What is Atmospheric Circulation ?

What are the role of atmospheric circulation?

• Atmosphere provides the most rapid communication between geographic regions within climate system.

• Leads to areas of high rainfall, when the water froms the oceans is evaporated and carried in the air to land.

• Atmospheric motions carry heat from the tropics to the polar regions.

• Winds supply momentum to ocean surface currents that transport heat and oceanic trace constituents such as salt and nutrients.

What is the factor for atmospheric processes?

By increasing the elevations (mountains), means that it has ...... density and ...... pressure.

What is this?

• Low Pressure

• High Pressure

What is this?

• Low Pressure

• High Pressure

What happened when high and low pressure occured together?

What is an Isobar ?

Why the pressure gradient move from high-pressure air to low pressure air ?

During summer, ITCZ are more frequent to move to the ....... direction.

• North

• West

• East

• South