horse latitude

Thân thiện

Sailors in the age of sail dreaded the becalming winds of the horse latitude.

Definition

Noun: 1. A belt of calm or light winds: "Horse latitude" refers to either of two subtropical oceanic regions, located at approximately 30 degrees north and 30 degrees south of the equator. These areas are characterized by high atmospheric pressure, resulting in predominantly calm or very light, variable winds.

Usage

• The term is used in meteorology, geography, and maritime contexts to describe specific atmospheric and oceanic conditions.
• It is typically used in the plural form "horse latitudes."
• Example: horse latitudes.

Advanced Usage

• Etymology: The origin of the term is debated. One common theory suggests that ships transporting horses to the Americas, becalmed in these regions, were forced to throw dead or dying horses overboard to conserve water.
• Meteorological Context: The horse latitudes are the descending limbs of the Hadley cell circulation, where dry, high-pressure air sinks, inhibiting cloud formation and leading to clear skies and arid conditions over the adjacent landmasses (e.g., deserts).

Variants and Related Words

• Subtropical high: A more technical, synonymous term for the high-pressure zone associated with the horse latitudes.
• Doldrums: Refers to the Intertropical Convergence Zone (ITCZ) near the equator, another region known for calm winds. It is a related but distinct concept.

Synonyms

• Subtropical high belt
• Calms of Cancer (for the northern hemisphere belt)
• Calms of Capricorn (for the southern hemisphere belt)

Học thuật

Noun

1. either of two belts or regions near 30 degrees north or 30 degrees south; characterized by calms and light-baffling winds