Journal cover Journal topic
Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
Nonlin. Processes Geophys., 24, 189-202, 2017
http://www.nonlin-processes-geophys.net/24/189/2017/
doi:10.5194/npg-24-189-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
03 May 2017
Trajectory encounter volume as a diagnostic of mixing potential in fluid flows
Irina I. Rypina and Lawrence J. Pratt

Data sets

Ssalto/Duacs delayed-time global gridded maps of absolute geostrophic velocities (1/4° x 1/4° on a Cartesian grid)
AVISO
http://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global.html
Publications Copernicus
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Short summary
Fluid parcels exchange water properties when coming into contact with each other, leading to mixing. The trajectory encounter volume, defined here as the volume of fluid that passes close to a reference trajectory over a finite time interval, is introduced as a measure of the mixing potential of a flow. Regions with a low encounter volume (the cores of coherent eddies) have a low mixing potential. Regions with a large encounter volume (turbulent or chaotic regions) have a high mixing potential.
Fluid parcels exchange water properties when coming into contact with each other, leading to...
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