Aleutian low


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Aleutian low

[ə′lü·shən ‚lō]
(meteorology)
The low-pressure center located near the Aleutian Islands on mean charts of sea-level pressure; represents one of the main centers of action in the atmospheric circulation of the Northern Hemisphere.
References in periodicals archive ?
The extremely late-opening seasons are characterized by an anomalously strong Aleutian low in the preceding November.
During the cold season (October through April), the Aleutian Low appears in the Gulf of Alaska, transporting moisture at upper levels into the MRB from the southwest (e.
The Aleutian Low in the Gulf of Alaska facilitates the transport of heat and moisture from the Gulf of Alaska into the MRB.
A positive PNA accompanied by positive ENSO produces an anomalously strong southerly flow in the eastern North Pacific--western North America region (van Loon and Madden, 1981) owing to the stronger Aleutian Low (Szeto et al.
Storms are high drama at In fall, the Wickaninnish Inn this luxe 9-year-old inn Aleutian Low draws Osprey Lane; www.
Changes in the character of the Aleutian Low is a common factor for many of the oceanic changes we see," said Dr.
During the winters from 1976-77 through 1997-98, the Aleutian Low tended to be much more intense than it had been in nearly all the winters in the previous 30 years.
the Aleutian Low and El Nino-Southern Oscillations) and width of the continental shelf around breeding islands on breeding success and population trends.
Positive values are associated with a stronger Aleutian Low, which advects more relatively warmer air into Alaska (particularly in winter, when this semipermanent feature is the strongest).
The midwinter increase is believed to be caused by increased advection due to a more intense Aleutian Low, while the April maximum might be caused by a change in the radiation budget.
The result for the cold seasons was a stronger Aleutian Low, which changed the wind to a somewhat more southerly direction, and therefore the Alaska Range has sheltered Interior Alaska from this moist air.
The fairly strong decrease in pressure in winter over the 60-year time period is believed to be related to the change of the PDO value in the mid-1970s, which led to a strengthening of the Aleutian Low and the consequent lowering of the atmospheric pressure in Interior Alaska.