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Weather Vocabulary
Weather vocab
| Term | Definition |
|---|---|
| Latitude | geographic coordinates that specifies the north or south of the equator |
| Longitude | distance measured in degrees east or west from an imaginary line (called he prime meridian) that goes from the north pole to the south pole |
| Hemisphere | a half of the earth, usually divided into the northern and southern halves by the equator , or into western and eastern halves by imaginary lines passing through the poles |
| Atmosphere | the envelope of gasses surrounding the earth |
| Weather | the state of the atmosphere at a place and time as regards heat, dryness, sunshine, precipitation and wind |
| Climate | the average weather conditions in an area over a long period of time |
| Polar | formed in polar regions and are cold |
| Continental | formed over land and are dry |
| Maritime | Climate zones formed over bodies off water and are humid |
| Rain | Frozen precipitation melts and reaches the ground as rain |
| freezing Rain | Frozen precipitation melts in warm air, rain falls and freezes on cold surfaces |
| Sleet | Frozen precipitation melts in the shallow warm air, then refreezes into sleet before reaching the surface |
| Snow | rain falls through cold air and reaches the surface |
| Hail | rain that freezes over and over again and falls down as hard frozen rocks |
| Rain Gauge | a device used to measure the amount of rainfall in an area |
| Wind | the movement of air from high air pressure to low pressure |
| Anemometer | a device used to measure the speed of the wind |
| Wind Vane | a device used to show the direction of the wind |
| Coriolis Effect | a force that affects a the wind over the earth because its rotating |
| Trade Winds | winds that meet at the equator |
| Prevailing Winds | Winds that meet at around 30 latitude |
| Polar Easterlies | Winds that meet at the polar's that deflect toward the east |
| Land Breeze | Wind from land |
| Sea Breeze | Cool air in morning warm air at night; comes from sea |
| Air Pressure | The weight of the air pushing on everything around it |
| Low Pressure | a mass of warm moist air cause by a drop in air pressure |
| High Pressure | a mass of cool dry air caused by an increase in air pressure |
| Cold Front | When the cooler air mass overcomes the warmer air mass it is called a cold front |
| Warm Front | When the warmer air mass overcomes the cooler air mass it s called a warm front |
| Front | The collision of two large air masses |
| El Ni`no | a weather phenomenon occurring every 2-7 years when the water temperatures rise in the equitorial pacific |
Created by:
Athomas0
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