Abstract:
:A primitive-equation model has been used to investigate the meteorologically-driven circulation of the Bay of Algeciras. It is shown that the mean circulation of Atlantic Water (AW) is characterized by an anticyclonic cell, while Mediterranean Water (MW) follows a preferred cyclonic pathway. Meteorological forcing distorts substantially the AW mean circulation pattern, and only modulates that of the MW. Winds drive a vertical circulation cell in the Atlantic layer consistent with Ekman dynamics, whereas the horizontal circulation pattern is markedly dependent on the swift Atlantic jet entering the Mediterranean and changes from clearly anticyclonic to cyclonic as the jet separates or approaches the strait's northern shoreline. This occurs through atmospheric pressure-driven acceleration/deceleration of the jet, in agreement with internal hydraulics theory predictions. It is also found that the renewal of AW is largely modulated by tides, with meteorological forcing playing a secondary role. The opposite applies to the renewal of MW.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Sánchez-Garrido JC,Lafuente JG,Sammartino S,Naranjo C,de los Santos FJ,Álvarez Fanjul Edoi
10.1016/j.marpolbul.2014.01.036subject
Has Abstractpub_date
2014-03-15 00:00:00pages
97-106issue
1-2eissn
0025-326Xissn
1879-3363pii
S0025-326X(14)00037-Xjournal_volume
80pub_type
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