FN Archimer Export Format
PT J
TI Impact of the small-scale elongated filaments on the oceanic vertical pump
BT 
AF LAPEYRE, Guillaume
   KLEIN, Patrice
AS 1:1,2,3;2:2,4;
FF 1:;2:;
C1 Meteorol Dynam Lab, Paris, France.
   IFREMER, Lab Phys Oceans, F-29280 Plouzane, France.
C2 METEOROL DYNAM LAB, FRANCE
   IFREMER, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-DOP-DCB-OPS-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.125
TC 84
UR https://archimer.ifremer.fr/doc/2006/publication-2459.pdf
LA English
DT Article
AB Oceanic mesoscale eddies (with a diameter of 50-100 km) are known to be associated with significant vertical tracer fluxes in the upper few hundred meters. In particular, they are important for the biogeochemical system, accounting for 20-30% of the vertical nutrient transport. However, estimates of the global tracer fluxes neglect the role played by thin elongated filaments (with a width of 5-10 km). These sub-mesoscale structures are produced by eddy interactions and ubiquitous in regions between eddies. We use a Surface Quasi-Geostrophic model to quantify their impact on the net vertical tracer flux into the surface layers. We show that eddy interactions are an important source of tracer injection because they lead to the production of filaments and to large vertical velocities within these structures. This is attributed to the frontogenetic dynamics induced by the horizontal stirring processes. When taking into account this process for the global statistics of tracer injection, the tracer flux associated with the filaments is as significant as that associated with the eddies. This outcome points out the necessity to explicitly include the filamentation process in global ocean model studies.
PY 2006
PD NOV
SO Journal of Marine Research
SN 0022-2402
PU Yale University
VL 64
IS 6
UT 000244124400004
BP 835
EP 851
DI 10.1357/002224006779698369
ID 2459
ER

EF