The doldrums actually refer to the convergence of the trade winds near the Equator. ... The trade winds were named for their ability to quickly propel trading ships across the ocean. However, when these sailing ships entered the doldrums, they stalled, causing distress among the crews

The doldrums actually refer to the convergence of the trade winds near the Equator. This results in a shifting belt of dead calm to light breezes. The trade winds were named for their ability to quickly propel trading ships across the ocean. ... This area is also known as the Intertropical Convergence Zone.

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