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Weather
| Term | Definition |
|---|---|
| Polar | relating to the North or South Pole |
| Continental | a climate characterized by hot summers, cold winters, and little rainfall, typical of the interior of a continent |
| Maritime | a climate much modified by oceanic influences |
| Longitude | graphic coordinate that specifies the north or south of the equator |
| Latitude | the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. |
| Hemisphere winds | One half of a sphere, formed by a plane that passes through the center of the sphere |
| Atmosphere | the envelope of gases surrounding the earth or another planet. |
| Weather | the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, |
| Climate | the weather conditions prevailing in an area in general or over a long period. |
| Wind | the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction. |
| Anemometer | an instrument for measuring the speed of the wind, or of any current of gas. |
| Wind Vane | mechanical device attached to an elevated structure; rotates freely to show the direction of the wind. |
| Coriolis Effect | the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths |
| trade winds | begin as warm, moist air from the equator rises in the atmosphere and cooler air closer to the poles sinks |
| prevailing Westerlies | prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude |
| Polar Easterlies | dry, cold prevailing winds that blow from the east |
| High pressure | a condition of the atmosphere in which the pressure is above average |
| Low pressure | a condition of the atmosphere in which the pressure is below average |
| Cold fronts | the boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system. |
| Warm fronts | the boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system. |
| Stationary fronts | forms when a relatively moist, warm air mass slides up and over a cold air mass |
| Occluded fronts | a composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front. |
| Barometer | an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude. |
| Air Mass | a body of air with horizontally uniform temperature, humidity, and pressure |
| Water vapor | When it is heated, liquid water forms a gas, or vapor |
| Fog | a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface which obscures or restricts visibility (to a greater extent than mist; strictly, reducing visibility to below 1 km). |
| El Nino | a warming of the ocean surface, or above-average sea surface temperatures, in the central and eastern tropical Pacific Ocean. |
| La nina | the periodic cooling of ocean surface temperatures in the central and east-central equatorial Pacific |
Created by:
Mreilly1
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