| Term | Definition |
|
Greenhouse Effect |
process in which carbon dioxide and other gases in the atmosphere absorb infraded radiation from the sun,forming a "heat-blanket" around the Earth |
|
Atmosphere |
mixture of gases that surround the Earth. Part of the atmosphere absorbs most of ultraviolet rays from the sun |
|
Barometer |
insrtrument used to measure air pressure |
|
Coriolis Effect |
shift in wind direction caused by the rotation of the Earth on its axis |
|
Polor Easterlies |
extremely cold air flowing towards the equator from the poles |
|
Cumulonimbus Clouds |
large thunderclopuds |
|
Hail |
small balls or chunks of ice formed from cumulonimbus clouds |
|
Continental Tropical |
an air mass that brings dry, hot air to the southwestern states |
|
Stationary Front |
when a warm air mass and a cold air mass meet and no movement occurs |
|
Meteorologists |
people that predict the weather |
|
Jet Stream |
a narrow belt of strong, high speed, high-pressure air |
|
Relative Humidity |
percentage of moisture the air holds relative to the amount it could hold at a particular temperature |
|
Cloud Seeding |
tiny crystals of silver iodide and dry ice are sprinkled into clouds |
|
Radiant Energy |
energy that is transmitted in the form of radiation |
|
Anemometer |
instrument used to measure wind speed |
|
Land Breeze |
flow of air from land to sea |
|
Convection |
transfer of heat energy in a fluid (gas or liquid) |
|
Isotherm |
line on a weather map that connects locations with the same temperature |
|
Isobar |
line on a weather map that connects locations with the same air pressure |