Evaluation of the influence of surface films on short wind waves and the characteristics of the boundary layer of the atmosphere |
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| Authors: | S A Grodsky V N Kudryavtsev V K Makin |
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| Institution: | (1) Nansen International Environmental and Remote Sensing Center (NIERSC), Saint-Petersburg, Russia;(2) Nansen Environmental and Remote Sensing Center (NERSC), Bergen, Norway;(3) Royal Netherlands Meteorological Institute (KNMI), 3730AE De Bilt, The Netherlands; |
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| Abstract: | With the help of a combined model of wind and waves, we study the influence of films of surfactants on the spectrum of short
wind waves and the parameters of the lowest layer of the atmosphere. It is shown that the films of surfactants decrease the
roughness of the sea surface as a result of suppression of short wind waves, which decreases the coefficient of resistance
of the sea surface and the coefficient of turbulent heat exchange. The maximum influence of films on the exchange coefficients
is attained forU∼10 m/s. In this case, the relative decrements of the coefficients of resistance and turbulent heat exchange are equal to
15 and 9%, respectively.
Translated by Peter V. Malyshev and Dmitry V. Malyshev UDC 551.46 |
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