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163 Results Found

  • Article
  • Open Access
1 Citations
2,357 Views
9 Pages

7 February 2022

Theoretical researches have established that the energy dynamics of a mature tropical cyclone may be idealized to be very similar to a theoretical Carnot heat engine. Assuming the dissipative heating of the atmospheric boundary layer and the net prod...

  • Article
  • Open Access
1 Citations
1,478 Views
32 Pages

16 May 2024

Based on the Hamilton canonical equations for ocean surface waves with four-five-six-wave resonance conditions, the determinate dynamical equation of four-five-six-wave resonances for ocean surface gravity waves in water with a finite depth is establ...

  • Article
  • Open Access
27 Citations
7,493 Views
21 Pages

Quantum Mechanical and Optical Analogies in Surface Gravity Water Waves

  • Georgi Gary Rozenman,
  • Shenhe Fu,
  • Ady Arie and
  • Lev Shemer

27 May 2019

We present the theoretical models and review the most recent results of a class of experiments in the field of surface gravity waves. These experiments serve as demonstration of an analogy to a broad variety of phenomena in optics and quantum mechani...

  • Essay
  • Open Access
9 Citations
2,718 Views
10 Pages

9 January 2023

Landslide-generated impulse waves of a mountain-river reservoir will endanger the dam body’s stability and the dam structure’s safety and even pose a significant threat to the property safety of downstream residents. Timely prediction of...

  • Article
  • Open Access
13 Citations
3,982 Views
21 Pages

Soliton Turbulence in Approximate and Exact Models for Deep Water Waves

  • Dmitry Kachulin,
  • Alexander Dyachenko and
  • Vladimir Zakharov

10 May 2020

We investigate and compare soliton turbulence appearing as a result of modulational instability of the homogeneous wave train in three nonlinear models for surface gravity waves: the nonlinear Schrödinger equation, the super compact Zakharov equ...

  • Article
  • Open Access
15 Citations
3,323 Views
21 Pages

Interactions of Coherent Structures on the Surface of Deep Water

  • Dmitry Kachulin,
  • Alexander Dyachenko and
  • Andrey Gelash

We numerically investigate pairwise collisions of solitary wave structures on the surface of deep water—breathers. These breathers are spatially localised coherent groups of surface gravity waves which propagate so that their envelopes are stab...

  • Article
  • Open Access
14 Citations
5,998 Views
18 Pages

14 May 2018

Gravity currents generated by lock release are studied in the case of initially quiescent ambient fluid and oscillating ambient fluid (regular surface waves). In particular, the dynamics of the density currents are investigated by means of CFD numeri...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,226 Views
18 Pages

Dynamics and Transformation of Sea Surface Gravity Waves at the Shelf of Decreasing Depth

  • Grigory I. Dolgikh,
  • Olga S. Gromasheva,
  • Stanislav G. Dolgikh and
  • Alexander A. Plotnikov

This paper reviews the results of the processing of synchronized data on hydrosphere pressure variations and the Earth’s crust deformation in the microseismic range (5–15 s), obtained over the course of numerous experiments, using a coastal laser str...

  • Article
  • Open Access
1,067 Views
27 Pages

Towards Understanding Earthquake Preparatory Dynamics: A Multi-Parametric Investigation of the 2025 Kamchatka Mw 8.8 Event

  • Sudipta Sasmal,
  • Kousik Nanda,
  • Masashi Hayakawa,
  • Maria Solovieva,
  • Galina Kopylova and
  • Stelios M. Potirakis

24 November 2025

We present a comprehensive multi-parametric analysis of Lithosphere– Atmosphere–Ionosphere Coupling (LAIC) processes associated with the M = 8.8 earthquake that struck offshore Kamchatka, Russia, on 30 July 2025 (29 July 2015; 23:24:52 UT...

  • Article
  • Open Access
8 Citations
2,956 Views
16 Pages

21 August 2021

Accurate precipitation prediction is of great significance for regional flood control and disaster mitigation. This study introduced a prediction model based on the least square support vector machine (LSSVM) optimized by the genetic algorithm (GA)....

  • Article
  • Open Access
1 Citations
2,310 Views
20 Pages

7 January 2023

Using GRIMM-1107 aerosol sampler, GOES-9 DCD satellite images, HYSPLIT model of backward trajectory and 3D-meteorological WRF-3.6 model, high particulate matter concentrations were investigated at Gangneung city in the Korean east coast which consist...

  • Article
  • Open Access
1 Citations
1,063 Views
25 Pages

Climate Variability and Atlantic Surface Gravity Wave Variability Based on Reanalysis Data

  • Yuri Onça Prestes,
  • Alex Costa da Silva,
  • André Lanfer Marquez,
  • Gabriel D’annunzio Gomes Junior and
  • Fabrice Hernandez

Wave climate variability, including seasonal cycles, long-term trends, and interannual anomalies of wave parameters, was investigated across five latitudinal sectors using ERA5 reanalysis data from 1980 to 2023. Pronounced seasonal cycles were observ...

