FN Archimer Export Format PT J TI Ocean variability over the Agulhas Bank and its dynamical connection with the southern Benguela upwelling system BT AF BLANKE, Bruno PENVEN, Pierrick ROY, Claude CHANG, Nicolette KOKOSZKA, Florian AS 1:1;2:2,3;3:2;4:3,4;5:2; FF 1:;2:;3:;4:;5:; C1 IFREMER, IRD, CNRS, Lab Phys Oceans,UBO,UMR 6523, F-29238 Brest 3, France. Ctr IFREMER Brest, IFREMER, CNRS, Lab Phys Oceans,UBO,IRD,UMR 6523, F-29280 Plouzane, France. UCT, Dept Oceanog, Cape Town, South Africa. CSIR, Ctr High Performance Comp, ZA-7700 Cape Town, South Africa. C2 IFREMER, FRANCE UBO, FRANCE UNIV CAPE TOWN, SOUTH AFRICA CSIR (SOUTH AFRICA), SOUTH AFRICA IRD, FRANCE SI UBO BREST SE PDG-DRO-UMLPO PDG-DOP-DCB-OPS-LPO IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-univ-france copubli-int-hors-europe copubli-sud IF 3.082 TC 10 UR https://archimer.ifremer.fr/doc/2009/publication-7388.pdf LA English DT Article AB This study analyzes the oceanic pathway connecting the Agulhas Bank to the southern Benguela upwelling system by means of a quantitative Lagrangian interpretation of the velocity field calculated by a high-resolution numerical simulation of the ocean around the southwestern tip of Africa. The regional ocean model is forced with National Centers for Environmental Prediction surface winds over 1993-2006 and offers a relevant numerical platform for the investigation of the variability of the water transferred between both regions, both on seasonal and intraseasonal time scales. We show that the intensity of the connection fluctuates in response to seasonal wind variability in the west coast upwelling system, whereas intraseasonal anomalies are mostly related to the organization of the eddy field along the southwestern edge of the Agulhas Bank. Though the study only considers passive advection processes, it may provide useful clues about the strategy adopted by anchovies in their selection of successful spawning location and period. The pathway under investigation is of major interest for the ecology of the southern Benguela upwelling system because it connects the spawning grounds on the Agulhas Bank with the nursery grounds located on the productive upwelling off the west coast. PY 2009 PD DEC SO Journal of Geophysical Research ( JGR ) - Oceans SN 0148-0227 PU American Geophysical Union VL 114 IS C12028 UT 000273257500001 BP 1 EP 15 DI 10.1029/2009JC005358 ID 7388 ER EF