What are the seven components of the general circulation?

1. The Hadley Cell: This is a thermally direct cell of atmospheric circulation in which warm, moist air rises near the equator, flows poleward at high altitudes and returns to the surface at a subtropical zone when it's warm and dry.

2. The Ferrel Cell: This is an atmospheric circulation cell that is driven by the Coriolis effect and it transports heat poleward in a zig-zag or wavy flow pattern.

3. The Polar Front Jet Stream: This is a fast-moving band of air in the upper troposphere and stratosphere that is responsible for steering storms and controlling weather across the world.

4. The Subtropical Jet Stream: This is a fast-moving band of air in the upper troposphere and stratosphere located just north of the subtropics. It is responsible for transporting heat and moisture poleward.

5. The Westerlies: This is a band of prevailing winds in the middle latitudes of the Earth that blow from the west to the east. They are responsible for bringing mid-latitude storms, fronts and weather phenomena.

6. The Polar Easterlies: These are winds in the higher latitudes that blow mainly from east to west and are responsible for bringing arctic air masses to mid-latitudes and creating cold surges.

7. The International Pole-Equator Difference: This is a major component of global atmospheric circulation and it consists of an approximate 10°F/5°C temperature difference between the equator and the poles. This temperature difference is responsible for the trade winds and helps drive the Hadley Cell and Ferrel Cell of the global circulation system.

1. Intertropical convergence zone (ITCZ) 2. Trade winds 3. Subtropical highs 4. Westerlies 5. Polar front (subpolar lows) 6. Polar easterlies 7. Polar highs