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5 Cards in this Set
- Front
- Back
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What are characteristics of the TMC in India and Bangladesh? |
Hot temperatures all year round (18-30C) Rainfall is high (3000mm/year). Most rain falls in the wet season Winds change direction with seasons- wet, towards land. dry, towards sea |
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What are the reasons for this climate? |
The Sun- (overhead all year round) The ITCZ - seasonal changes. Differential heating capacities of land and water lead to seasonal contrasts in temperature. |
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What is the ITCZ? |
An area of intense low pressure, associated with an area of precipitation that moves North and South of the equator throughout the year. |
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Describe the reasons for the climate in the dry season/January. |
In the cool, dry season, the ITCZ moves South. Therefore the ITCZ is over the ocean and a zone of high pressure sits over the land. The landmass of Asia experiences intense cooling. Wind is forced from the land to the ocean. These NE winds blow away from high pressure, bringing dry conditions to the Indian Subcontinent. |
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Describe the reasons for the climate in the wet season/July. |
In this season, the ITCZ moves North. It often moves further North than expected due to the intense heating that takes place in Northern India. This brings low pressure and heavy rainfall to the tropical areas. High pressure over the Indian Ocean results in moist, unstable air being drawn in, resulting in heavy rain. Rainfall is often increased by the uplift of air over the foothills of Himalayan mountains and by intense convection. |
