RT Journal Article
T1 Ten years of marine current measurements in Espartel Sill, Strait of Gibraltar
A1 Sammartino, Simonone
A1 García-Lafuente, Jesús
A1 Naranjo-Rosa, Cristina Belén
A1 Sánchez-Garrido, José Carlos
A1 Sánchez-Leal, Ricardo
A1 Sánchez-Román, Antonio
K1 Corrientes marinas
K1 Gibraltar (Estrecho)
AB More than 10 year of Acoustic Doppler Current Profiler observations collected at the western-most sill (Espartel sill) of the Strait of Gibraltar by a monitoring station have been carefully processed to pro-vide the most updated estimation of the Mediterranean outflow. A comprehensive quality control of thefactors affecting the uncertainty of the measurements has been carried out and great care has been paid toinfer the current at the bottom layer, where direct observations are lacking. The mean outflow in the south-ern channel of the sill section has been estimated as 20.82 Sv (1 Sv 5 1 3 10 6 m3 s21 ), with an average con-tribution of the eddy fluxes of 20.04 Sv. This figure is an overestimation, as the mooring measurements,assumed valid for the whole section, ignore the lateral friction. On the other hand, it only gives the flowthrough the southern channel and disregards the fraction flowing through shallower northern part. Bothdrawbacks have been addressed by investigating the cross-strait structure of the outflow from hindcastsproduced by the MITgcm numerical model, run in a high-resolution domain covering the Gulf of C adiz andAlboran Sea basins. An overall rectifying factor of 1.039 was found satisfactory to correct the first estimate,so that the final mean outflow computed from this data set is 20.85 Sv, complemented with an uncertaintyof 60.03 Sv based on the interannual variability of the series. The temporal analysis of the series shows anoutflow seasonality of around the 8% of the mean value, with maximum outflow in early spring.
PB AGU Publications
YR 2015
FD 2015-09-19
LK https://hdl.handle.net/10630/33576
UL https://hdl.handle.net/10630/33576
LA eng
NO Sammartino, S., García Lafuente, J., Naranjo, C., Sánchez Garrido, J. C., Sánchez Leal, R., & Sánchez Román, A. (2015). Ten years of marine current measurements in Espartel Sill, Strait of Gibraltar. In Journal of Geophysical Research: Oceans (Vol. 120, Issue 9, pp. 6309–6328). American Geophysical Union (AGU). https://doi.org/10.1002/2014jc010674
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026