Earth Science Weather Key Terms and Definations

Earth Science Weather Key Terms and Definations
air mass - ansa large body of air having characteristics of temperature,moisture, and pressure that are
approximately uniform horizontally



air pressure gradient - ansthe diffrence in air pressure for a specific distance



anemometer - ansa gauge for recording the speed and direction of wind



atmospheric pressure - ansthe pressure caused by the weight of the atmosphere pushing down on any given
area



atmospheric transparency - anshow transparent the atmosphere is to insolation, how easily insolation can pass
through the air



barometer - ansan instrument that measures atmospheric pressure



cloud cover - anspercent of total sky that is covered at a certain location



cold front - answhen a cold air mass pushes under a warm air mass



cyclonic storms - ansmovement of air masses along the polar fronts of the middle latitudesresulting in the
formation of low pressure storm systems called mid-latitude cyclones, wave cyclones, or just cyclones.



dew point - ansthe temperature at which the water vapor in the air becomes saturated and condensation
begins



front - ans(meteorology) the atmospheric phenomenon created at the boundary between two different air
masses