Andrew Styles

Andrew Styles

Physical Oceanographer

British Antarctic Survey

Bio

I am a physical oceanographer at the British Antarctic Survey and I study basin-scale and global-scale circulations alongside their behaviours in climate models.

I lead the adjoint component of OceanBound, an ambitious project to study the role of ocean boundary pressures in the global ocean. As an adjoint modeller, I am using the ECCO state estimate and Oceananigans to determine what external forces drive the contrasting variability of eastern and western boundary pressures.

I will be leading efforts to investigate the warming of Circumpolar Deep Water as part of SO-SIMMER. The project is an ‘under the hood’ investigation of our most accurate models of the Southern Ocean. Through a comprehensive set of modified model runs, uniquely designed to isolate relevant components of the heat equation, we aim to identify the drivers of heat accumulation beneath the ice sheet.

During my PhD at the University of Oxford (2019-2023), I studied the dynamics of the Weddell Gyre and its influence on Southern Ocean ventilation. During my investigation I designed idealized ocean models, developing diagnostic methods with clear physical interpretations, analysed Lagrangian trajectories, and exposed discrepancies between simulated oceans and theoretical Geophysical Fluid Dynamics.

Please reach out to me if you would like to meet or collaborate!

image/svg+xmlModel designAdjoint modellingDiagnostic methodsLagrangian trajectoriesPen and paper analysisdl

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Recent Posts

Announcing the GOCC meeting

I am excited to announce the very first Global Ocean Circulation and Connectivity (GOCC) meeting. The meeting will take place on Monday 7th September 2026 at Bangor University’s School of Ocean Sciences (the same week as the Challenger 2026 conference) and will provisionally run from 10:00-17:00 BST.

SNAP Seminar on 23rd March

On Monday 23rd March at 16:00 GMT, I will be giving a virtual seminar as part of the SNAP seminar series. The seminar will be an in-depth investigation of the atmospheric drivers of basin-wide geostrophic transport in the Atlantic using OceanBound’s adjoint modelling framework.

Preprint available - 'Atmospheric drivers of basin-wide geostrophic transport in the Atlantic'

The busy week of Ocean Sciences is over, during which I shared the headline results from my most recently submitted paper - ‘Atmospheric drivers of basin-wide geostrophic transport in the Atlantic’.

Recent Publications

Atmospheric drivers of basin-wide geostrophic transport in the Atlantic

The Atlantic Meridional Overturning Circulation (AMOC) is the overall effect of basin-wide meridional transport in the Atlantic, and is …

Spatial and Temporal Patterns of Southern Ocean Ventilation

Ocean ventilation translates atmospheric forcing into the ocean interior. The Southern Ocean is an important ventilation site for heat …

The Sensitivity of an Idealized Weddell Gyre to Horizontal Resolution

Estimates of the Weddell Gyre transport vary widely between climate simulations. Here, we investigate if inter-model variability can …

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