Coherent vortices are an important component of the dynamics of geophysical turbulence, but direct estimates of the properties of the vortex population from measured data is usually difficult. Motivated by this problem, we propose a new method for determining the statistical properties of coherent vortices in two-dimensional turbulence based on a small number of Lagrangian and Eulerian time series. The method provides reliable estimates of the mean vortex size and vortex number density. © 2002 The American Physical Society.
Pasquero, C., Provenzale, A., Weiss, J. (2002). Vortex Statistics from Eulerian and Lagrangian Time Series. PHYSICAL REVIEW LETTERS, 89(28) [10.1103/PhysRevLett.89.284501].
Vortex Statistics from Eulerian and Lagrangian Time Series
PASQUERO, CLAUDIA;
2002
Abstract
Coherent vortices are an important component of the dynamics of geophysical turbulence, but direct estimates of the properties of the vortex population from measured data is usually difficult. Motivated by this problem, we propose a new method for determining the statistical properties of coherent vortices in two-dimensional turbulence based on a small number of Lagrangian and Eulerian time series. The method provides reliable estimates of the mean vortex size and vortex number density. © 2002 The American Physical Society.
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