Cartographic Skills Flashcards
How can you measure the relief?
Measure the gradient - Use terms like flat, steeply sloping and undulating.
How do you find the grid reference?
Along the x axis
Along the y axis
What do contour lines show?
The height of the land - they join together places of the same height and form patterns that help us to image what the land actually looks like
How are the contour lines arranged in a steep slope?
Close together
How are the contour lines arranged in a gentle slope?
Far apart
What are spot heights?
Black spot with the height in metres printed next to it
What is a ridge?
A series of hills which make a line of high grond
What is a gentle slope?
Where the land slowly decreases in height
What is a valley?
A narrow bottom with sides sloping upwards
The ‘V’ closed end of the contour lines always point toward higher ground
What is a spur?
A long, gently-sloping area of ground that runs down from a hill - sometimes called the ‘tounge’
What is a Plateau?
An area of flat land on top of a hill
What is a saddle?
A dip or lower point of a land on a ridge
What do cross sections show?
Shows the variations in relief of the land
How do you draw a cross section?
Take a straight piece of paper
Put the edge of the paper along the cross section A-B line and mark the points A and B
Every time the contour lines across the edge of your paper, make a mark
If contour line has a number not this as well
Use piece of paper like the X-axis of a graph
What does a sketch map show?
Simplify what is shown on published maps by only showing the features that are of interest