
Advanced:
Forecast cloud conditions, including predicted vertical visibility and cloud layers.  <br /></p><p><br /></p><p>A single vertical visibility may be reported, but cannot be reported with cloud layers.  <br /></p>
Attribute
Public Distance
  verticalVisibility
Details:
quantity=http://codes.wmo.int/common/quantity-kind/verticalVisibility
sequenceNumber=1
Notes: The vertical visibility.  Vertical visibility is defined as the vertical visual range into an obscuring medium.
Element Source Role Target Role
«DataType» CloudLayer
Class   		Name:  
  		Name: layer
 
Details:
 
Element Source Role Target Role
MeteorologicalAerodromeForecastRecord
Class   		Name:  
  		Name: cloud
 
Details:
Cloud phenomenon of operational significance, including cloud type and cloud layers.  To be included whenever applicable, so as to convey a complete description of the clouds of significance to flight operations.<br /></p><p><br /></p><p>When no clouds of operational significance are forecast and “CAVOK” is not appropriate ("NSC") it should be indicated by a missing cloud group with a nil reason of nothingOfOperationalSignificance<br /></p>
MeteorologicalAerodromeTrendForecastRecord
Class   		Name:  
  		Name: cloud
 
Details:
When no clouds of operational significance are forecast and “CAVOK” is not appropriate ("NSC") it should be indicated by a missing cloud group with a nil reason of nothingOfOperationalSignificance
Constraint Type Status
if( verticalVisibility != null ) layer == null Invariant Approved
Details:
Vertical visibility cannot be reported together with cloud layers