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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 ...
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 ]
Ridge line extending to the left of the high pressure center (H). In meteorology a ridge or barometric ridge is an elongated area of relatively high atmospheric pressure compared to the surrounding environment, without being a closed circulation. [1] It is associated with an area of maximum anticyclonic curvature of wind flow.
The subtropical ridge is a warm core high-pressure system, meaning it strengthens with height. [23] Many of the world's deserts are caused by these climatological high-pressure systems. [24] Some climatological high-pressure areas acquire regionally based names.
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.
This area of high pressure is part of the great subtropical belt of anticyclones called the subtropical ridge. The centre of the high pressure region tends to follow the seasonal variation in position of the sun, moving south in the southern summer and north in the southern winter. This affects the climate of the adjacent continental areas ...
This circulation is known as the Hadley cell and leads to the formation of the subtropical ridge. [13] Many of the world's deserts are caused by these climatological high-pressure areas, [14] within the subtropics. This regime is known as a semiarid/arid subtropical
A great portion of the world's deserts are located within the subtropics, due to the development of the subtropical ridge. Within the humid monsoon regions in the subtropics such as Northern Vietnam (including Hanoi ), a wet season is seen annually during the summer, which is when most of the yearly rainfall falls.