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Earth Science Ch. 12
study study of weather
currrent state of the atmosphere
the weather in some location averaged over some long period of time
a huge body of air that has similar temperature, humidity, and air pressure at any given height
air mass modification
the exchange of heat or moisture with the surface over which an air mass travels
The way Earth's rotation makes winds in the Northern Hemisphere curve to the right and winds in the Southern Hemisphere curve to the left.
global wind system that occurs at 30 degrees latitude
winds that blow west to east between 30 and 60 degrees in the northern and southern hemispheres
Prevailing winds that blow from east to west between 60degrees-90degrees latitude in both hemisphere.
a high-speed high-altitude airstream blowing from west to east near the top of the troposphere
(meteorology) the atmospheric phenomenon created at the boundary between two different air masses
measuring instrument for measuring temperature
an instrument that measures atmospheric pressure
a gauge for recording the speed and direction of wind
measuring instrument for measuring the relative humidity of the atmosphere
instrument for measuring height of cloud ceiling above earth
a package of instruments that is carried aloft by balloons to measure upper atmosphere conditions, including temperature, dew point, and wind velocity
change in the apparent frequency of a wave as observer and source move toward or away from each other
indicates weather conditions at a specific location, using a combination of symbols on a map
Line drawn on a weather map that connects points of equal or constant values
weather forecast that uses numerical data to determine how atmosphereic variables change over time
invloves comparing current weather patterns to patterns that look place in the past