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Weather 1 TEST
| Term | Definition |
|---|---|
| Scattering | the redirecting( in all directions) of light by small particles and gas molecules in the atmosphere; the result is more light rays with weaker intensities |
| Global Warming | as a result of increases in carbon dioxide levels, as well as other greenhouse gases, global atmosphere temperatures have increased |
| Sling psychrometer | used to measure dewpoint and relative humidity |
| Saturated | the air is holding as much possible water vapor as it can under specific conditions |
| frontal wedging | warm air is forced above cooler air |
| Cause of season | the Earths axis is tilted at an angle of 23.5 degrees; angle of sunlight changes throughout the year because of the tilt |
| Importance of the ozone layer | protects from the damages of UV radiation |
| Greenhouse gases | carbon dioxide, water vapor, and methane |
| Components of air | 78% nitrogen, 21% oxygen, .93% argon, .039% carbon dioxide |
| Climate | based on observations of weather collected over many years |
| Orographic lifting | mountains act as barriers to air flow |
| Process of adiabatic heating vs. cooling | when air expands, it get colder. when air rises , pressure decreses |
| Albedo | fraction of radiation reflection by a surface |
| Altitudes effect on temperature | higher= cooler |
| Humidity | the amount of water vapor in the air |
| Localized convective lifting | if something eats faster, the air above it will rise |
| The greenhouse effect | absorb and reradiate the energy; keeps us from cooling down as much as we would without it |
| melting | solid to liguid |
| freezing | liquid to solid |
| boiling | liquid to gas |
| condensation | gas to liquid |
| sublimation | solid to gas |
| depostition | gas to solid |
| convergence | when two air masses flow together, air must rise |
| Conduction | heat transfer by direct contact |
| Convection | heat transfer by mass movement of particles |
| Adiabatic | temperature changes without the addition/ removal of heat |
| Weather | the state of the atmosphere at any given time and place |
| Relative Humidity | how close the air is to being saturated |
| Radiation | transfer of heat as a wave |
| land vs. water | land heats up/ cools down faster than water because of its specific heat |
| Latitudes effect on temperature | higher latitudes= lower angle of insolation= lower temperature |
| 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 |
Created by:
sydney.holtz