@article{fdi:010074957, title = {{P}ersistent lagrangian transport patterns in the northwestern {G}ulf of {M}exico}, author = {{G}ough, {M}. {K}. and {B}eron-{V}era, {F}. {J}. and {O}lascoaga, {M}. {J}. and {S}heinbaum, {J}. and {J}ouanno, {J}ulien and {D}uran, {R}.}, editor = {}, language = {{ENG}}, abstract = {{P}ersistent {L}agrangian transport patterns at the ocean surface are revealed from climatological {L}agrangian coherent structures (c{LCS}s) computed from daily climatological surface current velocities in the northwestern {G}ulf of {M}exico ({NWG}o{M}). {T}he climatological currents are computed from daily velocities produced by an 18-yr-long free-running submesoscale-permitting {N}ucleus for {E}uropean {M}odelling of the {O}cean ({NEMO}) simulation of the {G}ulf of {M}exico. {D}espite the intense submesoscale variability produced by the model along the shelf break, which is found to be consistent with observations and previous studies, a persistent mesoscale attracting barrier between the {NWG}o{M} shelf and the deep ocean is effectively identified by a hook-like pattern associated with persistent strongly attracting c{LCS}s. {S}imulated tracer and satellite-tracked drifters originating over the shelf tend to be trapped there by the hook-like pattern as they spread cyclonically. {T}racers and drifters originating beyond the shelf tend to be initially attracted to the hook-like pattern as they spread anticyclonically and eventually over the deep ocean. {T}he findings have important implications for the mitigation of contaminant accidents such as oil spills.}, keywords = {{O}cean ; {C}ontinental shelf/slope ; {L}agrangian circulation/transport ; {M}esoscale processes ; {N}onlinear dynamics ; {O}cean circulation ; {ATLANTIQUE} ; {MEXIQUE} {GOLFE}}, booktitle = {}, journal = {{J}ournal of {P}hysical {O}ceanography}, volume = {49}, numero = {2}, pages = {353--367}, ISSN = {0022-3670}, year = {2019}, DOI = {10.1175/jpo-d-17-0207.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010074957}, }