  • Article
  • Open Access
1,789 Views
19 Pages

27 July 2023

This study presents a comprehensive analysis of the second-order perturbation theory applied to the Navier–Stokes equations governing free surface flows. We focus on gravity–capillary surface waves in incompressible viscous fluids of fini...

  • Article
  • Open Access
10 Citations
3,661 Views
22 Pages

27 August 2021

Surface gravity wave interaction with a semi-infinite floating elastic plate in the presence of multiple undulations has been studied under the assumption of linearized water wave theory and small amplitude structural response. The elastic plate is m...

  • Article
  • Open Access
4 Citations
3,717 Views
23 Pages

Despite recent advancements in ocean–wave observations, how a tropical cyclone’s (TC’s) track, intensity, and translation speed affect the directional wave spectra evolution is poorly understood. Given the scarcity of available wave...

  • Article
  • Open Access
1 Citations
2,350 Views
14 Pages

27 June 2022

Here, for non-breaking short surface waves, we have experimentally determined the value of the turbulent eddy viscosity νT or its ratio νT*νT/ν, where ν is the water kinematic viscosity. The non-breaking wave-generated turbulent...

  • Article
  • Open Access
2,454 Views
14 Pages

Two Models for 2D Deep Water Waves

  • Sergey Dremov,
  • Dmitry Kachulin and
  • Alexander Dyachenko

15 June 2022

In this paper we propose two Hamiltonian models to describe two-dimensional deep water waves propagating on the surface of an ideal incompressible three-dimensional fluid. The idea is based on taking advantage of the Zakharov equation for one-dimensi...

  • Article
  • Open Access
7 Citations
4,718 Views
15 Pages

Generation of Gravity Waves by Pedal-Wavemakers

  • Isis Vivanco,
  • Bruce Cartwright,
  • A. Ledesma Araujo,
  • Leonardo Gordillo and
  • Juan F. Marin

13 June 2021

Experimental wave generation in channels is usually achieved through wavemakers (moving paddles) acting on the surface of the water. Although practical for engineering purposes, wavemakers have issues: they perform poorly in the generation of long wa...

  • Article
  • Open Access
7 Citations
4,255 Views
15 Pages

2 July 2019

The influence of a strong and gusty wind field on ocean waves is investigated. How the random wind affects solitary waves is analyzed in order to obtain insights about wave generation by randomly time varying wind forcing. Using the Euler equations o...

  • Article
  • Open Access
7 Citations
3,705 Views
17 Pages

21 June 2020

Recent studies have sought to use Microsoft Kinect sensors to measure water surface shape in steady flows or transient flow processes. They have typically employed a white colourant, usually titanium dioxide (TiO2), in order to make the surface opaqu...

  • Article
  • Open Access
4 Citations
3,246 Views
30 Pages

22 October 2024

Physics-informed neural networks (PINNs) have recently emerged as a promising alternative to traditional numerical methods for solving partial differential equations (PDEs) in fluid dynamics. By using PDE-derived loss functions and auto-differentiati...

  • Article
  • Open Access
3 Citations
1,601 Views
14 Pages

The results of theoretical analysis and practical implementation of seismoacoustic methods developed for monitoring ice-covered regions in the Arctic are presented and discussed. Special attention is paid to passive seismoacoustic tomography as a uni...

  • Communication
  • Open Access
1 Citations
2,682 Views
10 Pages

Surface Wave Mixing Modifies Projections of 21st Century Ocean Heat Uptake

  • Joshua Kousal,
  • Kevin J. E. Walsh,
  • Zhenya Song,
  • Qingxiang Liu,
  • Fangli Qiao and
  • Alexander V. Babanin

10 March 2023

Climate models do not explicitly account for the smaller scale processes of ocean surface waves. However, many large-scale phenomena are essentially coupled with the waves. In particular, waves enhance mixing in the upper ocean and thereby accelerate...

  • Article
  • Open Access
7 Citations
5,148 Views
11 Pages

The quantification of the reflection of water waves is of paramount importance in coastal and marine engineering. Reflected waves are produced as a result of an incident wave meeting a reflective boundary e.g., in a wave basin. While reflection can b...

  • Article
  • Open Access
3 Citations
2,466 Views
10 Pages

Bound Coherent Structures Propagating on the Free Surface of Deep Water

  • Dmitry Kachulin,
  • Sergey Dremov and
  • Alexander Dyachenko

12 March 2021

This article presents a study of bound periodically oscillating coherent structures arising on the free surface of deep water. Such structures resemble the well known bi-soliton solution of the nonlinear Schrödinger equation. The research was carried...

