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Related papers: Samudra: An AI Global Ocean Emulator for Climate

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Traditional numerical global climate models simulate the full Earth system by exchanging boundary conditions between separate simulators of the atmosphere, ocean, sea ice, land surface, and other geophysical processes. This paradigm allows…

The current explosion in machine learning for climate has led to skilled, computationally cheap emulators for the atmosphere. However, the research for ocean emulators remains nascent despite the large potential for accelerating coupled…

Atmospheric and Oceanic Physics · Physics 2024-03-08 Adam Subel , Laure Zanna

With the success of machine learning (ML) applied to climate reaching further every day, emulators have begun to show promise not only for weather but for multi-year time scales in the atmosphere. Similar work for the ocean remains nascent,…

Atmospheric and Oceanic Physics · Physics 2024-08-05 Surya Dheeshjith , Adam Subel , Shubham Gupta , Alistair Adcroft , Carlos Fernandez-Granda , Julius Busecke , Laure Zanna

Accurate and efficient global ocean state estimation remains a grand challenge for Earth system science, hindered by the dual bottlenecks of computational scalability and degraded data fidelity in traditional data assimilation (DA) and deep…

Machine Learning · Computer Science 2025-11-11 Yanfei Xiang , Yuan Gao , Hao Wu , Quan Zhang , Ruiqi Shu , Xiao Zhou , Xi Wu , Xiaomeng Huang

Projecting sea-level change in various climate-change scenarios typically involves running forward simulations of the Earth's gravitational, rotational and deformational (GRD) response to ice mass change, which requires high computational…

Atmospheric and Oceanic Physics · Physics 2025-11-18 Myungsoo Yoo , Giri Gopalan , Matthew J. Hoffman , Sophie Coulson , Holly Kyeore Han , Christopher K. Wikle , Trevor Hillebrand

We introduce CAMulator version 1, an auto-regressive machine-learned (ML) emulator of the Community Atmosphere Model version 6 (CAM6) that simulates the next atmospheric state given the prescribed sea surface temperatures and incoming solar…

Atmospheric and Oceanic Physics · Physics 2025-04-09 William E. Chapman , John S. Schreck , Yingkai Sha , David John Gagne , Dhamma Kimpara , Laure Zanna , Kirsten J. Mayer , Judith Berner

Physics-based atmosphere-land models with prescribed sea surface temperature have notable successes but also biases in their ability to represent atmospheric variability compared to observations. Recently, AI emulators and hybrid models…

Atmospheric and Oceanic Physics · Physics 2026-04-22 Ian Baxter , Hamid Pahlavan , Pedram Hassanzadeh , Katharine Rucker , Tiffany Shaw

The accurate prediction of oceanographic variables is crucial for understanding climate change, managing marine resources, and optimizing maritime activities. Traditional ocean forecasting relies on numerical models; however, these…

Machine Learning · Computer Science 2025-10-30 Víctor Medina , Giovanny A. Cuervo-Londoño , Javier Sánchez

Climate simulations, at all grid resolutions, rely on approximations that encapsulate the forcing due to unresolved processes on resolved variables, known as parameterizations. Parameterizations often lead to inaccuracies in climate models,…

Ocean General Circulation Models require extensive computational resources to reach equilibrium states, while deep learning emulators, despite offering fast predictions, lack the physical interpretability and long-term stability necessary…

Machine Learning · Computer Science 2025-02-05 Etienne Meunier , David Kamm , Guillaume Gachon , Redouane Lguensat , Julie Deshayes

Existing ML-based atmospheric models are not suitable for climate prediction, which requires long-term stability and physical consistency. We present ACE (AI2 Climate Emulator), a 200M-parameter, autoregressive machine learning emulator of…

Ocean modeling is a powerful tool for simulating the physical, chemical, and biological processes of the ocean, which is the foundation for marine science research and operational oceanography. Modern numerical ocean modeling mainly…

Atmospheric and Oceanic Physics · Physics 2023-08-11 Wei Xiong , Yanfei Xiang , Hao Wu , Shuyi Zhou , Yuze Sun , Muyuan Ma , Xiaomeng Huang

Accurate ocean forecasting is essential for supporting a wide range of marine applications. Recent advances in artificial intelligence have highlighted the potential of data-driven models to outperform traditional numerical approaches,…

There have recently been many efforts to create machine learnt atmospheric emulators designed to replace physical models. So far these have mainly focused on medium-range weather forecasting, where these `Machine Learnt Weather Prediction'…

Atmospheric and Oceanic Physics · Physics 2026-03-03 Bobby Antonio , Kristian Strommen , Hannah M. Christensen

While autoregressive machine-learning-based emulators have been trained to produce stable and accurate rollouts in the climate of the present-day and recent past, none so far have been trained to emulate the sensitivity of climate to…

Building on top of the success in AI-based atmospheric emulation, we propose an AI-based ocean emulation and downscaling framework focusing on the high-resolution regional ocean over Gulf of Mexico. Regional ocean emulation presents unique…

Short-term ocean forecast skill depends strongly on the three-dimensional ocean structure of the upper ocean, which governs stratification, subsurface heat storage, and the response of the ocean to atmospheric forcing. However, AI ocean…

Machine Learning · Computer Science 2026-05-12 Sensen Wu , Yifan Chen , Guantao Pu , Xiaoyao Sun , Yijun Chen , Jin Qi , Ming Kong , Keyi Yang , Lichen Xu , Wenguan Wang , Xiaofeng Li , Zhenhong Du

Sea ice plays an important role in stabilising the Earth system. Yet, representing its dynamics remains a major challenge for models, as the underlying processes are scale-invariant and highly anisotropic. This poses a dilemma:…

Atmospheric and Oceanic Physics · Physics 2025-11-13 Tobias Sebastian Finn , Marc Bocquet , Pierre Rampal , Charlotte Durand , Flavia Porro , Alban Farchi , Alberto Carrassi

Spatiotemporal projections in marine science are essential for understanding ocean systems and their impact on Earth's climate. However, existing AI-based and statistics-based inversion methods face challenges in leveraging ocean data,…

Applications · Statistics 2024-08-06 Zhixi Xiong , Yukang Jiang , Wenfang Lu , Xueqin Wang , Ting Tian

Long-term, high-fidelity simulation of slow-changing physical systems, such as the ocean and climate, presents a fundamental challenge in scientific computing. Traditional autoregressive machine learning models often fail in these tasks as…

Machine Learning · Computer Science 2026-01-21 Yuan Gao , Hao Wu , Fan Xu , Yanfei Xiang , Ruijian Gou , Ruiqi Shu , Qingsong Wen , Xian Wu , Kun Wang , Xiaomeng Huang
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