%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Pietri, A.
%A Echevin, Vincent
%A Testor, P.
%A Chaigneau, Alexis
%A Mortier, L.
%A Grados, C.
%A Albert, A.
%T Impact of a coastal-trapped wave on the near-coastal circulation of the Peru upwelling system from glider data
%D 2014
%L fdi:010062065
%G ENG
%J Journal of Geophysical Research.Oceans
%@ 2169-9275
%K coastal wave ; Peru ; upwelling ; current
%K PEROU ; PACIFIQUE
%M ISI:000333816100035
%N 3
%P 2109-2120
%R 10.1002/2013jc009270
%U https://www.documentation.ird.fr/hor/fdi:010062065
%> https://www.documentation.ird.fr/intranet/publi/2014/06/010062065.pdf
%V 119
%W Horizon (IRD)
%X Geostrophic alongshore velocity data from a glider repetitive section off the coast of Peru (14 degrees S) are used to study the cross-shore structure and temporal variability of the Peru current system during a 5 week period in April-May 2010. Besides providing substantial information on the surface frontal jet associated with the Peru Coastal Current and the surfacing Peru-Chile Undercurrent that flows poleward trapped on the continental shelf and slope, the glider data reveal the presence of an intense deep equatorward current, which transports up to approximate to 2.5 Sv. The dynamics of this current are investigated using an eddy-resolving regional model. The variability of the vertically sheared alongshore flow is shown to be related to the passage of a poleward propagating coastal-trapped wave likely of equatorial origin. Solutions from a two-dimensional, linear, coastal wave model suggest that the alongshore current observed vertical structure is associated with the second and third baroclinic modes of the coastal-trapped wave.
%$ 032 ; 020