TOPICWeather 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

PrevailingWinds S.Wwarm + wetmaritime 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

Brighton - *8

Oxford - *6

Because the sea is warmer in winter

Places at the coast are warmer than places inland

Maritime Effect in Summer

Brighton_- 18*C

Oxford – 21*C

The sea has not warmed up yet.It is still colder than the land. Places at the coast are cooler than places inland.

Microclimates

• Places that have their own special weather conditions.

• Woodlands

• Lakes + Ponds

• Urban Areas + Buildings

• Coastal areas

• Mountains + Valleys