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Probability assessment of pressure patterns over the British Isles
Author(s) -
ElKadi A.K.A.,
Smithson P.A.
Publication year - 2000
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/1097-0088(200009)20:11<1351::aid-joc542>3.0.co;2-d
Subject(s) - circulation (fluid dynamics) , climatology , context (archaeology) , atmospheric circulation , persistence (discontinuity) , general circulation model , period (music) , environmental science , meteorology , geography , history , geology , climate change , oceanography , engineering , archaeology , physics , geotechnical engineering , aerospace engineering , acoustics
The aim of this paper is to advance our understanding of the British atmospheric circulation. Using an automated classification scheme, the circulation changes of pressure patterns (PP) are investigated. Within a framework of the interrelationships between PPs, the transitions and persistence of the atmospheric circulation will be evaluated. The probability assessment of each PP as a measure of its persistence from day‐to‐day, as well as the preferred transition between the PPs, will be outlined. Circulation groups based on the preferred links between the PPs are discussed and outlined. The transitional and persistence sequences confirm that the predominant atmospheric circulation over the British Isles consists of eastward moving PPs. The British circulation in the period of 1977–1986 is characterized by a persistence mode rather than a transitional one. Two major circulation modes are identified as being most persistent and each is usually transitional to itself. The PPs are then put into the context of the North Atlantic circulation. Copyright © 2000 Royal Meteorological Society