Summary: Physical Geography
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Physical Geography
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the rate at which 'dry' air cools by expansion as it rises or heats by compression as it falls
dry adiabatic rate (DAR) -
the rate at which an ascending air parcel that's moist, cools by expansion
most adiabatic rate (MAR) -
the mass of water vapor (g) per unit mass of air (kg) at any given temperature
specific humidity -
the process through which water vapor in the air becomes liquid water-requires condensation nuclei and saturated air
condensation -
area on the leeward slope of a mountain range where precipitation receipt is greatly reduced compared to the windward slope on the other side
rain shadow -
ice pellets larger than 0.5 cm that form within a cumulonimbus cloud, after they fall to the ground
hail -
a violently rotating column of air in contact with the ground surface, usually visible as a spinning vortex of clouds and debris
tornado -
a tropical cyclone that is fully organized and intensified in inward-spiraling rain bands
hurricane -
short-term condition of the atmosphere, as compared to climate which reflects long-term atmosphere conditions and extremes
weather -
a distinctive, homogeneous body of air that has taken on the moisture and temperature characteristics of its source region
air mass
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