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30 terms

Physical Geography

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Physical Geography
Study of the physical elements of geography
Cultural Geography
Sometimes referre to as human geography
SI
International system of measurement
Lithosphere
solid, inorganic portion of Earth
Atmosphere
gaseous envelope of air that surrounds Earth
Hydrosphere
comprises water in all its forms
Cryosphere
subcomponent of hydrosphere; water frozen as snow and ice
Biosphere
encompasses all the parts of Earth where living organisims can exist
Plane of the Equator
halfway between the poles and perpendicular to the axis of rotation
Equator
plane intersects Earth's surface is the imaginary midline of Earth
Great Circle
where it intersects the surface of the sphere
Graticule
grid system of Earth
Latitude
description of location expressed as an angle north or south of the equator
Parallel
a line connecting all points of the same latitude
Subtropical
slightly poleward of the tropics; 25-30 derees N and S
Polar
within a few degrees of the North or South Pole
Longitude
angular description of east-west location
Meridians
not parallel to one another except where they cross the equator
Plane of the Ecliptic
Earth around the Sun
Solar Altitude
the height of the Sun above the horizon
June Solstice
when Earth reaches the position in its orbit where the North Pole is directed towards the Sun
Tropic of Cancer
when the rays of the Sun at noon are striking perpendicular to the surface
Circle of Illumination
dividing line between the daylight half of Earth and nighttime half of Earth
Arctic Circle
the northern polar circle
Antarctic Circle
the southen polar circle
September Equinox
when the vertical rays of the Sun are striking the equator
December Solstice
reaches the position in its orbit where the North Pole is not directed from the Sun
Tropic of Capricorn
23.5 degrees south
GMT
Greenwich Mean Time
UTC
Universal Time Coordinated