Advances in Numerical Earth System Modeling: Identifying Systematic Errors and Charting Innovative Approaches to Enhance Numerical Weather and Climate Prediction
Convener:
Werner Bauer
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Co-conveners:
Ariane Frassoni,
Jemma Shipton,
Tim Graham,
Hiroe YamazakiECSECS,
Ron McTaggart-Cowan,
Christian Kühnlein
Orals
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Tue, 29 Apr, 08:30–10:15 (CEST) Room 1.85/86
Posters on site
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Attendance Tue, 29 Apr, 10:45–12:30 (CEST) | Display Tue, 29 Apr, 08:30–12:30 Hall X5
Despite significant progress, challenges persist in identifying and correcting errors within individual ESM components, exacerbated by complex inter-component interactions. Moreover, limitations in the observational network hinder the full constraint of ESMs. Efforts to assess, test, and enhance models have reduced major systematic errors, yet challenges persist while new ones have emerged. Ongoing research and development efforts focus on enhancing the accuracy, seeking a better representation of different processes in ESMs by identifying and correcting systematic errors, but also considering the efficiency, and scalability of ESM components, including the dynamical core, physics, and their coupling.
This session invites contributions related to the development, testing, and application of innovative techniques for ESMs, as well as contributions that provide a deep understanding of the nature and causes of systematic errors in ESMs. Topics encompass governing equations, horizontal and vertical discretizations, structure-preserving methods, time-stepping schemes (including parallel in time schemes), advection schemes, adaptive multi-scale models, model errors across space and time scales, hierarchies of models, physics-dynamics and physics-physics cross-component coupling, initialized predictions, climatology of weather prediction models, data assimilation methodologies, the use of ML to identify errors and detect causal connections, stochastic parameterization for uncertainty representation, and verification diagnostics and metrics for characterizing systematic errors and process understanding across various modeling communities (regional and global km-scale modeling).
08:30–08:35
5-minute convener introduction
08:35–08:45
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EGU25-1213
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On-site presentation
08:45–08:55
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EGU25-6960
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On-site presentation
08:55–09:05
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EGU25-2801
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ECS
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On-site presentation
09:05–09:15
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EGU25-15654
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ECS
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On-site presentation
09:15–09:25
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EGU25-19435
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On-site presentation
09:25–09:35
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EGU25-5694
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ECS
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On-site presentation
09:35–09:45
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EGU25-2978
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ECS
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On-site presentation
09:45–09:55
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EGU25-4105
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On-site presentation
09:55–10:05
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EGU25-7001
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ECS
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On-site presentation
10:05–10:15
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EGU25-11140
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On-site presentation
Mitigating Nighttime Warm Bias in the GFS: The Role of Soil Organic Matter in Soil Thermal Conductivity
(withdrawn)
X5.96
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EGU25-4636
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ECS
X5.106
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EGU25-19121
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ECS