| Terms |
Definitions |
|
Elevation
|
Height above sea level.
|
|
quadrangle
|
USGS 7.5 minute topographic map
|
|
Globe
|
A sphere that represents Earth's entire surface
|
|
Contour interval
|
Difference in elevation between one contour line and the next
|
|
Isobars
|
show places with the same atmospheric pressure on a weather map
|
|
slope
|
the steepness of the landscape; rise over run
|
|
latitude
|
distance north or south of the Equator, measured in degrees
|
|
Longitude
|
Distance east or west of the prime meridian
|
|
Contour Lines
|
narrow brown lines on topographic maps that indicate the landscapes elevation change
|
|
GPS
|
made of 3 parts, the satellite, the receiver, and the master control station
|
|
magnetic declination
|
the angle (at a particular location) between magnetic north and true north
|
|
Polyconic Projection
|
Map made by fitting together a series of conic projections of adjoining areas.
|
|
Scale
|
Used to compare distance on a map or globe to distance on Earth's surface
|
|
geomagnetic pole
|
point on the earths surface above a pole of the earths imaginary internal magnet; the direction the needle points to on a compass, also known as "Magnetic North"
|
|
aerial photography
|
photos taken from a plane, used to map areas quickly
|
|
How many degrees of latitude and longitude are used to represent Earth?
|
longitude lines are numbered 0-180 degress East or West. Latitude lines are 9 degrees North or South
|
|
Physical models
|
globe, model planes
|
|
cartography
|
the science of making maps
|
|
gnomonic
|
a circular projection that distorts the area away from the center
|
|
longitude_
|
north -south lines running between the poles ,used to measure distance in degrees east and west of the prime meridian ,from 0 at the prime meridian to 180 east and west .
|
|
parallel
|
an imaginary line around the Earth parallel to the equator
|
|
Gnomonic Projection
|
Map projection in which the parallels appear as unevenly spaced, concentric circles, the meridians appear as straight lines radiating from a central poing, and all other great circles appear as straight lines.
|
|
Prime Meridian
|
longitude line that circles the widest part of the world
|
|
Symbol
|
On a map, pictures used by mapmakers to stand for features on Earth's surface
|
|
prime meridian --
|
the imaginary line dividing earth's surfaces into eastern and western hemisphere establishe as 0 at greenwhich ,england ;the starting point for standars time zones....
|
|
true north
|
the direction to the geographic north pole
|
|
Lunar eclipse
|
When the earth comes between the sun and moon
|
|
Hemisphere
|
One half of the sphere that makes up Earth's surface
|
|
conic map projection
|
Good for smaller sections of Earth at a time with lines of latitude appear as straight lines and longitude curved.
|
