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A tropical upper tropospheric trough (TUTT), also known as the mid-oceanic trough, [1] is a trough situated in the upper-level (at about 200 hPa) tropics. Its formation is usually caused by the intrusion of energy and wind from the mid-latitudes into the tropics. It can also develop from the inverted trough adjacent to an upper level anticyclone.
A trough is an elongated area of lower air pressure. Since pressure is closely linked to wind, there are often changes in wind direction across a trough. If a trough forms in the mid-latitudes, a temperature difference at some distance between the two sides of the trough usually exists and the trough might become a weather front at some
The summer tropical upper tropospheric trough is a dominant feature over the trade wind regions of the North Atlantic Ocean, Gulf of Mexico, and Caribbean Sea, and that the lower tropospheric responses to the tropical upper tropospheric trough in the North Atlantic are differ from those in the North Pacific. [5]
Tropical upper tropospheric trough, a band of moisture common in tropical regions; ARkStorm, a hypothetical storm by the same name that could affect California; Great Flood of 1862 (massive flooding in US West) Atmospheric lake
Kona lows, most extratropical cyclones, and tropical upper tropospheric cyclones are cold core lows. In the eastern half of the north Pacific Ocean and north Indian Ocean, the formation of a weak circulation underneath a mid to upper-tropospheric low which has cut off from the main belt of the westerlies during the cold season is called a subtropical cyclone.
A tropical cyclone is a storm system characterized by a low-pressure ... upper level cold lows can break off from the base of the tropical upper tropospheric trough ...
Tropical Storm Dorian as a tropical wave just north of Puerto Rico on July 29, 2013.. A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which moves from east to west across the tropics, causing areas of ...
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...