TOPIC Weather Climate Look out of the window! The conditions that we are experiencing now makes our weather. It is only short term over a few days. When our weather has been studied for many years we gain an insight into what it will probably be like in the future. This is called our CLIMATE.

What elements make up our weather ? Rainfall mms Rain Gauge Temperature *C Thermometer Pressure Millibars Barometer Wind Direct Vane and wind speed / mph Isotherms Lines that join places of equal temperature Isobars Anticyclone Depression Warm dry sunny Cold wet windy

Weather Days ?

Factors affecting temperature. Latitude Altitude Cloud cover Aspect Urban effect Maritime effect Wind direction Gulf stream

Rainfall in Britain Which parts receive the most rainfall? Which parts receive the least rainfall? Why is this?

Types of Rainfall. Relief Rain. Where ? Britain N+W mountain areas around the world. Frontal Rain Across Britain. Warm air collides with Cold air. Convectional Rain High Temperatures Tropical Areas Barbados

Wind Direction Prevailing Winds S.W warm + wet maritime winds

Air pressure and our weather Add these labels to the map: Isobar – millibar –low pressure – high pressure – warm front – cold front -

What are isotherms?

The Urban Effect Look closely at these maps.What are they telling you?

Maritime Effect in Winter Because the sea is warmer in winter Places at the coast are warmer than places inland Oxford - *6 Brighton - *8

Maritime Effect in Summer The sea has not warmed up yet.It is still colder than the land. Places at the coast are cooler than places inland. Oxford – 21*C Brighton_- 18*C

Microclimates Places that have their own special weather conditions. Woodlands Lakes + Ponds Urban Areas + Buildings Coastal areas Mountains + Valleys