A flexible Regional Ocean Modeling System-based hybrid coupled model for El Niño–Southern Oscillation studies – model formulation and performance evaluation

Yu, Yang; Li, Yin-Nan; Zhang, Rong-Hua; Chen, Shu-Hua; Tseng, Yu-Heng; Zhang, Wenzhe; Wang, Hongna

doi:https://doi.org/10.5194/gmd-18-5527-2025

Articles | Volume 18, issue 17

https://doi.org/10.5194/gmd-18-5527-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-5527-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 17

Model description paper

|

03 Sep 2025

Model description paper |

| 03 Sep 2025

A flexible Regional Ocean Modeling System-based hybrid coupled model for El Niño–Southern Oscillation studies – model formulation and performance evaluation

Yang Yu, Yin-Nan Li, Rong-Hua Zhang, Shu-Hua Chen, Yu-Heng Tseng, Wenzhe Zhang, and Hongna Wang

Data sets

Optimum Interpolation Sea Surface Temperature (OISST NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/optimum-interpolation-sst

COREv2 air–sea surface fluxes NCAR https://climatedataguide.ucar.edu/climate-data/corev2-air-sea-surface-fluxes

Model code and software

ROMS-based Hybrid Coupled Model (HCM) v1.0 (ROMS-HCM_v1.0) Y. Yu https://doi.org/10.5281/zenodo.14184175

Short summary

In this paper, we develop a new flexible hybrid coupled model (HCM) by incorporating the Regional Ocean Modeling System (ROMS) into a statistical atmospheric model. The model performance is evaluated for its ability to simulate processes related to El Niño–Southern Oscillation (ENSO). The newly developed HCM_ROMS is expected to become an effective modeling tool for studying the multiscale and multisphere interactions associated with ENSO in the tropical Pacific.