Weather Junior Cert Geography

Terms in this set (28)

Weather
The day to day state of the atmosphere over any place on earths surface
Meteorologist
A person who studies and forecasts weather
Meteorology
The study of weather
Weather stations in Ireland
Belmullet, Kilkenny, Birr, Mullingar, Rosslare
Isobars
Lines on the map which connect places of equal atmospheric pressure
Isotherms
Lines on a map that joins places of equal temperature
Isohyets
Lines on a map that connect places of equal rainfall
Isohels
Lines on a map that connect places of equal sunshine
Thermometer
Measures temperature
Hygrometer
Measure humidity
Barometer
Measures atmospheric pressure
Rain gauge
Measures precipitation
Wind vane
Measures wind direction
Anemometer
Measures wind force (speed)
Campbell Stokes Recorder
Measures sunshine
Temperature
Measures how hot or cold the air is
Mean
Another word for average
The Beaufort Scale
Measures wind force
Clouds
A collection of tiny water droplets and/or ice crystals held in the atmosphere
Stratus cloud
A layer of cloud. Weather = overcast or steady rain
Cumulus clouds
Weather = heavy showers
Cirrus clouds
Weather = good weather
Cumulonimbus
Weather = thunderstorms
Conventional rainfall
Caused by the sun heating the earths surface. Warm air rises, containing water vapour which cools and condenses to form clouds
Cyclonic or frontal rainfall
When two air masses of warm and cold air meet, causing a front
Relief rainfall
Warm air containing water vapour is forced to rise over a mountain. This causes the air to cool and the moisture in the air condenses to form clouds
Hydrosphere
The collective mass of water found on, under and over the surface of the earth.
Water cycle / hydrological cycle
The cycle of evaporation, condensation, precipitation and run off
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