Intervisibility (Grade 11 NSC Matric Geography): Flashcards
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Intervisibility definition
Intervisibility definition
Ability to see between two locations on landscape
Requirement for good intervisibility
Requirement for good intervisibility
Clear line of sight without obstructions
Method to determine intervisibility
Method to determine intervisibility
Use cross-sections showing terrain profile
When points are NOT intervisible
When points are NOT intervisible
Line between them crosses elevated terrain
When points ARE intervisible
When points ARE intervisible
Line between them remains clear without obstacles
Viewshed definition
Viewshed definition
Area visible from a particular observation point
Technology for calculating viewsheds
Technology for calculating viewsheds
Geographic Information Systems (GIS)
Military application of intervisibility
Military application of intervisibility
Determining fields of fire & strategic positions
Infrastructure use of intervisibility
Infrastructure use of intervisibility
Positioning cell phone towers for optimal coverage
What viewshed maps show for cell towers
What viewshed maps show for cell towers
Areas with strong vs poor signal reception