C-Coupler3.0: an integrated coupler infrastructure for Earth system modeling.

The Community Coupler (C-Coupler) for Earth system modeling is a coupler family that has been developed in China since 2010. C-Coupler3.0, the latest version, is fully compatible with the previous version, C-Coupler2, and is an integrated infrastructure with new features. i.e., a series of parallel optimization technologies for accelerating coupling initialization and reducing memory usage, a common halo-exchange library for developing a parallel version of a model, a common module-integration framework for integrating a software module (e.g., a flux algorithm, a parameterization scheme, and a data assimilation method), a common framework for conveniently developing a weakly coupled ensemble data assimilation system, and a common framework for flexibly inputting and outputting fields in parallel. Specifically, C-Coupler3.0 is able to handle coupling under much finer resolutions (e.g., more than 100 million horizontal grid cells) with fast coupling initialization and successful generation of remapping weight files. [ABSTRACT FROM AUTHOR]

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