I am a Research Associate currently working with Associate Professor Mark Holzer within the School of Mathematics and Statistics of the University of New South Wales, Sydney. My latest research focus has been on the response of the global ocean’s [carbon]() and [oxygen]() cycles to climate change using novel tools and diagnostics.

More generally, my research broadly encompasses anything related to marine biogeochemical cycles and tracers, which requires a bit of mathematics, physics, biology, chemistry, and computer science (see publications).

I am also the developer of AIBECS, a Julia package that allows oceanographers to simulate marine tracers with ease — check it out!

- Mathematics
- Oceanography
- Model development
- Optimization
- Computer science
- Biogeochemistry

PhD in Applied Mathematics, 2017

University of New South Wales

MSc in Environmental Science, 2010

University of New South Wales

MSc in Finance Mathematics, 2008

Université Paris Dauphine

MSc in Mathematics and Engineering, 2007

École Polytechnique

The future of the marine carbon cycle is vitally important for climate and the fertility of the oceans. However, predictions of future …

Accurate predictive modeling of the ocean’s global carbon and oxygen cycles is challenging because of uncertainties in both …

Spatially distant sources of neodymium (Nd) to the ocean that carry different isotopic signatures (εNd) have been shown to trace out …

We develop novel locally defined diagnostics for the efficiency of the ocean’s biological pump by tracing carbon throughout its …

Large compilations of heterogeneous environmental observations are increasingly available as public databases, allowing researchers to …

We explore how the iron dependence of the Si:P uptake ratio *R*^{Si:P} of diatoms controls the response of the global silicon cycle and …

It is well recognized that the atmospheric deposition of iron (Fe) affects ocean productivity, atmospheric CO2 uptake, ecosystem …

Iron fertilization is explored by tracking dissolved iron (DFe) through its life cycle from injection by aeolian, sedimentary, and …

The ocean’s nutrient cycles are important for the carbon balance of the climate system and for shaping the ocean’s …

We use tracers to partition dissolved iron (dFe) into the contributions from each source within a numerical model of the iron cycle …

We systematically quantify the pathways and time scales that set the efficiency, *E*_{bio}, of the global biological pump by applying …

*#### Ocean Grids

#### AIBECS

#### Dual Matrix Tools

#### F-1 Method

#### World Ocean Atlas Tools

#### Hyper Dual Matrix Tools

#### Inpaintings

OceanGrids.jl: Ocean grids for AIBECS.

The ideal tool for exploring global marine biogeochemical cycles.

DualMatrixTools.jl: A Julia package for solving dual-valued linear systems.

A simple, accurate, and fast AD tool for computing the Hessian of an objective function defined implictly by a system of PDEs.

WorldOceanAtlasTools.jl: A Julia package for data from the World Ocean Atlas.

HyperDualMatrixTools.jl: A Julia package for solving hyperdual-valued linear systems.

Inpaintings.jl: A Julia package to inpaint missing data.

Progress in global marine biogeochemistry increasingly relies on models. In general, converting conceptual mechanisms into useful …

Introducing a Julia package to efficiently differentiate an objective function defined implicitly by the solution of a large PDE …

Running standard global marine biogeochemistry models comes with large computational costs and with a steep learning curve. The …

One of the most successful tools made available to oceanographers recently is the Ocean Data View (ODV) software, used “for the …

A key question about the iron cycle is how much export is supported by the different iron sources (aeolian, sedimentary, and …

We construct a mechanistic inverse model of the ocean’s coupled phosphorus, silicon, and iron cycles and analyze the response of …

“FePSi” is the first data-constrained mechanistic inverse model coupling the iron (Fe), phosphorus (P), and silicon (Si) …

We construct a data-constrained mechanistic inverse model of the ocean’s coupled phosphorus and iron cycles. The nutrient cycling …

We quantify the timescales and pathways that set the efficiency of the biological pump (the fraction of the phosphate inventory that is …

We construct a data-constrained model of the ocean’s coupled macronutrient and micronutrient cycles. The model focuses initially …

Nutrient transport and biological teleconnections of Ocean surface regions are diagnosed in a data-assimilated circulation model …

Studying the biological pump in a changing climate with Mark Holzer.

Modelling global marine cycles of trace metals and their isotopes with Seth John.

Working on improving global biogeochemistry models with J. Keith Moore and François Primeau.

Continuing PhD work with Mark Holzer.

Numerical Methods and Statistics, 2nd year.

Managed tendering projects for Design, Construction, Maintenance and Operation contracts. Participated in business development, liaising with potential clients, advertising on company capabilities.

MASEF Internship, researched new detection and calculation techniques for high frequency data used in automated arbitrage. In particular, developed real-time, unbiased stochastic moments calculation algorithms.

École Polytechnique Specialty (Mathematics) Internship at the Laurent Schwartz Mathematics Center under the direction of Jean Lannes. Calculated the Witt ring of quadratic forms defined on number fields, on the field of p-adic numbers, and on Dedekind rings such as the integers.

The Bioforce institue provides training and careers advice in aid programmes and logistics. Developed an Access database to improve communication and management.