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The ITCZ is visible as a band of clouds encircling Earth near the Equator. The Intertropical Convergence Zone (ITCZ / ɪtʃ / ITCH, or ICZ), [1] known by sailors as the doldrums[2] or the calms because of its monotonous windless weather, is the area where the northeast and the southeast trade winds converge. It encircles Earth near the thermal ...
The "doldrums" is a popular nautical term that refers to the belt around the Earth near the equator where sailing ships sometimes get stuck on windless waters. This NASA satellite image shows the Inter-Tropical Convergence Zone, known to sailors around the world as the doldrums. Known to sailors around the world as the doldrums, the Inter ...
Jan 8, 2024 · The doldrums refer to the Intertropical Convergence Zone, a calm, windless region close to the Equator where the northeastern and southeastern trade winds converge and collide. Sailors used the nautical term during the 19th century to describe this part of the ocean with little to no wind activity. "The doldrums" is an old nautical term used by ...
Mar 30, 2019 · The "doldrums" is a popular nautical term that refers to the belt around the Earth near the equator where sailing ships sometimes get stuck on windless waters. Known to sailors around the world ...
- Doldrums
- Horse Latitudes
- Trade Winds
Sailors noticed the stillness of the rising (and not blowing) air near the equator and gave the region the depressing name "doldrums." The doldrums, usually located between 5° north and 5° south of the equator, are also known as the Intertropical Convergence Zoneor ITCZ for short. The trade winds converge in the region of the ITCZ, producing convec...
Between about 30° to 35° north and 30° to 35° south of the equator lies the region known as the horse latitudes or the subtropical high. This region of subsiding dry air and high pressure results in weak winds. Tradition states that sailors gave the region of the subtropical high the name "horse latitudes" because ships relying on wind power stalle...
Blowing from the subtropical highs or horse latitudes toward the low pressure of the ITCZ are the trade winds. Named from their ability to quickly propel trading ships across the ocean, the trade winds between about 30° latitude and the equator are steady and blow about 11 to 13 miles per hour. In the Northern Hemisphere, the trade winds blow from ...
- Matt Rosenberg
doldrums, equatorial regions of light ocean currents and winds within the intertropical convergence zone (ITCZ), a belt of converging winds and rising air encircling Earth near the Equator. The northeast and southeast trade winds meet there; this meeting causes air uplift and often produces clusters of convective thunderstorms.
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6 min read. The doldrums, also known as the Intertropical Convergence Zone (ITCZ), is a belt around the Earth that extends approximately 5 degrees north and south of the equator. It is characterized by calm or light variable winds and thunderstorms. The doldrums are caused by the convergence of the trade winds from the north and south.
