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Daniel Holmberg

@dholmberg.bsky.social

131 followers 112 following 15 posts

Graph Nets + Physics | Visiting PhD Student at Geometric Intelligence Lab, UC Santa Barbara 🌐 danielholmberg.fi

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Daniel Holmberg @dholmberg.bsky.social · 01/06/2026

• Lastly, animation of an extra long sea ice concentration rollout over the spring of 2024 for the Baltic Sea, with reanalysis atmospheric forcing. The regional model remains surprisingly stable while only trained with 2 autoregressive steps.

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Daniel Holmberg @dholmberg.bsky.social · 01/06/2026

• Njord is trained globally at 0.25° and on the Baltic Sea at 2km resolution. In the regional setting Njord conditions on boundary data from an independent global ocean model, where previous emulators either lack boundary forcing or depend on the very system they aim to replace.

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Daniel Holmberg @dholmberg.bsky.social · 01/06/2026

The ocean is inherently chaotic, yet existing data-driven ocean models produce deterministic forecasts. In our new preprint, we introduce Njord, a probabilistic graph neural network for ensemble ocean forecasting. Link: arxiv.org/abs/2605.15470 A couple highlights below 🧵

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Daniel Holmberg @dholmberg.bsky.social · 01/12/2025

Are you interested in ML for space/plasma physics? I'll be presenting “Graph-based Neural Space Weather Forecasting” this Saturday at the ML for physics workshop in San Diego @neuripsconf.bsky.social 🚀 📄 Paper: arxiv.org/abs/2509.19605 💻 Code: github.com/fmihpc/space... #AI4Science #ML4PS

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Daniel Holmberg @dholmberg.bsky.social · 25/11/2024

🌊 Meet SeaCast, a new, openly available graph neural network for regional ocean forecasting. Paper: arxiv.org/abs/2410.11807. Looking forward to presenting this work at the Climate Change AI workshop taking place at @neuripsconf.bsky.social in December! 🧵 Small thread below.

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