Q. Consider the following statements regarding the Inter Tropical Convergence Zone (ITCZ):
1.It is a high-pressure zone located near to the equator.
2.It is a zone where air tends to ascend.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: B

Explanation: The Inter Tropical Convergence Zone (ITCZ) is a low-pressure zone located at the equator where trade winds converge, and so, it is a zone where air tends to ascend.

  • In July, the ITCZ is located around 20°N-25°N latitudes (over the Gangetic plain), sometimes called the monsoon trough.
  • This monsoon trough encourages the development of thermal low over north and northwest India.
  • Due to the shift of ITCZ, the trade winds of the southern hemisphere cross the equator between 40° and 60°E longitudes and start blowing from southwest to northeast due to the Coriolis force.
  • It becomes southwest monsoon. In winter, the ITCZ moves southward, and so the reversal of winds from northeast to south and southwest takes place. They are called northeast monsoons.

Source: NCERT – Fundamental of Physical Geography