Source: NASA Earth Observatory

Hi! I'm a researcher currently working in the S2T Unit at OIST. I am studying ocean-atmosphere and land-atmosphere energy exchanges using theoretical models and high-performance numerical simulations supported by data analysis of in-situ observations. This site inventories some of the public materials about my current projects as well as communications about them.

Projects

Here are some of the projects that I am currently working on:

dNami computational framework

The dNami framework aims to reduce the amount of time spent writing high-performance code when investigating a physical problem. To find out more checkout the GitHub repo or the documentation.

The Tree Pulse Network

Aggregation, post-processing and contextualisation of data from a network of dendrometers and environmental sensors placed around the globe. Find out more here.

Pine Wilt Disease mapping on Okinawa

Mapping the spread of the pine wilt disease around the OIST campus and the Okinawa Islands using drone and satellite data. Find out more and see a visual of the results here.

Education

My background is in engineering with a specialisation in fluid dynamics.

  • PhD, Imperial College London

    • Work focusing on energy exchanges in compressible flows near a phase change involving numerical simulations performed using the computational framework dNami. You can find a version of my PhD thesis here: ICL Spiral repository.

  • MSc, Imperial College London

    • Master's course in Advanced Mechanical Engineering and a 6 months research project on the implementation of a thermal ablation CFD model in CompReal.

  • MEng, ENSEEIHT

    • Mechanical Engineering courses with a focus on thermodynamics and fluid dynamics. Second year specialisation in numerical methods for computation fluid dynamics.

Publications, talks and press coverage

Publications

  • Two-way coupled long-wave isentropic ocean-atmosphere dynamics, Winn, SD; Sarmiento, AF; Alferez, N; Touber, E; Journal of Fluid Mechanics [link]
  • Meteotsunamis in Japan associated with the Tonga Eruption in January 2022, Kataoka, R; Winn, SD; Touber, E, SOLA [link]
  • Non-ideal Gas Effects on Supersonic-Nozzle Transfer Functions, Winn, SD; Touber, E, Proceedings of the 3rd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power: NICFD 2020 [link]

Talks

  • Long-wave isentropic ocean-atmosphere dynamics: providing faster-than-real-time, predictive modelling of the 2022 Hunga Tonga event, American Geophysical Union Meeting 2023, San Francisco [abstract] [iPoster] [Poster on ESS Open Archive]
  • Long-wave isentropic ocean-atmosphere dynamics: addressing a blind spot in tsunami warning systems, Seminar series, Summer 2023, Europe [abstract]

Press coverage

Patents

Other