Article
Engineering, Environmental
Trygve K. Loken, Jean Rabault, Atle Jensen, Graig Sutherland, Kai H. Christensen, Malte Mueller
Summary: This study presents wave measurements in the Marginal Ice Zone (MIZ) obtained from ship mounted sensors. Significant wave height and mean wave period, as well as one-dimensional wave spectra are derived and compared with integrated parameters from spectral wave models and motion detecting instruments on ice floes. The methodology is considered a simple and cost-effective way to collect more waves-in-ice data during ice expeditions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Marine
Mark Orzech
Summary: This article introduces an alternative approach to accurately predict the attenuation of ocean surface waves in polar marginal ice zones. By representing the ice layer using a modified version of the vegetation damping parameterization in a phase-resolved wave model, the new representation is evaluated and compared to theory and measured data.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Will Perrie, Michael H. Meylan, Bechara Toulany, Michael P. Casey
Summary: This study compares two recent three-dimensional formulations for wave-ice interactions in the marginal ice zone and finds that the new formulations result in weaker wave height attenuation compared to other formulations. The attenuation effect extends over the entire frequency domain. Additionally, a "roll-over" effect of attenuation is observed beyond the ice edge in the simulations.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Oceanography
S. Wahlgren, J. Thomson, L. C. Biddle, S. Swart
Summary: Wave energy has an impact on the quality and extent of sea ice in the Antarctic marginal ice zone, and understanding wave propagation is crucial for predicting changes in sea ice cover. In this study, new in situ data collected from drifting buoys in the Weddell Sea reveal season-dependent attenuation of swell and a change in wave direction in sea ice compared to open water. These observations provide valuable insights into wave-sea ice interactions and can aid the development of accurate models for representing the influence of sea ice on wave propagation.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Oceanography
S. Wahlgren, J. Thomson, L. C. Biddle, S. Swart
Summary: The article presents in situ observations of wave activity in the Antarctic marginal ice zone, investigating the interactions between waves and sea ice as well as the attenuation of waves in different seasons. The observations also suggest that sea ice may cause a change in wave direction. These findings are significant for understanding the influence of sea ice on waves and the development of coupled wave-sea ice models.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Multidisciplinary Sciences
V. T. Cooper, L. A. Roach, J. Thomson, S. D. Brenner, M. M. Smith, M. H. Meylan, C. M. Bitz
Summary: The retreat of Arctic sea ice has led to increased ocean wave activity, but the interactions between surface waves and sea ice are still not fully understood. In this study, in-situ observations and global model simulations were used to investigate wave activity in the western Arctic marginal ice zone. The results indicate limited locally generated wind waves in the ice-covered regions, and the choice of wave attenuation scheme and wind input significantly affect the extent of wave activity over ice-covered oceans. The findings emphasize the need for stronger constraints on wave attenuation and suggest further research on locally generated wind waves and their role in sea ice evolution.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Engineering, Marine
Mark Orzech, Jie Yu, David Wang, Blake Landry, Carlo Zuniga-Zamalloa, Edward Braithwaite, Kathryn Trubac, Callum Gray
Summary: Surface waves in polar marginal ice zones (MIZs) generate a boundary layer beneath the ice, similar to the wave boundary layer at the seabed. This experimental study measured the boundary layer and wave attenuation rates in a salt water tank with broken surface ice. The results show a strong evidence of the boundary layer and comparable wave attenuation rates with existing datasets. This is the first of two experiments, with the second one scheduled for early 2023.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Jean-Pierre Auclair, Dany Dumont, Jean-Francois Lemieux, Hal Ritchie
Summary: With the advancement in forecasting models, the interaction between waves and sea ice in the marginal ice zone can now be better understood. However, the mechanics of wave propagation and attenuation in ice, and their impact on sea ice dynamics, still need further exploration. This article presents a one-dimensional wave and ice model to study different parameterizations of wave-ice interactions and investigate the response of the ice cover under various wind, wave, and ice conditions.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Meteorology & Atmospheric Sciences
George Victor Emmanuel, Anna Rutgersson, Wu Lichuan
Summary: Wave decay in the marginal ice zones (MIZ) is crucial for shaping the behavior of the Arctic Ocean. Ice-induced damping term is the main contributor to MIZ wave decay, while wind input source term also plays an important role, especially in high wind speed conditions. Contributions from wind input are more significant in areas with low sea ice concentration, and the angle between winds and waves does not affect these contributions.
