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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 ...
The Doldrums is a low pressure area from 5°N to 5°S of the Equator. Winds are famously calm here, with prevailing breeze disappearing altogether at times, making it extremely difficult to navigate through. It's a place for trade winds to meet other trade winds. The Doldrums is also known as the Inter Tropical Convergence Zone (ITCZ), because ...
Accessed 17 October 2024. The intertropical convergence zone is a belt of converging trade winds and rising air that encircles Earth’s lower atmosphere near the Equator. The rising air in this region produces high cloudiness, frequent thunderstorms, and heavy rainfall; the doldrums, oceanic regions of calm surface air, occur within the zone.
- The Editors of Encyclopaedia Britannica
- 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
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.
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What is a doldrum equatorial zone?
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.
