scholarly journals Experimental study on superharmonic wave generation by resonant interaction between internal wave modes

2020 ◽  
Vol 5 (7) ◽  
Author(s):  
Pauline Husseini ◽  
Dheeraj Varma ◽  
Thierry Dauxois ◽  
Sylvain Joubaud ◽  
Philippe Odier ◽  
...  
Keyword(s):  
Experimental Study ◽  
Internal Wave ◽  
Resonant Interaction ◽  
Wave Generation ◽  
Wave Modes

scholarly journals Experimental study of internal wave generation by convection in water

2015 ◽  
Vol 47 (4) ◽  
pp. 045502 ◽  
Author(s):  
Michael Le Bars ◽  
Daniel Lecoanet ◽  
Stéphane Perrard ◽  
Adolfo Ribeiro ◽  
Laetitia Rodet ◽  
...  
Keyword(s):  
Experimental Study ◽  
Internal Wave ◽  
Wave Generation ◽  
Internal Wave Generation

Experimental Study of Wave Modes Coupling in Open Resonator Excited by Electron Flow

1993 ◽  
Vol 13 (4) ◽  
pp. 417-429
Author(s):  
V. P. Shestopalov ◽  
V. G. Kurin ◽  
B. K. Skrynnik
Keyword(s):  
Experimental Study ◽  
Electron Flow ◽  
Open Resonator ◽  
Modes Coupling ◽  
Wave Modes

Internal Wave Generation by a Combination of Tidal and Steady Currents

2021 ◽  
Author(s):  
Xiaolin Bai ◽  
Kevin Lamb ◽  
José da Silva
Keyword(s):  
Internal Wave ◽  
Wave Generation ◽  
Satellite Observations ◽  
Internal Tides ◽  
Small Scale ◽  
Western Boundary ◽  
Boundary Current ◽  
Reanalysis Dataset ◽  
Amazon Shelf ◽  
Internal Wave Generation

<p>In the presence of topography, two main contributors for internal wave energy are tide-topography interaction transferring energy from the barotropic tide to internal tides, and lee wave generation when geostrophic currents or eddying abyssal flows interact with topography. In the past few decades, many studies considered the respective contribution of the oscillating flows or steady background flows, but few investigations have considered both.  </p><p>In this talk, we consider the joint effects of tidal and steady currents to investigate internal wave generation and propagation on the Amazon shelf, a hotspot for internal solitary wave (ISW) generation. The Amazon Shelf is off the mouth of the Amazon River in the southwest tropical Atlantic Ocean, affected by strong tidal constituents over complex bottom bathymetry and a strong western boundary current, the North Brazilian Current (NBC). Both satellite observations and numerical modelling are used in this study. Satellite observations provide a clear visualization of the wave characteristics, such as temporal and spatial distributions, propagating direction and its relation to background currents. Based on parameters from satellite observations and reanalysis dataset, we set up a model to numerically investigate the dynamics of the ISW generation. We demonstrate that the small-scale topography contributes to a rich generation of along-shelf propagating ISW, which significantly contribute to the ocean mixing and potentially cause sediment resuspension. Moreover, the ISW-induced currents also contribute to the sea surface wave breaking as observed by satellite measurements. In addition, statistics based on a decade of satellite images and numerical investigations on seasonal variations of the ISWs and the NBC improve our understanding of the generation and evolution of these nonlinear internal waves in the presence of background currents.</p>

Sign in / Sign up

Export Citation Format

Share Document