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WGU SEA4 Meteorology
| Question | Answer |
|---|---|
| Aerosols | Tiny solid and liquid particles suspended in the atmosphere |
| Air | A mixture of many discrete gases, of which nitrogen and oxygen are most abundant, in which varying quantities of tiny solid and liquid particles are suspended |
| Albedo | The reflectivity of a substance, usually expressed as a percentage of the incident radiation reflected |
| Autumnal Equinox | The equinox that occurs on September 21 - 23 in the Northern Hemisphere and on March 21 - 22 in the Southern Hemisphere |
| Circle of Illumination | The great circle that separates daylight from darkness |
| Climate | A description of aggregate weather conditions, the sum of all statistical weather information that helps describe a place or region. |
| Conduction | The transfer of heat through matter by molecular activity. Energy is transferred through collisions from one molecule to another. |
| Convection | The transfer of heat by the movement of a mass or substance. It can take place only in fluids. |
| Diffused Light | Solar energy scattered and reflected in the atmosphere that reaches Earth's surface in the form of diffuse blue light from the sky. |
| Electromagnetic Radiation | The transfer of energy (heat) through space by electromagnetic waves |
| Elements of weather and climate | Those quantities or properties of the atmosphere that are measured regularly and that are used to express the nature of weather and climate |
| Environmental Lapse Rate | The rate of temperature decrease with increasing height in the troposphere. |
| Greenhouse Effect | The transmission of short-wave solar radiation by the atmosphere, coupled with the selective absorption of longer-wavelength terrestrial radiation, especially by water vapor and carbon dioxide. |
| Heat | The kinetic energy of random molecular motion |
| Inclination of the axis | The tilt of the Earth's axis from the perpendicular to the plane of Earth's orbit |
| Infrared | Radiation with a wave-length from 0.7 to 200 micrometers |
| Isotherm | Lines connecting points of equal temperatures |
| Mesosphere | The layer of the atmosphere immediately above the stratosphere and characterized by decreasing temperatures with height |
| Ozone | A molecule of oxygen containing 3 oxygen atoms |
| Radiation | The transfer of energy (heat) through space by electromagnetic waves |
| Reflection | The process whereby light bounces back from an object at the same angle at which it encounters a surface and with the same intensity |
| Revolution | The motion of one body about another, as Earth about the Sun |
| Rotation | The spinning of a body, such as Earth, about its axis |
| Scattering | The redirecting (in all directions) of light by small particles and gas molecules in the atmosphere. The result is diffused light. |
| Spring Equinox | The equinox that occurs on March 21 - 22 in the Northern Hemisphere and on September 21 - 23 in the Southern Hemisphere |
| Stratosphere | The layer of the atmosphere immediately above the troposphere, characterized by increasing temperatures with height, owing to the concentration of ozone |
| Summer Solstice | The solstice that occurs on June 21-22 in the Northern Hemisphere and on December 21-22 in the Southern Hemisphere |
| Temperature | A measure of the degree of hotness or coldness of a substance; a measure of the average kinetic energy of individual atoms or molecules in a substance |
| Tropic of Cancer | The parallel of latitude, 23.5 degrees north latitude, marking the northern limit of the Sun's vertical rays |
| Tropic of Capricorn | The parallel of latitude, 23.5 degrees south latitude, marking the southern limit of the Sun's vertical rays |
| Troposphere | The lowermost layer of the atmosphere. It is generally characterized by a decrease in temperature with height. |
| Ultraviolet | Radiation with a wavelength from 0.2 to 0.4 micrometer |
| Visible Light | Radiation with a wave-length from 0.4 to 0.7 micrometer |
| Weather | The state of the atmosphere at any given time |
| Winter Solstice | The solstice that occurs on December 21-22 in the Northern Hemisphere and on June 21-22 in the Southern Hemisphere |
| Outgassing | The escape of gases that had been dissolved in magma |
| Thermosphere | The region of the atmosphere immediately above the mesosphere and characterized by increasing temperatures due to absorption of very shortwave solar energy by oxygen. |
Created by:
MStrange
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