STRUCTURE OF SEA WAVE FREQUENCY SPECTRUM

Wave Hindcast Study of the Caspian Sea

The significant effect of waves on coastal and marine activities urges the precise identification of wave characteristics using field measurements, theoretical studies, physical modeling or numerical simulations. In order to study thoroughly the wave climate in the Caspian Sea, a wave modeling and hindcast project was performed by Iranian National Center for Oceanography. In this study, one of ...

Wave-number spectrum of drift-wave turbulence.

A simple model for the evolution of turbulence fluctuation spectra, which includes neighboring interactions leading to the usual dual cascade as well as disparate scale interactions corresponding to refraction by large scale structures, is derived. The model recovers the usual Kraichnan-Kolmogorov picture in the case of exclusively local interactions and midrange drive. On the other hand, when ...

Reconfigurable Metamaterial Structure at Millimeter Wave Frequency Range

Received Jul 18, 2017 Revised Oct 20, 2017 Accepted Nov 14, 2017 In this paper, reconfigurable metamaterial structure at millimeter wave frequency range was designed and simulated for a future fifth generation (5G) mobile-phone beam switching applications. The new proposed structure was composed of a bridge-shaped resonator (BSR) in the front face and strip line at the back face of the unit cel...

Statistical Non-gaussian Model of Sea Surface with Anisotropic Spectrum for Wave Scattering Theory. Part I

Power spectrum of sea level change over fifteen decades of frequency

C agnitude in frequency, from a frequency of 1/(591 Ma) to a frequency of 1/(5 s). Although there are still egions of the spectrum where data sampling and duration do not allow the power to be calculated, most otably between periods of 100–1000 years, the general shape of the spectrum is that in which the power epends on the square of the reciprocal frequency, apart from periods between 1 and 1...