What phenomenon moves north and south of the geographic equator with the sun?

The phenomenon that moves north and south of the geographic equator with the sun is known as the doldrums. This area is typically characterized by low wind speeds and calm weather conditions, primarily due to the rising warm air at the equator.

As the sun moves northward during the summer months, the region of the doldrums shifts toward the Tropic of Cancer, and conversely, as the sun moves southward in the winter, the doldrums shift toward the Tropic of Capricorn. This movement corresponds to the Intertropical Convergence Zone (ITCZ), where trade winds from the northern and southern hemispheres meet, leading to rising air and the often calm, unstable weather typical of the doldrums.

In contrast, trade winds are steady winds that blow toward the equator from both hemispheres but do not specifically move with the sun's position throughout the year. The polar easterlies are winds that occur closer to the poles and do not exhibit the same migratory behavior relative to the sun. The westerlies blow from the subtropics toward the polar regions at mid-latitudes, and similarly, they do not align with the seasonal movement of the sun across the equator. Therefore, the doldr