  • Technical Note
  • Open Access
2,549 Views
14 Pages

16 July 2022

The 10–20-day mode of surface wind is examined in the Indian Ocean, with special reference to the Arabian Sea, Bay of Bengal, equatorial, southern, and southeastern Indian Ocean during a strong (1994), weak (2002), and normal (1995) southwest m...

  • Article
  • Open Access
11 Citations
3,184 Views
10 Pages

Multiple Soliton Interactions on the Surface of Deep Water

  • Dmitry Kachulin,
  • Alexander Dyachenko and
  • Sergey Dremov

28 April 2020

The paper presents the long-time dynamics with multiple collisions of breathers in the super compact Zakharov equation for unidirectional deep water waves. Solutions in the form of breathers were found numerically by the Petviashvili method. In the t...

  • Article
  • Open Access
4 Citations
3,561 Views
10 Pages

17 May 2019

Time reversal of free-surface water (gravity) waves due to a sudden change in the effective gravity has been extensively studied in recent years. Here, we show that an analogy to time-reversal can be obtained using nonlinear acoustic-gravity wave the...

  • Article
  • Open Access
3 Citations
6,302 Views
20 Pages

10 February 2022

Published theories and observations have shown that dissipation of gravity waves implies frequency downshifting of wave energy. Hence, for wind-waves, the wind energy input to the highest frequencies is of special interest. Here it is shown that this...

  • Article
  • Open Access
4 Citations
1,664 Views
17 Pages

Chaotic Properties of Gravity Waves during Typhoons Observed by HFSWR

  • Xuekun Chen,
  • Hongjuan Yang,
  • Zhe Lyu and
  • Changjun Yu

3 November 2023

The gravity wave produced by typhoons has been an essential subject of study that concerns numerous researchers. The damage to human beings and infrastructure in coastal regions caused by typhoon disasters annually is very severe, and analyzing gravi...

  • Article
  • Open Access
870 Views
13 Pages

We present the derivation of generic equations describing the long gravity waves in incompressible fluid with a decaying effect. We show that in this theory, the only restriction to the surface deviation is connected to the stability condition for th...

  • Article
  • Open Access
6 Citations
3,975 Views
12 Pages

Performance Evaluation of Sub-Grid Orographic Parameterization in the WRF Model over Complex Terrain in Central Asia

  • Huoqing Li,
  • Junjian Liu,
  • Hailiang Zhang,
  • Chenxiang Ju,
  • Junjie Shi,
  • Junlan Zhang,
  • Ali Mamtimin and
  • Shuiyong Fan

28 October 2020

The terrain of Central Asia is complex and rugged over mountains. Consequently, wind speed is overestimated over mountains and plains when using the Weather Research Forecast (WRF) model in winter. To solve this problem, three different simulations (...

  • Article
  • Open Access
12 Citations
2,349 Views
9 Pages

19 November 2020

We consider analytical solutions describing the generation of internal gravity waves far from a non-local source of disturbances. We suppose that the source moves on the surface of stratified medium of a finite depth. A model distribution of the non-...

  • Article
  • Open Access
3 Citations
1,718 Views
20 Pages

10 January 2024

Investigating the dynamic evolution process of the ocean and ionosphere in sudden sea conditions poses a challenging problem. To address this objective, this study utilizes actual data from high-frequency surface wave radar (HFSWR) to analyze, valida...

  • Article
  • Open Access
3 Citations
3,655 Views
13 Pages

4 November 2021

This paper describes a numerical investigation of ripples generated on the front face of deep-water gravity waves progressing on a vertically sheared current with the linearly changing horizontal velocity distribution, namely parasitic capillary wave...

  • Article
  • Open Access
1 Citations
3,424 Views
18 Pages

2 October 2018

The traditional small-scale marine engineering experiments that are performed under normal gravity fields always encounter one stubborn difficulty related to full-scale prototype models. However, the difficulty can be resolved by centrifuge experimen...

  • Feature Paper
  • Review
  • Open Access
8 Citations
4,413 Views
39 Pages

12 April 2022

Gravity-capillary waves at the water surface are an obvious example illustrating wave propagation in the laboratory, and also nonlinear wave phenomena such as wave interactions or wave turbulence. However, at high-enough frequencies or small scales (...

  • Article
  • Open Access
7 Citations
5,541 Views
14 Pages

Directional Spreading Function of the Gravity-Capillary Wave Spectrum Derived from Radar Observations

  • Xuan Zhou,
  • Jinsong Chong,
  • Haibo Bi,
  • Xiangzhen Yu,
  • Yingni Shi and
  • Xiaomin Ye

12 April 2017

Directional spreading function of the gravity-capillary wave spectrum can provide the high-wavenumber wave energy distribution among different directions on the sea surface. The existing directional spreading functions have been mainly developed for...

