Vertical dimensional property consisting of an absolute measure or range of measures referenced to a well-defined vertical reference level which is commonly taken as origin (ground level, mean sea level, etc.).
        
     
            
    
    
    
        
                
                    
                        | Navn | Type | Lengde | Multiplisitet | 
                
                    
                        |  | VerticalExtentValue |  | 1..1 | 
                    
                        |  | VerticalReferenceValue |  | 1..1 | 
        
     
    
        
            
                
                    | Name | Type | English | Description | 
            
                
                    | verticalExtent | VerticalExtentValue |  | Extent of the vertical dimension represented by a scalar or by a range of values. | 
                
                    | verticalReference | VerticalReferenceValue |  | Reference level that was chosen to determine the vertical height/depth. |