Please share! 4yr funded EPSRC PhD opportunity to work with me on compatible finite element algorithms for the compressible Euler equations! exeter.ac.uk/studying/fundi…

#minätutkin how novel mathematical methods could help us model coastal oceans more accurately #myresearch

I am excited to give a talk about programming models for LUMI supercomputer supercomputer at ECMWF workshop on #HPC in meteorology. I will be  discussing porting solutions among weather and climate community. events.ecmwf.int/event/169/time…

Hot off the press🔥. Our new paper describes the Nemo-Nordic 2.0 operational marine model for the Baltic Sea. The model is used for operational forecasting at Copernicus Marine and @FMI_marine. Forecast products are freely available via marine.copernicus.eu 📰:doi.org/10.5194/gmd-14…

Attending the ECMWF #HPC workshop this week. Great talks in the program: events.ecmwf.int/event/169/time…

Generating unstructured meshes for ocean modeling is always a challenge. Here's an example for the North Sea/Baltic Sea. Resolution has to be sufficiently high to resolve the coastal topography and the open boundary must be placed outside the shallow continental shelf sea.

Modeling sea surface height in the North Sea/Baltic Sea. The shallow Danish Straits effectively filter out the tides. In the Baltic, SSH is mainly controlled by winds, atmospheric pressure, and seiche oscillations. Simulated with the Thetis ocean model (thetisproject.org).

Recent storms have increased water level in the Baltic Sea and increased the risk of coastal flooding. Yesterday I did a forecast simulation with Thetis 2D model. The forecast seems to capture storm-induced water level variability in the Bay of Bothnia fairly well.

Can ocean model parameters be inferred from observational data? We used Thetis adoint model to optimize bottom friction coefficient in a Baltic Sea simulation based on tide gauge sea surface height observations. Preprint: arxiv.org/abs/2205.01343

We have two postdoc positions available at Imperial_Maths working on Firedrake Project and contributing to FEniCS Project and PETSc. Come and join us at Imperial College London! More details at: imperial.ac.uk/jobs/descripti…

📕The Mathematics of Marine Modelling book is out. With Sigrun Ortleb and Jonathan Lambrechts we wrote a chapter about wetting-drying methods in FV/DG-FE shallow water models. 🔗doi.org/10.1007/978-3-…

Our paper presents an automated procedure to optimize ocean model parameters. The procedure is very similar to training in machine learning — the main difference is that the model is a physics-based PDE solver. Inverse model is automatically generated. doi.org/10.1029/2022MS…