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Weather
Term | Definition |
---|---|
Map | A flat, 2-dimensional |
Globe | A spherical scale model of Earth |
Latitude | Geographic coordinate that specifies the north or south of the Equator |
Longitude | Distance measured in degrees east or west from an imaginary line passing through Greenwich, England |
Hemisphere | A half of earth, usually divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles |
Weather | The state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, and precipitation |
Land breeze | a breeze blowing usually at night toward the sea from the more rapidly cooling land |
Sea breeze | a cooling breeze blowing generally in the daytime inland from the sea |
Air Pressure | The weight of the air pushing on everything around it |
Barometer | A weather instrument that measures air pressure |
Low Pressure | A mass of warm, rising, moist air that brings stormy weather like rain, snow and strong winds. Caused by a drop in air pressure followed by colder weather. |
High Pressure | |
El Nino | a warming of the ocean surface, or above-average sea surface temperatures, in the central and eastern tropical Pacific Ocean. |
Climate | the average weather conditions in an area over a long period |
Atmosphere | The envelope of gasses surrounding the earth |
Cirrus | White wispy clouds that form at high altitudes and are always made of ice crystals. |
Cumulus (cumulo-) | fair weather clouds with white puffy tops and dark flat bottoms |
Stratus | lowest clouds that cover the sky like a thick gray blanket. |
Nimbus/Nimbo | precipitating cloud, such as nimbostratus or cumulonimbus cloud. |
Cumulonimbus | a huge vertical cloud that can produce a thunderstorm |
Land Breeze | a breeze blowing toward the sea from the land, especially at night, because the sea is warmer than the land. |
Sea Breeze | a breeze blowing toward the land from the sea , especially during the day, because land is cooler than the sea. |
Precipitation | water that falls to the Earth’s surface as rain, snow, sleet, or hail. |
Evaporation | the process of changing from a liquid to a gas |
Condensation | the process of changing from a gas to a liquid |
Jet stream | a steady worldwide wind that blows from west to east high above Earth |
Gulf stream | a warm current that starts near the equator and moves from Florida all the way to Iceland |
air mass | a large “bubble” of air that has about the same temperature and humidity throughout it |
La Nina/El Nino | unusual warming or cooling of the seawater in the Pacific Ocean |
Temperature | the average speed of the particles in a substance |
air pressure | the weight of the air pushing on everything around it |
Humidity | water vapor in the air |
Thermometer | a tool that measures temperature |
Barometer | a weather instrument that measures air pressure |
Anemometer | a weather instrument that measures wind speed |
wind vane | a weather instrument that shows the direction the wind is coming from |
rain gauge | a weather instrument that measures rainfall |
front | a place where one air mass meets and pushes aside another air mass |
Hurricane | a very large and violent tropical storm |