Vertical Interval (VI)

Key term for OCR GCSE Geography B, used in Cartographic Skills.

Definition

The difference in vertical height between two successive contour lines on a map.

Exam Context

Vertical Interval (VI) appears in OCR GCSE Geography B revision content for Geographical Skills, especially Cartographic Skills and Cartographic Techniques.

Geographical Skills Cartographic Skills Cartographic Techniques

Found in Revision Notes

Geographical Skills

Fundamental OS Map Skills: Scale, Coordinates and Relief

Cartographic Skills • Cartographic Techniques

Revise note

Related Key Terms

4-Figure Grid Reference 6-Figure Grid Reference Bottom-Left Corner Contour Line

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Eastings

Gradient

Grid Square

Horizontal Equivalent (HE)