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meteorology- weather
meteorology
| Question | Answer |
|---|---|
| Front | Boundary between air masses of different densities, and usually different temperatures. |
| High pressure | an area of high pressure that rotates clockwise in the northern hemisphere and counter clockwise in the southern hemispehere. |
| Low pressure | a weather system in which air pressure decreases toward the center. This is usually caused by a mass of warm air being forced upward by cold air. Such systems are usually associated with unsettled weather. |
| Cold front | a warm -cold air boundary with the cold air advancing |
| Warm front | a warm-cold air boundary with the warm air advancing |
| isobar | A line drawn on a weather map connecting points of equal air pressure;delineates high-and low-pressuer areas. When close together ,isobars indicate areas of strong winds. |
| isotherm | lines on a map connecting the all places with the same temperature |
| millibars of Mercury | a metric unit of air pressure measurememt |
| barometric pressure | is caused by the weight of the air pressing down on the Earth |
| meteo-grams | A meteogram is a time cross-section of data for a specific surface reporting station. |
| solar radiation | the energy produced by the sun |
| terrestrial radiation | The portion of the natural background radiation that is emitted by naturally occurring radioactive materials, such as uranium, thorium, and radon in the earth. |
| dew point | measure of humidity given in terms of temperature at given in terms of temerature at which dew will start to form |
| saturation | point at which the amount of water vapor in the air is greatest for the airs's temerature and pressure |
| humidity | the amount of moisture in the air. |
| cyclone | an area of low=atmosheric pressure with wins blowing around it, conterclockwise in the southern hemisphere |
| anticyclone | an area of high pressure that rotates clockwise in the northern hemisphere and counter clockwise in the southern hemispehere. |
| meso-scale | in meteorology weather systems and events up to about 250 miles across |
| anemometer | use to measure wind speed |
| Doppler radar | radar that measures speed and direction of a moving onject, such as wind |
| infrared- lighting | electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves |
| sisible satellite water vapor imaging | (blank) |
| weather radar | (blank) |
| sheer winds | (blank) |
| hail | balls of ice that grow in thunderstorm updrafts |
| water spouts | a tornado or weaker vortexfrom the bottom of a cloud to the surface of a body of water |
| jet stream | a narrow band of upperatomsphere wind with speeds of greater than 57 miles an hour |
| wind | (blank) |
| singularities | (blank) |
| absolute humidity | the mass of water vapor in a given volume of air |
| Altimeter | A secial type of aneroid barometer used in airplanes to measure altitudes |
| back door cold front | a cold front that moves from the northeast instead of the more usual morthwest or north, in the eastern united states |
| Barometer | a device used to measure air pressur |
| Beaufort Wind scale | scale used to classify wind speed, divised in 1805 by British Admiral Francis Beaufort to classify winds at sea |
| Climate | the average type of weather over a few hours |
| El Nino | disruption of oceans atmosphere |
| La Nina | unusual cold ocean temp.in the Tropical ocean climate |
| Dendrochronology | study of tree rings to predict weather |
| Pollen | plant seeds sparce in drought plentifull in normal weather and sparce in cold times |
| paleoclimatology | ancient climate |
| moisture index | moniters moisture used to forcast drought |
| Microclimate | climate conditions in a smaller aria |
| Isotherms | lines on weather map connect with same temp |
| Tropical | 30 deg.N to 30 deg S. lots of rain, worm climate, rainforest |
| temperate | mid lat 30deg - 60 degres to north and south |
| Desert | little to no rain, any lat, depends on other factors |
| Polar | cold tundra 60-90 degrees |
| Marine | winter painy and mild summer hot dry |
| Humid | close to tropic, all year rain fall, winters are short mild and summer hot humid |
| Arid | plains and tundra |
| Rain shadow | an area where very little rain fall occures on the leeward side of a mountain |
| radiator | any material that |
| terrestrial radiation | electromagnetic energy given off by the surface of the earth |
| windward side | precipitation occurs on this side of the mountain |
| climate | average conditions of the atmosphere near the earth's surface over a long period of time, taking into account temperatures, precipitation, humidity, wind, barometric pressure, and other phenomena. |
| horse latitudes | two belts of latitude where winds are light and the weather is hot and dry. They are located mostly over the oceans, at about 30° latitudes |
| topography | (blank) |
| Climatology | the science of climate and its relation to plant and animal life, is important in many fields, including agriculture, aviation, medicine, botany, zoology, geology, and geography. |
| doldrums or equatorial belt of calms | area around the earth centered slightly north of the equator between the two belts of trade winds. |
| global warming | the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution. |
Created by:
tbjh