Maps as Models of the Earth

Magnetic Declination

• the angle of correction between magnetic north and geographic north

• true north

• true south

• lines that connect equal elevation

Contour lines

• true north

• angle of correction

• 0 degrees longitude

• lines that connect equal points of elevation

elevation

• the height above sea level

• equal points of elevation

• 0 Degrees longitude

• geographic north

Prime Meridian

• 0 degrees longitude

• 0 degrees latitude

• the north pole

• the south pole

Contour Interval

• 0 degrees longitude

• lines that connect equal points of elevation

• geographic north pole

• the difference in elevation between one contour line and the next

True North

• geographic north pole

• the height above sea level

• lines that connect equal points of elelvation

• 0 degrees longitude

True North

• geographic north

• the height above sea level

• 0 degrees longitude

• north

Cardinal Directions

• north, south, east and west

• northeast, southeast, southwest and northwest

• true north

• geographic north

Intermediate Directions

• north, south, east and west

• northeast, southeast, northwest, and northeast

• geographic north

• true north

Longitude

• the distance east or west of the prime meridian

• the distance north or south of the equator

• true north

• true west