What is topography?
The mapping of elevation
What does a topographic map tell you, that other maps cant?
Topographic maps tell us elevation.
Who might use a topographic map (and why)?
Farmers because certain crops grow on different elevations.
Elevation - Height of a place relative to a reference height
Contour Lines - a line connecting points that have the same elevation
Contour Interval - the difference in elevation between two adjacent contour lines
Depression Contour - contour lines indicating a downward slope (drawn with hatch marks)
The mapping of elevation
What does a topographic map tell you, that other maps cant?
Topographic maps tell us elevation.
Who might use a topographic map (and why)?
Farmers because certain crops grow on different elevations.
Elevation - Height of a place relative to a reference height
Contour Lines - a line connecting points that have the same elevation
Contour Interval - the difference in elevation between two adjacent contour lines
Depression Contour - contour lines indicating a downward slope (drawn with hatch marks)
Practice Questions:
1) Which of the topographic maps shows two peaks?
C
Which side has higher elevation?
Left side
2) Which topographic map shows the steepest cliff?
B
Where is it?
On the bottom right
3) Can you tell the elevation of the topographic feature in plot B exactly? If so, what is the elevation, if not, why and what would be your closest guess?
No, because it is not labeled. My closest guess is a number N>700
4) Which topographic map has a contour interval of 50 feet?
A
5) Which of the topographic maps depicts a canyon, or depression?
B
1) Which of the topographic maps shows two peaks?
C
Which side has higher elevation?
Left side
2) Which topographic map shows the steepest cliff?
B
Where is it?
On the bottom right
3) Can you tell the elevation of the topographic feature in plot B exactly? If so, what is the elevation, if not, why and what would be your closest guess?
No, because it is not labeled. My closest guess is a number N>700
4) Which topographic map has a contour interval of 50 feet?
A
5) Which of the topographic maps depicts a canyon, or depression?
B