  • Article
  • Open Access
2 Citations
3,494 Views
20 Pages

Removing Wave Bias from Velocity Measurements for Tracer Transport: The Harmonic Analysis Approach

  • Sangdon So,
  • Arnoldo Valle-Levinson,
  • Jorge Armando Laurel-Castillo,
  • Junyong Ahn and
  • Mohammad Al-Khaldi

16 April 2020

Estimates of turbulence properties with Acoustic Doppler Current Profiler (ADCP) measurements can be muddled by the influence of wave orbital velocities. Previous methods—Variance Fit, Vertical Adaptive Filtering (VAF), and Cospectra Fit (CF)&m...

  • Article
  • Open Access
6 Citations
3,241 Views
17 Pages

Ultra Low Frequency Wave Produced by Underwater Oscillating Sphere and Its Measurement

  • Huan Wang,
  • Erzheng Fang,
  • Mingze Wu,
  • Lianjin Hong and
  • Zongru Li

23 November 2021

When an underwater target moves in viscous fluid, it may cause the periodic movement of the surrounding fluid and generate ultra-low-frequency (ULF) gravity waves. The initial domain of the gravitational surface wave propagating above the moving targ...

  • Article
  • Open Access
2,289 Views
17 Pages

15 November 2022

Bragg scattering of surface gravity waves by an array of submerged bottom-standing non-smooth breakwaters is studied under the assumption of linearized long wave theory. The closed-form long-wave analytical solutions are derived and validated by comp...

  • Article
  • Open Access
7 Citations
3,275 Views
25 Pages

Accurately estimating air–water gas exchanges requires considering other factors besides wind speed. These are particularly useful for coastal ocean applications, where the sea-state varies at fine spatial and temporal resolutions. We upgrade F...

  • Article
  • Open Access
1 Citations
2,481 Views
20 Pages

A permanent gravity wave propagating on deep water is a classic mathematical problem. However, the Fourier series approximation (FSA) based on the physical plane was examined to be valid for almost waves at all depths. The accuracy of the FSA for alm...

  • Article
  • Open Access
1 Citations
3,292 Views
16 Pages

The Response of the Water Surface Layer to Internal Turbulence and Surface Forcing

  • Mohammad Barzegar,
  • Darek Bogucki,
  • Brian K. Haus and
  • Mingming Shao

19 February 2021

We have carried out an experimental study of the turbulence kinetic energy dissipation rate (ϵ), temperature dissipation rate (χ), and turbulent heat flux (THF) within the water surface layer in the presence of non-breaking wave, surface convection,...

  • Article
  • Open Access
2 Citations
1,805 Views
16 Pages

Research on Wave-Added Resistance and Longitudinal Stability Characteristics of Amphibious Aircraft in Rule Wave

  • Huawei Sun,
  • Anran Ju,
  • Wentian Chang,
  • Jingfei Liu,
  • Jiayi Liu and
  • Hanbing Sun

Assessing the safety of amphibious aircraft hinges significantly on two key factors: wave-added resistance and motion stability during takeoff and landing on water surfaces. To tackle this, we employed the Reynolds-averaged Navier–Stokes (RANS)...

  • Feature Paper
  • Review
  • Open Access
20 Citations
4,473 Views
32 Pages

1 March 2024

The nonlinear Schrödinger (NLS) equation stands as a cornerstone model for exploring the intricate behavior of weakly nonlinear, quasi-monochromatic wave packets in dispersive media. Its reach extends across diverse physical domains, from surfac...

  • Article
  • Open Access
3 Citations
2,254 Views
19 Pages

22 July 2023

High-altitude balloons carrying infrasound sensor payloads can be leveraged toward monitoring efforts to provide some advantages over other sensing modalities. On 10 July 2020, three sets of controlled surface explosions generated infrasound waves de...

  • Article
  • Open Access
2 Citations
1,493 Views
19 Pages

Leaky Wave Modes and Edge Waves in Land-Fast Ice Split by Parallel Cracks

  • Aleksey Marchenko,
  • Mark Johnson and
  • Dmitry Brazhnikov

In this paper we consider flexural-gravity waves propagating in a layer of water of constant depth limited by a vertical wall simulating a straight coastline. The water surface is covered with an elastic ice sheet of constant thickness. The ice sheet...

  • Article
  • Open Access
5 Citations
3,880 Views
18 Pages

30 December 2018

This article is concerned with the non-linear interaction of homogeneous random ocean surface waves. Under this umbrella, numerous kinetic equations have been derived to study the evolution of the spectral action density, each employing slightly diff...

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