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  2. Azores High - Wikipedia

    en.wikipedia.org/wiki/Azores_high

    The Azores High also known as North Atlantic (Subtropical) High/Anticyclone or the Bermuda-Azores High, is a large subtropical semi-permanent centre of high atmospheric pressure typically found south of the Azores in the Atlantic Ocean, at the Horse latitudes. It forms one pole of the North Atlantic oscillation, the other being the Icelandic Low.

  3. Horse latitudes - Wikipedia

    en.wikipedia.org/wiki/Horse_latitudes

    The subtropical ridge starts migrating poleward in late spring reaching its zenith in early autumn before retreating equatorward during the late fall, winter, and early spring. The equatorward migration of the subtropical ridge during the cold season is due to increasing north-south temperature differences between the poles and tropics. [ 9 ]

  4. South Pacific High - Wikipedia

    en.wikipedia.org/wiki/South_Pacific_High

    The South Pacific High is a semi-permanent subtropical anticyclone located in the southeast Pacific Ocean. The area of high atmospheric pressure and the presence of the Humboldt Current in the underlying ocean make the west coast of Peru and northern Chile extremely arid.

  5. North Pacific High - Wikipedia

    en.wikipedia.org/wiki/North_Pacific_High

    The North Pacific High is a semi-permanent, subtropical anticyclone located in the northeastern portion of the Pacific Ocean, located northeast of Hawaii and west of California. It is part of the great belt of anticyclones known as the subtropical ridge .

  6. Subtropics - Wikipedia

    en.wikipedia.org/wiki/Subtropics

    This regime is known as a semiarid/arid subtropical climate, which is generally in areas adjacent to powerful cold ocean currents. Examples of this climate are the coastal areas of Southern Africa and the west coast of South America. [15] The humid subtropical climate is often on the western side of the subtropical high. Here, unstable tropical ...

  7. Anticyclone - Wikipedia

    en.wikipedia.org/wiki/Anticyclone

    Because a positive feedback loop develops between the convective tropical cyclone and the upper level high, the two systems are strengthened. This loop stops once ocean temperatures cool to below 26.5 °C (79.7 °F), [17] reducing the thunderstorm activity, which then weakens the upper-level high-pressure system.

  8. South Atlantic High - Wikipedia

    en.wikipedia.org/wiki/South_Atlantic_High

    South Atlantic High on the right. South Atlantic High is a semipermanent pressure high centered at about 25°S, 15°W, in the Atlantic Ocean. It is also called the St. Helena High, Saint Helena island being the only land in the area. It can stretch thousands of miles across the South Atlantic.

  9. Australian High - Wikipedia

    en.wikipedia.org/wiki/Australian_High

    The Australian High, also known as the Australian subtropical ridge, [1] is a large, semi-permanent high pressure area or subtropical anticyclone that seasonally vacillates between the Great Australian Bight in the south to the Northern Territory in the north. [2] It is generally located between 25 and 40 degrees of south latitude, depending on ...