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GreenfieldMeteor1
Weather and Meteorology
| Term | Definition |
|---|---|
| Atmospheric Pressure (Air Pressure) | The force exerted onto a surface by the weight of the air |
| Barometer | An instrument used to measure air pressure |
| Altitude | The height or elevation of an object or point in relation to sea level |
| Greenhouse Effect | The trapping of the sun's warmth (radiation) in a planet's lower atmosphere because of the absorption of the heat by water, CO2, methane, and other gases; these gases serve to hold heat in Earth's atmoshere |
| Anemometer | An instrument for measuring the speed of the wind |
| Air Mass | A body of air with horizontally uniform temperature, humidity, and pressure |
| Warm front | A type of front in which a fast moving warm air mass overtakes a slower cold air mass; Can produce several days of cloudiness or precipitation; after it passes weather tends to be warmer and humid |
| Cold front | The boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low pressure system; Can cause heavy rain, snow and storms; after they pass expect clear skies and cooler temps |
| Stationary front | A type of front which has a pair of air masses in which neither is strong enough to replace or move the other; it can produce several days of overcast or rainy weather |
| Occluded front | A type of front where a warm air mass is caught between two cold air masses. The heavier cold air pushes the warm air up. Water vapor in the warm air condenses forming clouds and rain or snow may fall |
| Weather forecast | The application of science and technology to predict the state of the atmosphere for a given location |
| Meteorologist | An expert in or student of meteorology ;a weather forecast |
| Cumulus | Cumulo- means " heap " or " pile " in Latin. These cloud types are often known as "puffy" "cotton-like"or "fluffy clouds" in appearance ,and have flat bases. |
| Cirrus | Cloud forming wispy, feathery, tufted streaks ("mare's tales ") at high altitudes |
| Stratus | Low-level cloud characterized by horizontal layering |
| Global | Large scale winds which are the dominate prevailing wind patterns that blow in a fairly constant, steady direction across our earth |
| Coriolis Effect | An effect where a mass moving in a rotating system experiences a force (the coriolis force) acting perpendicular to the direction of motion and to the axis of rotation |
| Local Winds | Small scale convection winds of local origin caused by temperature differences |
| Land breeze | A breeze that is blowing toward the sea from the land ,especially at night |
| Sea breeze | A breeze blowing toward the land from the sea , especially during the day |
| Thunderstorm | A storm with thunder and lightning and typically also heavy rain or hail |
| Hurricane | A storm with violent wind , in particular a tropical cyclone in the Caribbean |
| Tornado | A mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system |
| Lightning | The occurrence of a natural electrical discharge of a very short duration and high voltage between a cloud and the ground or within a cloud, accompanied by a bright flash and typically also thunder |
| Blizzard | A severe snowstorm with high winds and low visibility |
| Flood | An overflowing of a large amount of water beyond its normal confines ,especially over what is normally dry land |
| Clouds | These form as moist warm air rises, expands, and eventually cools (water vapor begins to condensate) |
| Isobar | Lines on a weather map used to connect locations of equal pressure |
| Fog | When air is cooled to the dew-point near the ground it forms a stratus cloud called this |
| High Pressure | Area of cooler, heavy air which holds less water vapor because its molecules are closer together. Always moves from this towards areas of lower pressure (warm air) |
| Low Pressure | Areas of warm, less dense air which hold more water because the air molecules are farther apart. Air always moves from areas of high pressure toward these areas |
Created by:
pattigreenfield
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