An in-depth summary of Climatology, including:
1. Global Air Circulation
2. Cyclones
3. South African Climate
4. Synoptic Charts
5. Local Weather
6. Micro-Climate
7. Urban Climates
8. Climate Change
, 1. Global Air Circulation:
The earth’s axis is titled at 23,50 to the vertical.
Main cause of the different seasons and as the
earth revolves around the sun each place on earth
will receive a different amount of sunlight.
Cause the AIR PRESSURE to change which causes
wind and weather to change.
, Primary Circulation:
Equatorial areas = receive a lot of heat (direct
sunlight) and thus the air RISES forming a low
pressure cell. Equatorial Low Pressure
Polar areas = receive little sunlight or insolation
(incoming solar radiation) and thus they
experience high pressure cells. Polar High
Pressure
, Primary Circulation:
The air rises near the equator, it cools and then
descends at about 300 from the equator.
At 600 N & S of the equator the warm air from the
300 region and the cold air from the poles
converge – these two air masses have different
characteristics (density and moisture) AND DO NOT
MIX – warmer air rises over colder air forming
another LP.
The 4 zones will shift north and south as the sun’s
rays move between the tropics.
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