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a disturbing in the atmosphere that can have lightening, thunder, gusty winds, heavy rain and hail. They occur during spring and summer during the warmest part of the day. |
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a rotating column of air that forms from thunderstorms over dry land You measure there intestine with the (f)ujita scale. Narrow storm-can range from a few meters up to a mile wide. Most of them occur from july to march in the us during late afternoon A waterspout is a tornado that occurs over water. |
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A massive rotating storm that can be up to 300 miles wide. Begins as a tropical storm. Occur over warm waterspout Wind speed determine the category on the saffir/simpson scale. North atlantic and east pacific is called a Hurricane. Indian ocean and Australia is called a cyclone Western pacific is called a typhoon |
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a spiral movement of air or liquid In a hurricane, the eye is an example of the center of the vortex 3 causes that form vortexes is, uneven heating of Earths surface, forces of gravity, and Earths rotation. |
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When air moves over surfaces it takes on the temperature and humidity conditions-creating air mass. |
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What is symbol and what does a cold front and warm front stand for. |
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Cold Front- Blue triangles. Cold temperatures and stormy. Warm Front= Red half circles. Warm temperature nice and sunny. |
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What are the four main layers of the atmosphere classified by? |
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They are classified by change in temperature. |
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inner and lowest layer, Earths weather occurs here. |
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this layer absorbs ultraviolet radiation, contains ozone layer. |
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most meteoroids burn up in this layer |
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outer most layer, no definite outer limit and is the hottest layer. |
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Lower and upper parts of the thermosphere. |
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Ionosphere- reflects radio waves back to EARTH, aurora borealis ( northern lights occur here. This is lower Exosphere- phone calls and television pictures often reach you by way of communication satellites that orbit Earth. Upper layer |
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the direct transfer of energy by electromagnetic waves. (example, heat from the sun) |
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the direct transfer of heat from one substance from another it is touching. (example, sand on your feet. |
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The transfer of heat by the movement of a fluid. (liquids and gasses) (example, rising hot air.) |
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What is a convection current. |
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The rising of hot air and falling of cool air. -molecules less dense cool. |
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cool land air moves to water during nighttime starting over land. |
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cool air from the water moves to land during daytime starting over water. |
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air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure The different rates that land and water change temperature causes wind. |
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A powerful land and see breeze. They change direction with the seasons. Mostly happen in India Periods of rain summer and land. Heats up and pulls moisture from Indian ocean. |
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winds that continually form between the equator and the poles. Trade winds-flow toward equator Westerlies- blow west to east Easterlies- blow east to west Caused by giant convection currents Warm air at the equator rises and flows towards the poles-cold poler air sinks. |
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Long narrow tubes of air in the upper troposphere. Few hundred kilometers wide Can go ½ way around the Earth. Winds-260 mph moves weather in the us west to east. |
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