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Weather
| Question | Answer |
|---|---|
| Weather | The state of the atmosphere at a place and time as regards to heat, dryness, sunshine, wind, rain. |
| Climate | The weather conditions prevailing in an area in general or over a long period. |
| Air Mass | A body of air with horizontally uniform temperature, humidity, and pressure. |
| High Pressure | A condition of the atmosphere in which the pressure is above average (e.g., in an anticyclone). |
| Low Pressure | A condition of the atmosphere in which the pressure is below average (e.g., in a depression). |
| Warm Front | The boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system. These fronts usually move slowly and bring steady rain or snow over many days. |
| Cold Front | The boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system. These fronts are fast moving and bring stormy weather and heavy precipitation followed by clearing skies and higher pressure. |
| Convection Currents | A current in a fluid (gas or liquid) that results from convection (transfer of heat). |
| Coriolis Effect | An effect whereby a mass moving in a rotating system experiences a force (the Coriolis force ) acting perpendicular to the direction of motion and to the axis of rotation. On the earth, the effect tends to deflect moving objects to the right in the north. |
| Water Cycle | The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration. |
| Temperature | A measure of the warmth or coldness substance with reference to some standard value. |
| Gulf Stream | A warm ocean current flowing N from the Gulf of Mexico, along the E coast of the U.S. |
| Maritime | Air mass over the sea |
| Tornado | A localized, violently destructive windstorm occurring over land, especially in the Middle West, and characterized by a long, funnel-shaped cloud extending toward the ground and made visible by condensation and debris. |
| Hurricane | A violent, tropical, cyclonic storm of the western North Atlantic, having wind speeds of or in excess of 72 miles per hour |
| Condensation | The water that collects as droplets on a cold surface when humid air is in contact with it. |
| Precipitation | Water droplets, rain, snow, sleet, or hail that falls to the ground. |
| Humidity | A quantity representing the amount of water vapor in the atmosphere or a gas. |
| Current | A body of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement. |
| Season | Each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hours, resulting from the earth's changing position with regard to the sun. |
| Occluded Front | The occluded front moves in the direction of the semi-circles. These fronts usually produce light rain or other precipitation. |
| Stationary Front | The stationary front is not moving. These fronts tend to stay in an area for a long period of time, often bringing long periods of precipitation and clouds. |
| Doppler Radar | A radar tracking system using the Doppler effect to determine the location and velocity of a storm, clouds, precipitation, etc. |
| Geography | The study of the physical features of the earth and its atmosphere |
| Front | The boundary that forms between air masses. |
| Meteorologists | Scientists who study the weather |
| Thunderstorms | Small, intense storm that produces strong winds, heavy rain, lightning, and thunder. |
| Volcanic | Large amounts of ash and smoke into the atmosphere. These materials could block sunlight, causing the Earth to cool. |
| Polar Region | Receive less solar radiation, and ice reflects most of it. This keeps these areas cold. Arctic regions have an average winter temperature of about -30 degrees Celsius. |
Created by:
tgehres
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