Title

Thermal Fine Structure of the Ocean Surface Layer in the Region of the POLYMODE-77 Test Range

Document Type

Article

Publication Date

1979

Publication Title

Izvestiya, Atmospheric and Oceanic Physics

ISSN

0001-4338

Volume

15

Issue/No.

7

First Page

514

Last Page

518

Abstract

An experiment in floating-sonde measurement of thermal fine structure in the surface layer of the ocean in the area of the POLYMODE-77 test range is described. The vertical temperature distributions obtained in near-calm weather with strong solar warming indicated the presence of a thin mixed layer. During the daytime, its vertical dimension usually ranged from a few centimeters to a few tens of centimeters, and the maximum temperature gradient relative to the underlying water mass was within 1.3-1.4°C. A mixed layer about a meter thick formed in the evening, with a rather well-defined lower boundary. On the whole, the phenomenon is reminiscent of the usual upper mixed layer and seasonal thermocline, but its temporal and spatial scales are different. The thickness of the thin mixed layer was calculated with certain simplifications on the basis of the heat, salt, and mechanical-energy balance. The agreement with observations is quite good for daytime conditions.

ORCID ID

0000-0001-6519-1547

This document is currently not available here.

Peer Reviewed

Find in your library

Share

COinS