Alessandro Toffoli

A Physical Model of Wave Attenuation in Pancake Ice

Alberto Alberello, Azam Dolatshah, Luke G Bennetts, Miguel Onorato, Filippo Nelli, Alessandro Toffoli

Journal article  |  2021  |  INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING

A physical model is discussed that mimics the interaction between ocean waves and a multitude of loose pancake ice floes, which fo..

Predicting the occurrence of rogue waves in the presence of opposing currents with a high-order spectral method

Guillaume Ducrozet, Maryam Abdolahpour, Filippo Nelli, Alessandro Toffoli

Journal article  |  2021  |  PHYSICAL REVIEW FLUIDS

We discuss the dynamics of unidirectional random wave fields that propagate against an opposing current through laboratory experim..

A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction

Rutger Marquart, Alfred Bogaers, Sebastian Skatulla, Alberto Alberello, Alessandro Toffoli, Carina Schwarz, Marcello Vichi

Journal article  |  2021  |  FLUIDS

The marginal ice zone is a highly dynamical region where sea ice and ocean waves interact. Large-scale sea ice models only compute..

Wind, waves, and surface currents in the Southern Ocean: observations from the Antarctic Circumnavigation Expedition

Marzieh H Derkani, Alberto Alberello, Filippo Nelli, Luke G Bennetts, Katrin G Hessner, Keith MacHutchon, Konny Reichert, Lotfi Aouf, Salman Khan, Alessandro Toffoli

Journal article  |  2021  |  EARTH SYSTEM SCIENCE DATA

The Southern Ocean has a profound impact on the Earth's climate system. Its strong winds, intense currents, and fierce waves are c..

New Directional Wave Satellite Observations: Towards Improved Wave Forecasts and Climate Description in Southern Ocean

L Aouf, D Hauser, B Chapron, A Toffoli, C Tourain, C Peureux

Journal article  |  2021  |  GEOPHYSICAL RESEARCH LETTERS

In spite of continuous improvements of ocean wave models in the last decades, large errors still remain in particular under strong..

Forced Migration, Oceanic Humanitarianism, and the Paradox of Danger and Saviour of a Vietnamese Refugee Boat Journey

J Damousi, F Nelli, A Nguyen Austen, A Toffoli, M Tomsic

Journal article  |  2021  |  Historical Journal

The ocean is a central site of escape, danger, and rescue for refugees. It is also a place where oceanic humanitarianism is enacte..

Reconstructing sea-states in the Southern Ocean using ship motion data

F Nelli, A van Zuydam, K Pferdekamper, A Alberello, M Derkani, A Bekker, A Toffoli

Conference Proceedings  |  2021  |  Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE

Sea state conditions can be estimated from the motion of a moving ship by converting its response to incident waves through the re..

On the Use of a Domain Decomposition Strategy in Obtaining Response Statistics in Non-Gaussian Seas

Griet Decorte, Alessandro Toffoli, Geert Lombaert, Jaak Monbaliu

Journal article  |  2021  |  FLUIDS

During recent years, thorough experimental and numerical investigations have led to an improved understanding of dynamic phenomena..

Ship resistance when operating in floating ice floes: A combined CFD&DEM approach

L Huang, J Tuhkuri, B Igrec, M Li, D Stagonas, A Toffoli, P Cardiff, G Thomas

Journal article  |  2020  |  Marine Structures

Whilst climate change is transforming the Arctic into a navigable ocean where small ice floes are floating on the sea surface, the..

Fourier amplitude distribution and intermittency in mechanically generated surface gravity waves

Elmira Fadaeiazar, Justin Leontini, Miguel Onorato, Takuji Waseda, Alberto Alberello, Alessandro Toffoli

Journal article  |  2020  |  PHYSICAL REVIEW E

We examine and discuss the spatial evolution of the statistical properties of mechanically generated surface gravity wave fields, ..