Article
Geosciences, Multidisciplinary
Jim Thomson, Bjoern Lund, John Hargrove, Madison M. Smith, Jochen Horstmann, Jennifer A. MacKinnon
Summary: Observations of surface waves and ice drift along a compact sea ice edge highlight the significance of waves in a marginal ice zone. An analytic model and momentum balance are used to explain the ice drift forced by radiation stress gradient of oblique waves. While lateral shear stresses in the ice are evaluated, additional forcing by local winds is considered small compared to wave forcing, which is isolated to a narrow region around 500m wide.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Takuji Waseda, Alberto Alberello, Takehiko Nose, Takenobu Toyota, Tsubasa Kodaira, Yasushi Fujiwara
Summary: Compared to the Antarctic and Arctic, waves in the Marginal Ice Zone in the Okhotsk Sea have been less studied. In February 2020, wave observations were conducted for the first time in the Okhotsk Sea through the Patrol Vessel Soya. The observed wave system exhibited anomalous spectral downshifting, possibly influenced by the presence of ice.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Engineering, Ocean
Takahito Iida, Atle Jensen, Maria Zen
Summary: A theoretical model is proposed to explain the scattering process of wave attenuation in a marginal ice zone. A simplified estimation method is developed to explicitly describe its fundamental mechanisms. Theoretical results show the same tendency and order as the experimental results, validating the proposed theory.
APPLIED OCEAN RESEARCH
(2023)
Article
Multidisciplinary Sciences
Alberto Alberello, Luke G. Bennetts, Miguel Onorato, Marcello Vichi, Keith MacHutchon, Clare Eayrs, Butteur Ntamba Ntamba, Alvise Benetazzo, Filippo Bergamasco, Filippo Nelli, Rohinee Pattani, Hans Clarke, Ippolita Tersigni, Alessandro Toffoli
Summary: This study presents unprecedented 3D imaging of waves and sea ice floes in the Antarctic marginal ice zone during a polar cyclone, revealing a complex wind-plus-swell sea state. The measurements of wave evolution in this region contribute to a better understanding of the role of the marginal ice zone in the climate system.
NATURE COMMUNICATIONS
(2022)
Review
Oceanography
Yasemin V. Bodur, Paul E. Renaud, Lucie Goraguer, Marti Amargant-Arumi, Philipp Assmy, Anna Maria Dabrowska, Miriam Marquardt, Angelika H. H. Renner, Agnieszka Tatarek, Marit Reigstad
Summary: The northern Barents Sea is a productive Arctic inflow shelf with a seasonal ice cover, and it experiences an efficient downward export of particulate organic matter through the biological carbon pump. The study found that the vertical flux of particulate organic matter was highest in May and August, characterized by different contributors and spatial patterns. The findings suggest that the efficiency of the biological carbon pump depends on the reworking of sinking material and the occurrence of mixing.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Engineering, Marine
Ziyue Dai, Huimin Li, Dongbo Liu, Chen Wang, Lijian Shi, Yijun He
Summary: The marginal ice zone (MIZ) plays significant roles in shaping the ice edge and wave-ice interaction. The study found that the radar return over sea ice decreases by an average of approximately 1.78 dB compared to adjacent open water. Furthermore, ocean waves are gradually attenuated inside the ice from the edge at distances associated with their wavelengths.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Mathematics, Applied
Tanja Lochner, Malte A. Peter
Summary: This paper considers the upscaled linear elasticity problem in the context of periodic homogenization. The goal is to deduce information on the geometry of the microstructure based on measurements of the deformation of the macroscopic boundary for a given forcing. The paper proves the existence of at least one solution of the associated minimization problem for a parametrized microstructure.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Engineering, Multidisciplinary
S. Boral, T. Sahoo, M. H. Meylan
Summary: The interaction between surface gravity waves and an articulated flexible submerged plate under lateral compressive force is studied. The study considers small-amplitude plate response and linearized water wave theory in finite water depth. It is found that wave blocking occurs in the submerged plate mode when the plate is resting on a Winkler foundation, but not in the absence of the foundation. Four propagating wavenumbers exist within the blocking frequencies, with one in the surface mode and the others in the submerged plate mode.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Mathematics, Applied
David Wiedemann, Malte A. Peter
Summary: This study investigates the homogenisation of a coupled reaction-diffusion process in a porous medium with evolving microstructure. The domain evolution is fully coupled with the reaction-diffusion process due to a concentration-dependent reaction rate at the interface of the pores with the solid matrix. The two-scale-transformation method is employed to homogenise the highly non-linear problem in a periodic and in time cylindrical domain, resulting in a reaction-diffusion equation coupled with an internal variable representing the local evolution of the pore structure.
