GEOGRAPHY Flashcards
Characteristics of a concave slope
Close at the top
Gentle at the bottom
Characteristics of a convex
Gentle at the top
Close at the bottom
Characteristics of a even slop
Contour lines are even
Do contour lines touch, cross each other, split
No
Do contour lines join to form one contour line?
Yes
What is a ridge
Long area of high ground with lower ground on either side
Saddle is dip in a ridge
What is a pass?
Gap between 2 high areas of high ground
What is a watershed
Area
High-lying ground
Separating 2 river systems
Runs along a ridge
What is a gorge
Narrow
Steep sided valley
River running through it
What is a mesa
Flat topped hill
Wider that it is higher.
What is a butte
Flat topped hill
Higher than it is wide
What is a cuesta
Hill
Steep on one side( scarp)
Gentle on other side (dip)
Where do the contour lines of a valley and a spur point?
Valley: upstream
Spur: downhill
What is an aerial photograph?
Taken from plane
Taken at different angles
Vertical aerial photography
Surveying of an area from the air
With aerial camera on a stabilizing mount in an aircraft pointing downward
Angles of vertical aerial photograph
Oblique: angle, not directly overhead
Low oblique: small angle form vertical (<45)
High oblique: long way from vertical, shows horizon(>45)
What is a orthophoto map
Vertical aerial photograph
Contour lines
Other features of Topographic map
Has: spot heights, place names, route numbers
Shape of settlements
T- road joining another road
Linear- build around ongoing road
Semicircular
star shaped
what is a conurbation
an urban area that was created by smaller towns expanding and joining each other
