Explanation:

Doldrums, also known as equatorial calms, equatorial regions of light ocean currents and winds inside the intertropical convergence zone (ITCZ), a belt of converging winds and the rising air encircling the earth near the Equator. • The Doldrums are the regions of the Atlantic and the Pacific oceans that have little if any wind. Since sunlight beams down directly on the area nearby the equator. • This heating makes the air to warm and to rise straight up rather than below horizontally. • The result is very little or no wind, sometimes for weeks on the ends. • The Doldrums are situated a little north of the equator, but the effects can be felt from even five degrees north of the equator to five degrees south of it.

• The trade winds border with the Doldrums both to the north and to the south direction. • The rising moist air in the Doldrums may spawn the tropical storms and hurricanes. • Almost all Atlantic hurricane arises in/near the Doldrums. • The unexpected/unpredictability of the weather, either no winds or even potential hurricanes, shape the Doldrums one of the least favourite sailing lanes back when all those ships had to power them beyond the ocean was their sails.