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
(2023)
Article
Physics, Fluids & Plasmas
Jiahao Kong, Luke G. Bennetts, Bagus Nugroho, R. C. Chin
Summary: Turbulent boundary layer experiments were conducted to investigate the effects of friction Reynolds numbers and streamwise spacing of roughness elements on the flow properties. The results show that drag coefficient converges to fully rough condition with large roughness Reynolds numbers, and the increase of streamwise spacing induces higher drag coefficient. The results suggest that 2D square-bar roughness can reduce the energy distribution for the largest-scale structure.
PHYSICAL REVIEW FLUIDS
(2023)
Article
Mechanics
Hao Chen, Qianlong Xu, Xiaobo Zheng, Luke G. Bennetts, Bin Xie, Zhiliang Lin, Zaibin Lin, Ye Li
Summary: This paper presents an analysis of viscous effects on the added mass and damping forces during free heave decay of a cylinder with a hemispherical bottom. It compares results from simulations and solutions, and derives expressions for the viscous coefficients based on Fourier analysis. The study finds that viscous effects on the added mass coefficient are minor, while the damping coefficient exhibits strong cycle-dependent variations. The study also investigates the effects of other factors on the damping forces.
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
(2023)
Article
Mechanics
Thien Tran-Duc, Michael H. Meylan, Ngamta Thamwattana
Summary: In this study, ice melting under water wave impacts was investigated using smoothed particle hydrodynamics simulations. The elastic behavior of the ice was also taken into account. The results showed that water waves affect ice melting through overflow and local fluid circulations caused by water-ice interactions and wave motions. Additionally, fluid convection in the submerged region increased the ice-melting amount by about 43%. The melting rate of the ice varied linearly with the initial water temperature and was highest at the early stage of the simulation period.
Article
Mechanics
Mansi Singh, Michael H. H. Meylan, R. Gayen
Summary: This article investigates the motion of a thin elastic plate with non-uniform thickness. The plate Green's function, derived from the vibrating modes of the plate, is determined through two methods. A boundary integral equation involving the plate Green's function and the fundamental Green's function is used to solve the problem. The numerical solution provides results for elastic plates with variable thicknesses, which are validated by comparing them with those of a uniform thickness elastic plate. Simulations of the time-domain motion of the plate-fluid system under an incident wave pulse are presented using Fourier transform.
Article
Mechanics
S. Das, M. H. Meylan
Summary: This study presents an analytical solution for the surface wave profile caused by a temporal ocean bottom disturbance in a compressible ocean while considering the impact of static compression. The problem is solved using the Fourier transformation and eigenfunction matching method, and the solution's validity is verified by comparing it to the Green's function formulation. The study also examines the effect of static compression on the surface profile through time-domain simulations.
