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Flashcards in Map skills Deck (20)
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1

Give the definition for a contour line

Symbolic horizontal lines which indicate the heigh and shape of a slope

2

What is a contour interval

The distance between each contour

3

What do you call someone who makes maps

Cartographer

4

What is gradient

The angle of a slope compared to the horizontal (describes the steepness of a slope)

5

How do you calculate gradient

vertical height difference/horizontal height difference

6

If the contour lines are closer together the slope is?

STEEP

7

If the contour lines are far apart, the slope is?

GENTLE

8

The U shaped contour line represents ?

Spurs

9

The V shaped contour line represents?

A river valley

10

What is the acalew for an Orthophoto Map

1:10 000

11

What is an orthophoto map?

A rectified image based on an aerial photograph with additional information from a map

12

What are the 5 things Orthophoto maps display?

Place names
contour lines
height
road numbers
grid

13

Vertical Aerial Photograph

Show's the land from directly above earths surface

14

Oblique Aerial Photograph

Shows the land from above, but at an angle

15

What is a topographic map?

It is a map that shows the shape of the land and the different features on land

16

What is the scale for a topographic map

1:50 000

17

What does a scale of 1: 10 000 mean?

This means that 1cm on the map represents 10 000cm/100 m on the ground

18

What is a perennial river?

A river that flows throughout the year

19

What is a non-perrenial river?

A river that only flows some of the time, during a rainy season

20

Name the 4 ways how height is shown on a topographic map

Trig Beacons
Spot Heights
Contour Lines
Benchmarks