1. Explain the relationship between Hadley cells, the Intertropical Convergence

Question

1. Explain the relationship between Hadley cells, the Intertropical Convergence Zone, and Subtropical Highs.

2. Within a Hadley cell, where are areas of low atmospheric pressure? Where are areas of high atmospheric pressure?

3. Hadley cell and monsoon circulation are similar in the vertical and horizontal patterns of flow. Explain how monsoon circulation produces heavy precipitation events.

4. Consider the flow of water from the oceans to the atmosphere by evaporation and the flow of water from atmosphere to the oceans by precipitation. What percent of evaporated water is returned directly to the oceans by precipitation?

A) 40% B) 71% C) 90%

5. Is precipitation to the continents balanced by the flows to the oceans and atmosphere?

Explanation / Answer

1. Hadley cell are the circulation of winds between equator and 30 degrees latitude in both hemispheres of earth. Near equator warm rising branch of Hadley cell is associated with low pressure zone known as equitorial low, region where trade winds converge forms inter tropica convergence zone. The poleward branch of Hadley cell at 30 degrees of both hemisphere causes the winds to sink called subtropical high.

2. In Hadley cell low atmospheric pressure found at equator and high pressure at 30 degrees.

3. Monsoon patterns are the examples of unequal heating of earth surface. During summer land is heated for example in Indian subcontinent causes the ITCZ to shift toward land and form low fressure area on land causes heavy precipitation.

4.90 percent of evaporated water return back directly to the ocean.

5. Yes. there is balance between outflow and inflow of water in the hydrological cycle.

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