Collaborative Research: Frameworks: CyberWater2: Enabling Modular and Reproducible Earth System Modeling

Résumé fourni par la source

CyberWater2 has made substantial progress across multiple areas. Since August 2025, we have released four new versions of CyberWater (v1.0.0 – v1.0.3), introducing numerous enhancements, including a fully operational auto-updater. We have also significantly advanced the server-based Data Exchange Service (DES), on top of last year’s innovative development of the DES mechanism for two-way open coupling of computational models. By decoupling software implementation from scientific model development, DES enables externally developed models to be integrated online into global Earth system simulations without redesigning the native Earth system model coupler. DES also supports controlled regional substitution experiments that isolate the impacts of alternative process representations, providing a powerful capability for hypothesis-driven investigations of structural uncertainty and regional land–atmosphere feedbacks. More broadly, DES introduces a new paradigm for Earth system modeling by enabling scientific innovation through modular integration of external models rather than monolithic modification of existing Earth system model components.We demonstrate this capability by integrating CyberWater with the Energy Exascale Earth System Model (E3SM), enabling bidirectional online coupling between E3SM running on a high-performance computing system and the Variable Infiltration Capacity (VIC) land surface model hosted within CyberWater, illustrated by a real-world study for Hurricane Irene in August 2011. In parallel, we have developed reproducible workflow-based calibration and precipitation downscaling benchmarking frameworks within CyberWater, further extending its capabilities for environmental modeling and reproducible computational science.

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