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weather vocab
Term | Definition |
---|---|
Clouds | a mass of water drops or ice crystals suspended in the atmosphere |
Condensation | the process by which water vapor (water in its gas form) turns into liquid |
Cirrus Clouds | high feathery clouds |
Hygrometer | The instruments used to measure the humidity |
Other Cloud Names | Stratus/strato: flat/layered and smooth. Cumulus/cumulo: heaped up/puffy, like cauliflower. Cirrus/cirro: high up/wispy. Alto: medium level. |
Map | a drawing of all or part of Earth's surface |
globe | a spherical representation of a planet's surface or another large area |
Cumulonimbus (storm clouds) | large, tall clouds that are dark on the bottom and usually produce rain and thunderstorms |
Cirrocumulus | large, tall clouds that are dark on the bottom and usually produce rain and thunderstorms |
Stratocumulus | layered cumulus consisting of large balls or rolls of dark cloud which often cover the whole sky especially in winter. |
Nimbostratus (steady rain) | a type of cloud forming a thick uniform gray layer at low altitude, from which rain or snow often falls (without any lightning or thunder). |
Latitude | measures the distance north or south of the equator. |
Longitude | Longitude plays a significant role in determining climate due to its impact on the distribution of sunlight and temperature across the Earth's surface |
hemisphere, | a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles. |
climate | conditions of the atmosphere at a particular location over a long period of time |
rain | liquid precipitation: water falling from the sky |
freezing rain | occurs when the layer of freezing air is so thin that the raindrops do not have enough time to freeze before reaching the ground |
sleet | liquid water that freezes before it hits the ground |
snow | Tiny crystals of ice that fall to Earth |
hail | a form of precipitation consisting of solid ice that forms inside thunderstorm updrafts |
rain gauge | used by meteorologists to determine the amount of rain that falls in a particular area |
coriolis effect | the result of Earth's rotation on weather patterns and ocean currents |
trade winds | a wind blowing almost constantly toward the equator from an easterly direction |
polar easterlies | dry and cold prevailing winds that blow from the east |
prevailing westerlies | winds in the middle latitudes between 35 and 65 degrees latitude |
wind | the movement of air near Earth's surface. |
wind vane | an instrument that can measure wind direction |
anemommter | an instrument that measures wind speed |
barometer | A barometer measures air pressure |
low pressure | inclement weather (such as cloudy, windy, with possible rain or storms |
high pressure | the winds tend to be light and blow in a clockwise direction |
air pressure | a type of cloud forming a thick uniform gray layer at low altitude, from which rain or snow often falls (without any lightning or thunder). |
occluded fronts | a composite front produced by occlusion. |
stationary fronts | a front between warm and cold air masses that is moving very slowly or not at all |
jet stream | a fast, narrow current of air flowing from west to east that encircles the globe |
gulf stream | a relatively warm ocean current flowing northeastwards off the Atlantic coast of the US from the Gulf of Mexico. |
el nino | a climate pattern that describes the unusual warming of surface waters in the eastern equatorial Pacific Ocean |
la nina | the periodic cooling of ocean surface temperatures in the central and east-central equatorial Pacific. |
cold fronts | cold air mass runs into a warm air mass and passes it up causing a cold front |
warm fronts | warms fronts happen when a air mass overtakes a cool air mass |