Article
Mechanics
Kottala Panduranga, Santanu Koley, Michael H. Meylan
Summary: This study investigates the scattering of surface ocean waves by a submerged viscoelastic plate placed over the variable bottom topography using the hybrid boundary element method. The solution technique allows for plates at any angle over the variable bottom topography and includes the analysis of a rigid wall downstream. The study also analyzes the effect of sinusoidally varying bottom topography, damping parameter, and plate edge conditions on the Bragg resonance phenomenon.
Article
Engineering, Chemical
O. Orozovic, A. Lavrinec, R. McCloy, M. H. Meylan
Summary: This paper addresses the challenge of relating the dynamic properties of individual slugs to steady feed rates by developing a numerical framework for modeling single slugs. The framework, based on finite difference approximation, provides a fundamental and quantitative tool for analyzing slug dynamics and serves as a foundation for further research.
Article
Engineering, Marine
Samuel McNeil, Michael H. Meylan
Summary: This study investigates ice shelf vibration using a shallow water approximation model. The effect of changes in the draft on ice shelf vibration is examined through time-domain and frequency-domain results. The model incorporates a radiation condition for energy propagation into the ice shelf and derives an energy balance relation to study energy flow within the system. Findings indicate that draft changes significantly impact ice shelf vibration and the energy flow is influenced by ice shelf geometry. The study also reveals distinct differences in wave packet behavior between the ice shelf and open water. Overall, this research provides valuable insights into ice shelf dynamics and emphasizes the importance of considering draft changes and using the time domain for modeling these phenomena.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Physics, Fluids & Plasmas
Raed Alrdadi, Michael H. Meylan
Summary: This study presents a numerical simulation of fluid flow through railway ballast in the time domain, providing a model for unsteady-state flow. It is demonstrated that the position of the free surface with respect to time can also be used to solve the steady flow case. The effect of ballast fouling is included in the model to capture the realistic behavior of railway ballast, and a thorough comparison with previous studies shows close agreement. The simulation highlights the significant impact of ballast fouling on fluid flow and its potential consequences for railway infrastructure, offering valuable insights into water flow behavior through porous media and its relevance to railway ballast management.
Article
Mechanics
Qianlong Xu, Ye Li, Luke G. Bennetts, Shangming Wang, Lijun Zhang, Hao Xu, Srikanth Narasimalu
Summary: This article proposes a theoretical model to describe the motion response and wave power absorption efficiency of a two-body system (floating body and reacting body) in a multiple-body system. Numerical simulations show that adjusting the damping coefficient and stiffness of the two-body system can improve its power absorption performance, and the two-body system can absorb more wave energy at low wave frequencies.
Article
Mechanics
Swaroop Nandan Bora, Santu Das, Michael H. Meylan, Sunanda Saha, Siming Zheng
Summary: A semi-analytical model is developed to solve the time-dependent water wave scattering problem involving a marine structure consisting of multiple circular rigid vertical cylinders. The problem is tackled using the eigenfunction expansion approach, and the energy dissipation relation for the compound cylinder system is derived. The study focuses on determining the optimal geometrical configurations for minimal wave forces acting on the structure in a given wave direction in the frequency domain. The model is numerically validated against existing literature.
Article
Mechanics
S. Boral, Michael H. Meylan, T. Sahoo, B. -Y. Ni
Summary: This study investigates the scattering of flexural gravity waves caused by uneven bottom topography in the context of wave blocking, with a focus on the effects of multiple propagating wave modes on the solution procedures. Mathematical models are developed for two scenarios: a bottom step and a submerged rectangular breakwater. The energy balance relation is derived in both cases using the conservation of energy flux in the presence of multiple propagating wave modes. It is found that wave blocking occurs for different frequencies due to variations in water depth, making the problem more complex. The transmitted wave amplitude associated with the lower wavenumber within the blocking frequencies exceeds unity, and this excess energy is balanced by the corresponding energy transfer rate. Removable discontinuities are also observed at the blocking frequencies in the scattering coefficients, where group velocity ceases. In the context of floating ice sheets, the deflection is analyzed for frequencies within and outside the blocking limits.
