2024-03-28T19:16:08Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/454622018-09-13T07:15:11Zcom_10261_2855com_10261_4col_10261_2857
DIGITAL.CSIC
author
Bettencourt, João H.
author
López, Cristóbal
author
Hernández-García, Emilio
2012-02-13T10:48:45Z
2012-02-13T10:48:45Z
2012-07
Ocean Modelling 51: 73-83 (2011)
1463-5003
http://hdl.handle.net/10261/45462
10.1016/j.ocemod.2012.04.004
We study three dimensional oceanic Lagrangian Coherent Structures (LCSs) in the Benguela region, as obtained from an output
from the ROMS model. To this end we first compute Finite-Size Lyapunov exponent (FSLE) fields in the region volume, characterizing mesoscale stirring and mixing there. Average FSLE values show a general decreasing trend with depth, but there is a local
maximum at about 100m depth. LCSs are extracted as ridges of the calculated FSLE fields. They present a “curtain-like” geometry
in which the strongest attracting and repelling structures appear as quasivertical surfaces. LCSs around a particular cyclonic eddy,
pinched o from the upwelling front are also calculated. The LCSs are confirmed to provide pathways and barriers to transport in
and out of the eddy
eng
openAccess
Lagrangian Coherent Structures
Finite-Size Lyapunov exponents
Oceanic three-dimensional Lagrangian Coherent Structures: A study in the Benguela upwelling region.
preprint
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URL
https://digital.csic.es/bitstream/10261/45462/1/Benguela_OcModelling_Final_20111115.pdf
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Benguela_OcModelling_Final_20111115.pdf
URL
https://digital.csic.es/bitstream/10261/45462/4/Benguela_OcModelling_Final_20111115.pdf.txt
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Benguela_OcModelling_Final_20111115.pdf.txt