Orthopohoto Maps Flashcards
1
Q
Vertical Ariel Photograph:
A
Taken from airplane DIRECTLY ABOVE area. You can only see the tops of things.
2
Q
Oblique Ariel Photograph:
A
Taken from an airplane at an ANGLE! You can see sides of buildings, trees, mountains, Sky etc.
3
Q
Five features of an orthophoto map…
A
- scale of 1:10 000
- Streets, buildings, rivers etc. are labeled
- Vertical Arial Photograph
- Shows height using contour lines and spot heights
- Rectifies distortion on a vertical Arial photograph
4
Q
Spot height:
A
Places where exact spot of height is known. Marked with dots. Hight in meters is next to the dot.
5
Q
Contour Lines On Orthophoto Maps:
A
Marked at 5m intervals. Give height above sea level. Show river valleys, hills, Spurs and other natural features.
6
Q
Black on an orthophoto map means…
A
Water
7
Q
Human made features appear in…
A
Straight lines
8
Q
Irregular shapes are…
A
Natural features (e.g. Rivers)
9
Q
Dots are…
A
Vegetation
