Extended verification of the model of dynamic near-surface layer of the atmosphere

A Semi-phenomenological Model for Wind-Induced Drift Currents

“…In (5), c ph (ω) is the phase velocity as function of frequency, taken at the peak frequency of wind-wave spectrum, ω p ; and W 10 is the wind speed at the standard horizon, z=10 m. Herewith, in Wu (1975) it was clearly shown that the drift velocity, U d , decreases with the wave-fetch increasing, what is in a good agreement with the known variability of the friction velocity (see survey of data in (Polnikov et al, 2003) and detailed parametrization in (Polnikov , 2013)).…”

“…It is impossible to predict theoretically the functional form of dependences U d (ε) and U d (А), because of the statistical nature of instability forming them. Besides, it should be remembered that with growing wave age A, both wave steepness ε and depending on it friction velocity *a u tend to decrease (Drennan et al, 2003;Polnikov et al, 2003). Therefore, with increasing A, there are appearing the multidirectional trends, which can compensate each other to a large extent, canceling out potential dependence U d (А).…”

“…It can be assumed that all the dependences of drift velocity on the wave state are "hidden" in the direct proportionality between U d and friction velocity *a u , whilst the latter, as is well known, depends explicitly on the above-mentioned wave parameters: H, ε and A (see references in Polnikov et al (2003), Polnikov (2013)). However, the absence of direct empirical dependences of U d on wave parameters, in our opinion, requires its justification basing on specialized experiments for their determination.…”

“…Here, in the left-hand side, the known dependence of friction velocity, 10 *a u ( S,W ) , on wave spectrum S and wind speed W 10 (for example, see Polnikov et al, 2003, Polnikov, 2013 is noted for completeness of description, and, in the right-hand side, a potential dependence of unknown function f t on the wave parameters is noted as f t (h,ε, A,….), which will be symbolically denoted later as f t (. ).…”

Ozone deposition on the water surface of Baikal near the coastal zone

“…Estimation of the deposition rate of any gaseous admixture, including the parameters of waves with roughness, can be represented by the expression V  kuh/z0 [4,5]. In [9], under the conditions of wave stability, an approximate dependence of the root-mean-square wave height on wind speed is given <h> = 0.005U 2 .…”