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Definition
| sometimes called "an ocean of air surrounding the earth" or "gaseous covering." a gaseous fluid that reacts to any force. |
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Term
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Definition
| a compound term used to describe the atmosphere and space as one medium. |
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Term
| What are the four ways to classify atmospheric regions? |
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Definition
| Temperature distribution, Phsicochemical Processes Distribution, Molecular composition, and Dynamic and Kinetic processes. |
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Term
| What is the average pressure at sea level? |
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Definition
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Definition
| to change to a denser form as from a gas -> liquid. |
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Definition
| the amount of water vapor in the air. |
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Term
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Definition
| the method used to tell you the amount of water vapor that can still enter an air mass before it becomes saturated. |
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Definition
| when the air is holding the maxium amount of water vapor for the existing temperature and pressure. |
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Definition
| the temperature at or below which water vapor will condense. |
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Definition
| the process by which liquid water molecules change to a gan or vapor state for the existing temperature and pressure. |
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Definition
| a process which causes evaporation by heating the oceans and large bodies of water. |
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Definition
| happens when water molecules leave the frozen (solid) state and directly enter the atmosphere without first changing into a liquid. |
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Definition
| To change to a denser form as from a gas to a liquid. |
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Definition
| When visible water falls in the form of rain, sleet, snow and hail. |
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Term
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Definition
| A large mass of water vapor condenser to fine particles, at or just above the Earth's surface. |
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Term
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Definition
| Dust and very small particles of matter. |
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Term
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Definition
| the sum total energy of all moving molecules within a substance. |
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Definition
| the measure of energy within a gas. |
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Term
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Definition
| Heating by direct contact. |
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Term
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Definition
| heat transfer by vertical motion. |
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Term
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Definition
| lateral heat transfer that is important in the global circulation of air. |
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Term
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Definition
| Energy radiated in the form of waves or particles such as the heat energy of the sun that reaches the Earth. |
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Definition
| The rate at which the Earth's surface is heated by solar radiation. |
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Term
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Definition
| rotation of the Earth influences any object moving over its surface such as the atmospher in motion. |
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Term
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Definition
| the rate of pressure increase or decrease on any atmospheric plane, usually a horizontal plane, for any given distance. |
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Term
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Definition
| lines drawn on maps to join points having the same barometic pressure. When isobars are far apart, the wind is weak; when they are close together, the wind is strong. |
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Term
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Definition
| a force moving or directed away from the center of rotation, which is a factor that affects the circulation of air or wind. |
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Term
| Land-sea breeze phenomena? |
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Definition
| Convection currents along shorelines produce heated air rising upward, which cause advection currents (wind) to flow from the water over the warmer land during the day. During the night, convection currents develop over the warmer-than-land water and cause the wind to blow from land toward the water. |
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Term
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Definition
| A comparatively narrow current of air which moves around the Northern (and Southern) hemisphere of the Earth in wavelike patterns. Compared to a "river" of win moving at high speed. |
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Term
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Definition
| the day to day changes in atmospheric conditions. |
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Term
| What are the four air masses? |
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Definition
| Polar, Tropical, Maritime, and Continental. |
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Definition
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Definition
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Definition
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Term
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Definition
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Term
| What are the three weather fronts? |
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Definition
| Cold, warm and Stationary. |
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Term
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Definition
| when a cold air mass replaces a warmer air mass, the boundary is called a cold front. |
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Term
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Definition
| when a air mass replaces a cold air mass, the boundary is called a warm front. |
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Term
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Definition
| When air masses lose their "punch" and are not replacing one another. |
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Term
| What are the three cloud types? |
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Definition
| Cumulus, Stratus, and Cirrus. |
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Term
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Definition
| piled up lower altitude clouds that look "bumpy". |
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Term
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Definition
| lcouds that stretch out/or cover as a layer. |
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Term
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Definition
| Clouds that are wispy, thin and lacy. They are high altitude clouds. |
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Term
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Definition
| the combining term to indicate that a cloud is at the moment producing precipitation or is capable of producing precipitation. |
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Term
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Definition
| mmiddle altitude clouds where the stratus and cumulus shapes are found and called altostratus and altocumulus. |
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Term
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Definition
