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Weather and Climate
| Term | Definition |
|---|---|
| Water cycle | The continuous movement of water on, above, and below the Earth’s surface through processes like evaporation, condensation, precipitation, and runoff. |
| Evaporation | The process by which water changes from a liquid to a gas due to heat. |
| transpiration | The release of water vapor from plants into the atmosphere. |
| Sublimation | The process where a solid (like ice or snow) changes directly into a gas without becoming liquid. |
| Condensation | The process by which water vapor in the air cools and changes back into liquid droplets. |
| Precipitation | Water released from clouds in the form of rain, snow, sleet, or hail. |
| Weather | The day-to-day state of the atmosphere, including temperature, humidity, precipitation, wind, and visibility. |
| Humidity | The amount of water vapor in the air. |
| Relative Humility | The percentage of water vapor present in the air compared to the maximum amount the air can hold at that temperature. |
| Dew point | The temperature at which air becomes saturated with water vapor and dew forms. |
| air pressure | The weight of the air above a given point, usually measured in millibars or inches of mercury. |
| Wind | The movement of air from areas of high pressure to low pressure. |
| Visibility | The distance one can clearly see, usually affected by fog, rain, snow, or pollution. |
| Air mass | A large body of air with uniform temperature and humidity characteristics. |
| front | The boundary where two different air masses meet. |
| Jet stream | Fast-flowing, narrow air currents in the upper atmosphere that influence weather patterns. |
| Thunderstorm | A storm with lightning, thunder, heavy rain, and sometimes hail. |
| Lightning | A sudden electrostatic discharge during a storm, producing a flash of light. |
| Thunder | The sound caused by the rapid expansion of air heated by lightning. |
| Hurricane | A powerful tropical storm with strong winds (≥74 mph) and heavy rain. |
| Storm surae | A rise in sea level caused by a hurricane or storm, leading to coastal flooding. |
| Tornado | A rapidly rotating column of air extending from a thunderstorm to the ground. |
| Sinkhole | A depression or hole in the ground caused by the collapse of a surface layer. |
| Wildfire | An uncontrolled fire that spreads through vegetation. |
| Muckfire | A slow, underground fire burning in peat or organic soil. |
| Climate | The average weather conditions of a region over a long period of time. |
| Latitude | The distance north or south of the equator, affecting climate and sunlight exposure. |
| Tropography | The physical features of the Earth’s surface, like mountains, valleys, and plains. |
| Elevation | The height above sea level, affecting temperature and weather. |
| Suface Currents | Ocean currents that flow at or near the surface, driven by wind and affecting climate. |