Topographic Maps Flashcards
1
Q
Topographic Map:
A
Scale of 1:50 000
Shows both physical and man made features.
2
Q
Physical:
A
Natural. Rivers, marshes, erosion etc.
3
Q
Man made features:
A
Created by man. Roads, buildings, power lines etc.
4
Q
What is used to understand a topographical map?
A
symbols (represented by using a key).
Colours are used to identify things easily.
5
Q
Altitude:
A
Height above sea level
6
Q
Four ways to identify height on topographical maps:
A
- spot heights
- trigonomical beacons
- bench marks
- contour lines.
7
Q
Contour lines on topographical maps:
A
Join places of same height above sea level.
20m intervals.
Dark brown.
100m apart.
8
Q
Spot heights on trigonomical maps:
A
Show exact height in meters
9
Q
Trigonomic beacons on trigonomical maps:
A
Also show exact heights.
Marked with a 🔼 triangle.
Has a # written next to it in italics, this is height in decimals.
