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Meteorology
| Question | Answer |
|---|---|
| Albedo | The amount of light that refects off a surface |
| Air Pressure | The force of air pressing on a given area |
| Anti-Cyclone | Wind system that rotates around a high pressure center |
| Anemometer | An instrument for measuring the speed of the winds or gasses. |
| Air Mass | A large mass of air with the same temperature and humidity characteristics |
| Barometer | An instrument for measuring atmospheric pressure |
| Conduction | The process in which energy moves from a location of higher temperature to a location of lower temperature as heat. The material does not move, just the heat |
| Convection | The movement of material due to differences in temperature |
| Condensation | The change in a substance from a gas to a liquid, releases energy |
| Condensation Nuclei | Small paricle on which water vapor condensses |
| Cirrus | Cloud forming wispy filamentous tufted streaks at high altitudes |
| Cumulus | A cloud forming rounded masses heaped on each other above a flat base at fairly low altitude |
| Coriolis Effect | The apparent deflection of a freely moving object like water or air because of Earth's rotation |
| Cyclone | Wind system that rotates around a low pressure center |
| Dew Point | The temperature at which air is saturated with water vapor; when it has 100% humidity |
| El Nino | A natural climate variation in which the trade winds weaken or reverse directions, and warm water accumulates on the ocean surface off of South America |
| Evaporation | The change in a substance from a liquid to a gas by the addition of energy |
| Greenhouse Effect | The trapping of heat by greenhouse gases in the atmosphere; moderates temperatures |
| Humidity | The amount of water vapor held in the air |
| Hygrometer/Psychrometer | An instrument for measuring the humidity of the air or a gas |
| Isotherms | Lines connecting locations that have equal temperatures |
| Jet Stream | A fast-flowing river of air high in the atmosphere, where air masses with two very different sets of temperature and humidity characteristics move past each other |
| Latent Heat | Energy absorbed or released as material changes from solid to liquid or liquid to gas |
| Mesosphere | Layer between the stratosphere and thermosphere; temperature decreases with altitude |
| Ozone | Three oxygen atoms bonded together in an O3 molecule. Ozone in the lower atmosphere is a pollutant but in the upper atmosphere protects life from ultraviolet radiation |
| Occluded Front | A front in which a cold front overtakes a warm front |
| Precipitation | Water that falls from the sky as rain, snow, sleet, or hail |
| Pressure Gradient | A physical quantity that describes which direction and at what rate the pressure changes the most rapidly around a particular location |
| Polar Easterlies | Dry, cold prevailing winds that blow from the high-pressure areas of the polar highs at the north and south poles towards low-pressure areas within the Westerlies at high latitudes |
| Radiation | The movement of energy through empty space between objects by electromagnetic waves |
| Refection | Bouncing back. A wave bounces off a reflective surface, just as a light wave bounces off a mirror |
| Scattering | The process in which electromagnetic radiation or particles are deflected or diffused |
| Stratoshpere | Above the troposphere; temperature increases with altitude because of the presence of ozone |
| Sublimation | The change of a substance from a solid to a gas without going through the liquid phase |
| Saturated | Heavy or full of something |
| Stratus | Cloud forming a continuous horizontal gray sheet, often with rain or snow |
| Supersaturated | To increase the concentration beyond saturation ponit |
| Stationary Front | A stalled front in which the air does not move |
| Storm Surge | Water that is pushed in a pile near shore by storm winds causing sea level to rise locally |
| Thermosphere | The outer atmosphere where gases are extremely thinly distributed |
| Trade Winds | A wind blowing steadily toward the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea |
| Weather Front | A boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena |
| Westerlies | Winds blowing from the west. |
Created by:
3172004
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