Mapping Flashcards
What imaginary lines divide the earth into its eastern and western hemispheres?
Meridians and Prime meridians
How are meridians and prime meridians arranged?
They go North to South. They are equal in length and meet at the poles.
How are meridians and prime meridians calculated? What do they determine?
Using the moon. They determine time zones
What imaginary lines divide the earth into its northern and southern hemispheres?
Parallels and the equator
How are Parallels and the equator arranged?
They go West to East. They are unequal in length and never touch.
How are parallels and the equator calculated? What do they determine?
Using the sun. They determine temperature zones.
Explain contour lines.
Close contour lines represent a steep slope. Contour lines that are far apart represent a gradual or gentle slope.
What are the 4 types of maps?
Azimuthal projections
Conical projections
Cylindrical projections
topographical projections
Azimuthal projection:
-What is it?
-What is it used for?
-Advantages
-Disadvantages
- Connects to a globe at a single point, usually a pole
-Used for air and sea navigation
-Shows shortest distance
-Unequal spacing between parallels can cause a distortion in distance and direction.
Conical projections:
-What is it?
-What is it used for?
-Disadvantages
-Connects to a globe at a chosen line of latitude
-Used for weather maps
-Distorts away from areas of contact
Cylindrical Projections:
-What is it?
-What is it used for?
-Advantages
-Disadvantages
-Wraps a cylinder vertically around a globe.
-Used for directions and road maps
-Preserves shape
-Exaggerates size and distorts at the poles
Topographical maps:
-What is it?
-Maps that show elevation
What is a map legend?
Shows what each symbol on a map represents.
What is a scale?
Shows distance on a map.
