Marine & Environmental Sciences Faculty Articles

Small-Scale Turbulence Measurements in the Thin Surface Layer of the Ocean

ORCID

0000-0001-6519-1547

Document Type

Article

Publication Title

Deep Sea Research Part I: Oceanographic Research Papers

ISSN

0967-0637

Publication Date

12-1988

Abstract

Small-scale turbulence parameters in the layer below a wind-blown surface of the ocean can be measured by means of a tethered free-rising profiler. Spectral analysis of the velocity pulsations, measured in the Atlantic Ocean, shows the presence of a frequency band corresponding to the spectrum of local isotopic turbulence in the inertial viscous range. Vertical profiles of dissipation rates of turbulent energy ϵ were calculated according to the vertical component of the velocity turbulent pulsations. Analysis of the vertical profiles of ϵ on the basis of the similarity theory agreed, as a first approximation, with the wall layer analogy proposed by Csanady (1984, Journal of Physical Oceanography, 14, 402–411). Turbulence in the surface layer was suppressed due to the diurnal warming.

DOI

10.1016/0198-0149(88)90113-6

Volume

35

Issue

12

First Page

1859

Last Page

1874

Comments

©1988 Published by Elsevier Ltd.

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