Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 1
Articles | Volume 19, issue 1
https://doi.org/10.5194/gmd-19-327-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-327-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 1
Model description paper
 | 
09 Jan 2026
Model description paper |  | 09 Jan 2026

Development of CAS-ESM_MMF: improving East Asian summer precipitation simulation with a Multiscale Modeling Framework

Guangxing Lin, Wei Liao, Zhaohui Lin, He Zhang, Wenbin Kou, Xiaojie Guo, Zhenghui Xie, Qiu Yang, Chenglai Wu, and Minghua Zhang

Data sets

GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree x 0.1 degree V06 Precipitation Processing System (PPS) At NASA GSFC https://doi.org/10.5067/GPM/IMERG/3B-HH/06

Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 2.3 (Monthly) R. Adler et al. https://doi.org/10.7289/V56971M6

Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) R. Adler et al. https://doi.org/10.7289/V5RX998Z

Complete ERA5 global atmospheric reanalysis Copernicus Climate Change Service https://doi.org/10.24381/CDS.143582CF

Model code and software

CAS-ESM_MMF source code, part of model output, and plot scripts G. Lin and W. Liao https://doi.org/10.5281/zenodo.16910953

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Short summary
Traditional climate models struggle to accurately represent storm clouds, leading to large rainfall biases over East Asia. To address this, we used a multiscale modeling framework that embeds a high-resolution cloud model into each grid cell of the Chinese Academy of Sciences Earth System Model. This approach greatly improves the simulation of East Asian precipitation.
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