RT annotation
T1 Tidally-induced submesoscale features in the atlantic jet and Western Alboran Gyre. A study based on HF radar and satellite images
A1 Romero Cózar, Jeanette
A1 Chioua, Jamal
A1 Bolado Penagos, Marina
A1 Reyes Pérez, Julio
A1 Gómiz Pascual, Juan Jesús
A1 Vázquez, Á.
A1 Sirviente Alonso, Sara
A1 Bruno Mejías, Miguel
A2 Física Aplicada
K1 Atlantic jet, Western alboran gyre, Submesoscale, Coastal radar, Strait of gibraltar, Vorticity
AB An analysis is presented of the submesoscale tidally-induced anticyclonic eddies formed at the eastern mouth ofthe Strait of Gibraltar and their role in explaining mesoscale features of the Atlantic Jet – Western Alboran Gyre(AJ-WAG) system. These eddies have been identified for the first time using an observational approach based onthe analysis of High Frequency Radar (HFR) derived surface currents on the eastern mouth of the Strait which hasbeen complemented with the analysis of Sea Surface Temperature (SST) satellite images. It is found that themajor source of positive vorticity to the AJ is provided by its interaction with these anticyclonic eddies which inturn help maintain the water feeding of the upper branch of the WAG. This new role in maintaining the WAG isadded to others previously recognized by other authors based on the supply of negative vorticity that theseeddies provide to the whole WAG. In addition, these tidally-induced eddies may contribute to the destabilizationof the AJ-WAG system when strong and persistent easterly winds coincide with periods of high tidal currentamplitude. In these cases, meteorological forcing produces a weak and southward deflected AJ almost disconnectedfrom a displaced eastward WAG. The WAG in turn is being flattened by an overdeveloped North WesternCyclonic Gyre (NWCG) that may be favored by the action of the mentioned eddies.
PB Academic Press
SN 0272-7714
YR 2020
FD 2020
LK http://hdl.handle.net/10498/30837
UL http://hdl.handle.net/10498/30837
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026