| Autor: |
V.I. Titov, T.G. Talipova, A.M. Zujkova, A.R. Panchenko, S.G. Salashin, Stanislav A. Ermakov |
| Rok vydání: |
1986 |
| Předmět: |
|
| Zdroj: |
Dynamics of Atmospheres and Oceans. 10:31-50 |
| ISSN: |
0377-0265 |
| DOI: |
10.1016/0377-0265(86)90008-4 |
| Popis: |
The results are presented of experiments with artificial slicks carried out at different wind velocities and with different films in natural conditions. In particular, variations of the wave number and frequency spectra of the short wind waves at wavelengths of 4 cm-1 m and frequencies of 2–20 Hz in slicks are analysed. It is shown that ripple flattening at gentle (up to 1–1.5 m s−1) and moderate (>5–6 s−1) winds can be described in the framework of the theoretical model of the variability of centimetre-waves taking into account their anomalous attenuation due to the elastic film. The measurements of the natural film elasticity are taken and its considerable growth in natural slicks is registered; the estimate of the elasticity sufficient for the formation of film slicks is given. The influence of ripple flattening on the transformation of the wind velocity field above the film slicks and the amplification of decimeter-waves caused by this are discussed; correct estimates of the effects observed are made. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
