TOPIC weather / climate

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Transcript TOPIC weather / climate

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
Isotherms
Lines that join
places of equal
temperature
Pressure
Millibars
Barometer
Wind Direct
Vane
and wind
speed / mph
Isobars
Anticyclone Warm dry sunny
Depression Cold wet windy
Weather Days ?
Factors affecting temperature.
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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.
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Relief Rain.
Where ? Britain N+W
mountain areas around the world.
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Frontal Rain
Across Britain.
Warm air collides with
Cold air.
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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