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The trade winds or easterlies are permanent east-to-west prevailing winds that flow in the Earth's equatorial region. The trade winds blow mainly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere , strengthening during the winter and when the Arctic oscillation is in its warm phase.
The trade winds act as the steering flow for tropical cyclones that form over the world's oceans. [32] Trade winds also steer African dust westward across the Atlantic Ocean into the Caribbean, as well as portions of southeast North America. [33] A monsoon is a seasonal prevailing wind that lasts for several months within tropical regions.
The trade winds (also called trades) are the prevailing pattern of easterly surface winds found in the tropics near the Earth's equator, [4] equatorward of the subtropical ridge. These winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere . [ 5 ]
The atmospheric circulation pattern that George Hadley described was an attempt to explain the trade winds. The Hadley cell is a closed circulation loop which begins at the equator. There, moist air is warmed by the Earth's surface, decreases in density and rises.
The westerlies (blue) and trade winds (yellow and brown) The general atmospheric circulation. Trade winds (red), westerlies (white) and the South Pacific anticyclone (blue) [1] The westerlies, anti-trades, [2] or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude.
The second mechanism of wind currents resulting in Ekman transfer is the Trade Winds both north and south of the equator pulling surface waters towards the poles. [1] There is a great deal of upwelling Ekman suction at the equator because water is being pulled northward north of the equator and southward south of the equator.
Dark Winds is largely adapted from Tony Hillerman’s fiction novels, but the show’s themes and storylines are deeply rooted in history. In season 1, viewers learn about two pieces of Indigenous ...
Hadley had sought to explain the physical mechanism for the trade winds and the westerlies; [66] the Hadley circulation and the Hadley cells are named in honor of his pioneering work. [ 67 ] [ 68 ] Although Hadley's ideas invoked physical concepts that would not be formalized until well after his death, his model was largely qualitative and ...