Explanation:

From the Equator to Pole the idealised global pattern of surface wind is Doldrum > Trade wind > Westerlies > Easterlies

The trade winds or easterlies are the permanent east-to-west prevailing winds that flow in the Earth's equatorial region (between 30°N and 30°S latitudes).

The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner.

The trade winds are air currents closer to Earth's surface that blow from east to west near the equator. The trade winds blow from east to west near the equator.

The Intertropical Convergence Zone, known by sailors as the doldrums or the calms because of its monotonous, windless weather, is the area where the northeast and southeast trade winds converge.