Evaluation of the coefficients of horizontal exchange in the Black Sea according to the data of drifter experiments

Evaluation of the coefficients of horizontal exchange in the Black Sea according to the data of... We generalize the method used for the evaluation of the coefficients of horizontal diffusion of Brownian particles to the nonstationary case, as applied to the drifter experiments. The limits of applicability of the proposed procedure are determined. The coefficients of horizontal exchange are computed with an aim to compare them with the estimates obtained earlier by using the generalized Taylor theory. The mutual agreement of these estimates is demonstrated. It is shown that the difference between the values of the zonal (0.19⋅104 m2/sec) and meridional (0.11⋅104 m2/sec) coefficients of exchange in the Black Sea cannot be explained by the effect of increase in the longitudinal component of pulsations of the velocity as a result of its transverse shear relative to the mean current. A conclusion is made that the processes of horizontal exchange in the Black Sea are geographically anisotropic. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Oceanography Springer Journals

Evaluation of the coefficients of horizontal exchange in the Black Sea according to the data of drifter experiments

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Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer Science+Business Media, Inc.
Subject
Earth Sciences; Oceanography; Remote Sensing/Photogrammetry; Atmospheric Sciences; Climate Change; Environmental Physics
ISSN
0928-5105
eISSN
0928-5105
D.O.I.
10.1007/s11110-012-9126-x
Publisher site
See Article on Publisher Site

Abstract

We generalize the method used for the evaluation of the coefficients of horizontal diffusion of Brownian particles to the nonstationary case, as applied to the drifter experiments. The limits of applicability of the proposed procedure are determined. The coefficients of horizontal exchange are computed with an aim to compare them with the estimates obtained earlier by using the generalized Taylor theory. The mutual agreement of these estimates is demonstrated. It is shown that the difference between the values of the zonal (0.19⋅104 m2/sec) and meridional (0.11⋅104 m2/sec) coefficients of exchange in the Black Sea cannot be explained by the effect of increase in the longitudinal component of pulsations of the velocity as a result of its transverse shear relative to the mean current. A conclusion is made that the processes of horizontal exchange in the Black Sea are geographically anisotropic.

Journal

Physical OceanographySpringer Journals

Published: Apr 3, 2012

References

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