Doldrum are 1. equatorial calms 2. calm and light winds 3. roaring

Doldrum are

  • 1. equatorial calms
  • 2. calm and light winds
  • 3. roaring forties
  • 4. variable both in position and in extent

Select the correct answer using the code given below :

1, 2 and 4
2 and 3 only
1 and 3
2, 3 and 4
This question was previously asked in
UPSC CAPF – 2019
The correct answer is A) 1, 2 and 4. Doldrums are characterized by being equatorial calms, having calm and light winds, and being variable in position and extent. Statement 3, “roaring forties,” refers to completely different latitudes and wind patterns.
– The doldrums are a belt of low atmospheric pressure around the equator (typically between 5°N and 5°S latitude).
– This zone is characterized by calm or very light and variable winds due to the convergence of trade winds and rising air.
– The location and width of the doldrums (Intertropical Convergence Zone – ITCZ) are not fixed but shift seasonally with the overhead sun.
– The “Roaring Forties” are strong westerlies found between latitudes 40°S and 50°S, known for strong winds and large waves.
Historically, the doldrums were problematic for sailing ships that relied on wind power, as they could get stuck for days or weeks. Modern ships are less affected, but the zone is still associated with significant convective weather and squalls.