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DOE OSTI · 3399558

Hacking Kilometer-Scale Models: A Participative Model for Climate Information

Gettelman, Andrew [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000282842599)·Vidale, Pier Luigi [University of Reading (United Kingdom)]·Stevens, Bjorn [Max Planck Institute for Meteorology, Hamburg (Germany)]·Ziemen, Florian [Deutsches Klimarechenzentrum (DKRZ), Hamburg (Germany)]·Feng, Zhe [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Konow, Heike [Max Planck Institute for Meteorology, Hamburg (Germany)]·Kölling, Tobias [Max Planck Institute for Meteorology, Hamburg (Germany)]·Kluft, Lukas [Max Planck Institute for Meteorology, Hamburg (Germany)]·Jones, William [Oxford University (United Kingdom)]·Pasqualetto, Sara [World Climate Research Programme (WCRP), Hamburg (Germany); Deutsches Klimarechenzentrum (DKRZ), Hamburg (Germany)]·Wu, Yuting [Max Planck Institute for Meteorology, Hamburg (Germany)]·Brose, Saskia [European Space Agency, Frascati (Italy)]·Clyne, John [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)]·Fita, Lluís [Centro de Investigaciones del Mar y la Atmósfera (UBA-CONICET), Buenos Aires (Argentina); Institut Franco-Argentin d’Études sur le Climat et ses Impacts (IRL IFAECI), Buenos Aires (Argentina)]·Green, Samuel [ARC Centre of Excellence for 21st Century Weather, Clayton, VIC (Australia); University of New South Wales, Sydney, NSW (Australia)]·Harris, Lucas [National Oceanic and Atmospheric Administration (NOAA), Princeton, NJ (United States). Geophysical Fluid Dynamics Laboratory]·Hart, Melissa Anne [ARC Centre of Excellence for 21st Century Weather, Clayton, VIC (Australia); University of Tasmania, Hobart, TAS (Australia)]·Kukulies, Julia [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)]·Medeiros, Brian [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)]·Merlis, Timothy M. [Princeton University, Princeton, NJ (United States)]·Muetzelfeldt, Mark [University of Reading (United Kingdom)]·Pincus, Robert [Columbia University, New York, NY (United States)]·da Rocha, Rosmeri P. [University of Sao Paulo (Brazil)]·Satoh, Masaki [University of Tokyo (Japan); Yokohama National University (Japan)]·Su, Hang [Chinese Academy of Sciences (CAS), Beijing (China). Institute for Atmospheric Physics (IAP)]·Takasuka, Daisuke [Tohoku University, Sendai (Japan)]·Terai, Chris [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Ullrich, Paul [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Zhou, Tianjun [Chinese Academy of Sciences (CAS), Beijing (China). Institute for Atmospheric Physics (IAP)]
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Abstract

In May 2025, nearly 700 participants from all around the world coalesced at 10 regional nodes and a few satellite nodes to take part in a global hackathon of kilometer-scale (horizontal grid spacing < 10 km) regional and global Earth system models. Exciting science is emerging from these efforts, ranging across novel model analysis, new ways of integrating with satellite data, and emulation with machine learning. New technologies were trialed that enable the community to work in new and complementary ways to democratize access to global information at a local scale from a set of the world’s highest-resolution climate models. The hackathon demonstrated how exascale data can be organized to be accessible to anyone. Fundamentally, the community could apply these techniques and technologies to move toward more participative models for coproduction and delivery of diverse sources of climate information for climate scientists and citizens alike.

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BibTeXRIS

Gettelman, Andrew [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000282842599), Vidale, Pier Luigi [University of Reading (United Kingdom)], Stevens, Bjorn [Max Planck Institute for Meteorology, Hamburg (Germany)], Ziemen, Florian [Deutsches Klimarechenzentrum (DKRZ), Hamburg (Germany)], Feng, Zhe [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Konow, Heike [Max Planck Institute for Meteorology, Hamburg (Germany)], Kölling, Tobias [Max Planck Institute for Meteorology, Hamburg (Germany)], Kluft, Lukas [Max Planck Institute for Meteorology, Hamburg (Germany)], Jones, William [Oxford University (United Kingdom)], Pasqualetto, Sara [World Climate Research Programme (WCRP), Hamburg (Germany); Deutsches Klimarechenzentrum (DKRZ), Hamburg (Germany)], Wu, Yuting [Max Planck Institute for Meteorology, Hamburg (Germany)], Brose, Saskia [European Space Agency, Frascati (Italy)], Clyne, John [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)], Fita, Lluís [Centro de Investigaciones del Mar y la Atmósfera (UBA-CONICET), Buenos Aires (Argentina); Institut Franco-Argentin d’Études sur le Climat et ses Impacts (IRL IFAECI), Buenos Aires (Argentina)], Green, Samuel [ARC Centre of Excellence for 21st Century Weather, Clayton, VIC (Australia); University of New South Wales, Sydney, NSW (Australia)], Harris, Lucas [National Oceanic and Atmospheric Administration (NOAA), Princeton, NJ (United States). Geophysical Fluid Dynamics Laboratory], Hart, Melissa Anne [ARC Centre of Excellence for 21st Century Weather, Clayton, VIC (Australia); University of Tasmania, Hobart, TAS (Australia)], Kukulies, Julia [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)], Medeiros, Brian [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)], Merlis, Timothy M. [Princeton University, Princeton, NJ (United States)], Muetzelfeldt, Mark [University of Reading (United Kingdom)], Pincus, Robert [Columbia University, New York, NY (United States)], da Rocha, Rosmeri P. [University of Sao Paulo (Brazil)], Satoh, Masaki [University of Tokyo (Japan); Yokohama National University (Japan)], Su, Hang [Chinese Academy of Sciences (CAS), Beijing (China). Institute for Atmospheric Physics (IAP)], Takasuka, Daisuke [Tohoku University, Sendai (Japan)], Terai, Chris [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Ullrich, Paul [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Zhou, Tianjun [Chinese Academy of Sciences (CAS), Beijing (China). Institute for Atmospheric Physics (IAP)]. 2026-07-01. Hacking Kilometer-Scale Models: A Participative Model for Climate Information. https://doi.org/10.1175/bams-d-25-0183.1

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