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The term originally derives from the early fourteenth century sense of trade (in late Middle English) still often meaning "path" or "track". [2] The Portuguese recognized the importance of the trade winds (then the volta do mar, meaning in Portuguese "turn of the sea" but also "return from the sea") in navigation in both the north and south Atlantic Ocean as early as the 15th century. [3]
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 winds that flow to the west (from the east, easterly wind) at the ground level in the Hadley cell are called the trade winds. Though the Hadley cell is described as located at the equator, it shifts northerly (to higher latitudes) in June and July and southerly (toward lower latitudes) in December and January, as a result of the Sun's ...
This established the standard Spanish route to the Americas: south to the Canary Islands, west on the trade winds to the Caribbean, then beat against the wind north of Cuba using the Florida Current to the Gulf Steam, then use it to go north to the westerlies which led directly home. Since wind systems move north in summer and south in winter ...
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.
George Hadley (12 February 1685 – 28 June 1768) was an English lawyer and amateur meteorologist who proposed the atmospheric mechanism by which the trade winds are sustained, which is now named in his honour as Hadley circulation. As a key factor in ensuring that European sailing vessels reached North American shores, understanding the trade ...
President Joe Biden’s final days in office were all about cementing the United States’ well established lead over China in the market for artificial intelligence.
Map of the five major ocean gyres Route from Philippines to Acapulco, Mexico Portuguese trade routes (blue) and the Spanish trade routes (white). Portuguese ships went almost to Brazil before rounding Africa and to the Azores before turning east to Lisbon. The Spanish Manila galleons used the northern Trade winds going west and the westerlies ...