Determining the influence of wind-wave breaking on the dissipation of the turbulent kinetic energy in the upper ocean and on the dependence of the turbulent kinetic energy on the stage of wind-wave development |
| |
| Authors: | S A Kitaigorodskii |
| |
| Institution: | (1) Department of Earth and Planetary Seiences, the Johns Hopkins University, Baltimore, Maryland 21218-2687, USA |
| |
| Abstract: | New experimental data that make it possible to explain and predict the observed variability of turbulent-energy dissipation in the upper ocean are discussed. For this purpose, the dependence of the energy dissipation rate of breaking wind waves on their propagation velocity (see 1]) is used. The turbulent-energy dissipation values obtained earlier in 2, 3] by a direct method are compared to the results of radar measurements of individual breaking events presented in 1]. On the basis of this comparison, a strong dependence of the turbulent-energy dissipation value on the stage of wind-wave development, which is characterized by the ratio U a /c p (U a is the wind speed and c p is the phase speed of the peak of the wind-wave spectrum) is confirmed. This dependence was found earlier purely empirically. Moreover, it is shown that the theoretically obtained dependence (c p /U a )4, does not contradict the available empirical data. The results of this study opens possibilities for scientifically substantiated calculations of greenhouse-gas exchange (specifically, CO2 exchange between the ocean and the atmosphere). |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
