GIS Dictionary | Letter V

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– V –

Vertical Interval
The difference between elevation between two adjacent contours.   In the example below, the vertical elevation is 20 meters.  Therefore, each contour represents a change of 20 meters in elevation as compared to its nearest neighboring contour.

Contour lines corresponding to elevation points on a hill slope.
Contour lines corresponding to elevation points on a hill slope.

 

Visibility Analysis
A line showing the visibility from one point to another as a result of line of sight analysis.
See: Light of Sight in GIS

Line of sight analysis showing the obstructed (red) and visible (green) points across a terrain.
Line of sight analysis showing the obstructed (red) and visible (green) points across a terrain.

GIS Acronyms that start with V

VRS – Virtual Receiving Station

More geographic concepts from the GIS dictionary:

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