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Tropical Climate and Weather
Quick questions on The monsoon and the ITCZ explained: H2 Geography
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is migration of the ITCZ?Show answer
The ITCZ is not fixed. It follows the latitude of maximum surface heating, which in turn follows the overhead Sun with a lag of a few weeks. So the ITCZ migrates north during the northern summer (toward the Tropic of Cancer) and south during the southern summer (toward the Tropic of Capricorn). Its position determines the rainfall pattern:
What is the monsoon mechanism?Show answer
A monsoon is a seasonal reversal of prevailing winds and rainfall, most strongly developed over South and Southeast Asia. Its main driver is the differential heating of land and sea:
What are reinforcing factors?Show answer
The pressure reversal is the spine, but it is reinforced by the migration of the ITCZ over the subcontinent in summer and by the orographic uplift that relief provides as moist monsoon air arrives.
What is q1?Show answer
Explain why some equatorial places have two wet seasons a year. [3 marks]
What is q2?Show answer
State the main driver of the monsoon and explain its effect in summer. [3 marks]
What is q3?Show answer
Explain why the northeast monsoon over much of India is dry. [2 marks]
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