Vertical Exaggeration (Grade 11 NSC Matric Geography): Flashcards
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Vertical exaggeration (VE) definition
Vertical exaggeration (VE) definition
Stretching vertical scale vs horizontal in cross-sections
VE formula
VE formula
VE = VS/HS
Requirement before calculating VE
Requirement before calculating VE
Both scales must use same units
Factor to convert metres to centimetres
Factor to convert metres to centimetres
Multiply by 100
Topographic map horizontal scale
Topographic map horizontal scale
1:50,000
Orthophoto map horizontal scale
Orthophoto map horizontal scale
1:10,000
Why use vertical exaggeration
Why use vertical exaggeration
Makes terrain features more visible & easier to study
Effect of higher vertical exaggeration
Effect of higher vertical exaggeration
Makes terrain appear more dramatic
Common mistake in VE calculations
Common mistake in VE calculations
Forgetting to convert units before calculating
Typical topographic map vertical interval
Typical topographic map vertical interval
1 cm:20 m or 1 cm:100 m