GEOG: Weather NAT5 Flashcards
What are the five main air masses that effect the uk
Arctic Maritime Polar continental Tropical Continental Tropical Maritime Polar maritime
What is a air mass
A large volume of air which travels from one area to another
What is weather
Day to day conditions of the atmosphere
What is aspect
Refers to direction of slopes
What is used in a weather station
Thermometers Barometers Wind vanes Anemometers Rain gauges
What are air masses affected by
Systems of high and low pressure
What creates areas of low pressure
When a cold and warm air mass collide
What do warm fronts fronts bring
Increasing wind
Cloud cover
Drizzly rain
Slight rise in temperature
What do cold fronts bring
Heavier winds
Large clouds
Heavy rain
Lower temperature
Occluded fronts …..
Found near the centre of low pressure
Mixed conditions of rain and cloud cover
Where is the warm sector found
In between the warm and cold fronts
Conditions tend to settle, skies are dull and cloudy, temperatures rise and little rain
What does it indicate when isobars are widely spread
Indicates high pressure systems or anticyclones
What is a barometer
Measures air pressure
What is a rain gauge
Measures precipitation from the sky
Recorded in mm
What is a anemometer
It measures wind speed