Flashcards in Map skills Deck (20)
Give the definition for a contour line
Symbolic horizontal lines which indicate the heigh and shape of a slope
What is a contour interval
The distance between each contour
What do you call someone who makes maps
What is gradient
The angle of a slope compared to the horizontal (describes the steepness of a slope)
How do you calculate gradient
vertical height difference/horizontal height difference
If the contour lines are closer together the slope is?
If the contour lines are far apart, the slope is?
The U shaped contour line represents ?
The V shaped contour line represents?
A river valley
What is the acalew for an Orthophoto Map
What is an orthophoto map?
A rectified image based on an aerial photograph with additional information from a map
What are the 5 things Orthophoto maps display?
Vertical Aerial Photograph
Show's the land from directly above earths surface
Oblique Aerial Photograph
Shows the land from above, but at an angle
What is a topographic map?
It is a map that shows the shape of the land and the different features on land
What is the scale for a topographic map
What does a scale of 1: 10 000 mean?
This means that 1cm on the map represents 10 000cm/100 m on the ground
What is a perennial river?
A river that flows throughout the year
What is a non-perrenial river?
A river that only flows some of the time, during a rainy season