Satellite Synthetic Aperture Radar (SAR) observations can provide a global view of ocean swell fields when using a specific ”wave mode” sampling. A methodology is presented to routinely derive integral properties of the longer wavelength (swell) portion of the wave spectrum from SAR Level 2 products, and both monitor and predict their evolution across ocean basins. SAR-derived estimates of swel...

The questions of how wind and ocean waves interact and how this coupling should be parameterized to optimally derive the surface wind stress remain open and central to estimating air-sea coupling at the global and local scales. While much attention has been given to evaluating the effect of the wind-driven waves upon the surface wind stress and air-sea drag coefficient, less emphasis has been g...

Results of laboratory tests on specimens produced from subsoil studies were evaluated tocharacterize geotechnical properties of Tabriz Marl. It was concluded that, Tabriz Marl may be considered as a high liquid limit silt or clay (MH & CH). Range of changes of index, physical and mechanical properties of the Tabriz Marl are comparatively vast. Correlation between these properties has been intro...

About 40 years ago, Snodgrass and other oceanographers (1966) tracked ocean swell propagating across the entire Pacific Ocean. At about the same time, several investigators (including Benjamin and Feir) showed that a uniform train of plane waves of finite amplitude on deep water is unstable. Comparing these two results, each of which is highly cited, leads to the following question: in light of...

Nonlinear Processes Geophysics, NPG-16Ocean Swell within the kinetic equation for water waves Zakharov and Badulin The authors present interesting notions about swell evolution for long durations and it seems worth publishing. Based on my considerations I recommend a major review. There are 3 important notions that should be discussed or modified in more detail. One concerns the model setup use...

The wind turbine (WT) terminal overvoltage during grid voltage swell events may result in tripping the WT and consequently threaten secure operation of large-scale farms (WFs). In this paper, an optimal coordination droop control adaptive model predictive (MPC) scheme is proposed to enhance high-voltage ride-through (HVRT) post-event recovery WFs. During HVRT, reactive power reference generated...

This paper explains a new proposal for the placement, integration, and control of unified power quality conditioner (UPQC) in distributed generation (DG)-based grid connected/autonomous micro grid/micro generation (μG) system has been presented here along with fuzzy logic controller. Here we using fuzzy logic controller instead of using other controllers. The DG converters (with storage) and th...