| a combining term which means broken and/or ragged. |
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Term
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Definition
| clouds that have a lens-like shape (double convex) and usually form in the mountains. |
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Term
| What are the five types of fog? |
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Definition
| Radiation, High inversion, advection, evaporation, and Upslope. |
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Term
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Definition
| fog that forms at night when land surfaces radiate much of the heat absorbed fromt he sun back into space. |
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Term
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Definition
| a low cloud fog formed by condensation of water vapor at or near the top of cool air that is covered by a warmer air layer. |
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Term
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Definition
| fog formed when wind blows moist air over a cold surface and the surface cools the air to its dew-point temperature. |
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Term
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Definition
| Steam that occurs when cold air moves over warm water; the water's normal evaporation process saturates the cooler air with water vapor, and the dew point is reached. |
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Term
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Definition
| fog that results when wind carries moist air up a mountain slope or sloping land until the air is cooled. |
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Term
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Definition
| slopes of mountains that face the wind and are usually moistened with rain and snow. |
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Term
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Definition
| the part or side of an object (i.e. mountains) that is sheltered from the wind or is fathest from the source of the wind and is usually dry. |
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Term
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Definition
| clouds that show by their shape and motion that the air coming over the mountain is spinning on an "axis" that parallels the mountains linear shape. |
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Term
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Definition
| an atmospheric condition in which changes in speed and direction of the wind occur. |
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Term
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Definition
| caused when a column of air is quickly cooled (usually by rain) and rapidly falls toward the Earth. |
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Term
| What are the four levels of turbulence? |
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Definition
| Light, Moderate, Severe, and Extreme. |
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Term
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Definition
| turbulence usually found in hilly and mountanous regions, below 5,000 feet when the air is colder than the Earth's surface (soon after the passage of a cold front) and at anytime the wind is blowing about 20 mph. |
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Term
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Definition
| Turbulence that requires aircraft occupants to wear seat belts and unsecured objects move about. |
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Term
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Definition
| turbulence where aircraft may at time be out of control, occupeants are thrown against seat belts, and unsecured objects are tossed about. |
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Term
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Definition
| turbulence where the entire aircraft may be tossed about and is practically impossible to control; structural damage to aircraft may result. |
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Term
| Clear Air Turbulence (CAT)? |
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Definition
| may exist at different places and altitudes but be completely invisibly. The causes may be one of a combination of: convective currents, wind shear, and obstructions to wind flow. |
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Term
| Visual Flight Rules (VFR)? |
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Definition
| the general weather conditions the FAA considers a pilot can expect at the surface. |
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Term
| Instrument Flight Rules (IFR) ? |
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Definition
| weather conditions at an airport during which a pilot must use instruments to assist takeoff and landing. |
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Term
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Definition
| a concentration of water vapor, lighter than fog or clouds, but thick enough to reduce visibility. |
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Term
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Definition
| the vaporous matter arising from something burning and made visible by minute particles of carbon suspended in it. |
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Term
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Definition
| an atmospheric and surface condition in the Arctic in which no object casts a shadow, the horizon being indiscernible, and only very dark objects being seen. Snow-fall which reduces visibility. |
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Term
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Definition
| form around the wingtips of an airplane and described as horizontal tornadoes. Strong swirling air currents. |
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Term
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Definition
| the act or process of atmospheric moisture freezing upn the surfaces of an aircraft. |
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Term
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Definition
| maybe around 15,000 ft during summer and perhaps as low as 1,000 feet above ground level on warm winter days. |
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Term
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Definition
| gormed and builds quickly as an airplane flies through supercooled rain droplets. |
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Term
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Definition
| forms whan an airplane is flying through supercooled cloud condensate. If allowed to accumulate, it will reduce lift and become a larger danger to flight. |
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Term
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Definition
| a fathery depost of minute ice crystals or grains upon a surface or object, formed directly from vapor or in the air. |
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Term
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Definition
| any storm accompanied by thunder and lightning. |
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Term
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Definition
| a strong tropical cyclone (usually in the West Indies) with winds that often surpass 100 mph and have been clocked at more than 200 mph. |
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Term
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Definition
| a hurricane that occurs in the western pacific. |
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Term
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Definition
| a hurricane that occurs in the Indian Ocean. |
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Term
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Definition
| pellets or lumps of frozen rain or snow sometimes precipitated during a thunderstorm. |
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Term
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Definition
| weather condition in the tropics which can be continental (extremely varied) or oceanic (low pressure and light winds) |
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