The E3SM version 1 single-column model

Bogenschutz, Peter A.; Tang, Shuaiqi; Caldwell, Peter M.; Xie, Shaocheng; Lin, Wuyin; Chen, Yao-Sheng

The single-column model (SCM) functionality of the Energy Exascale Earth System Model version 1 (E3SMv1) is described in this paper. The E3SM SCM was adopted from the SCM used in the Community Atmosphere Model (CAM) but has evolved significantly since then. We describe changes made to the aerosol specification in the SCM, idealizations, and developments made so that the SCM uses the same dynamical core as the full general circulation model (GCM) component. Based on these changes, we describe and demonstrate the seamless capability to “replay” a GCM column using the SCM. We give an overview of the E3SM case library and briefly describe which cases may serve as useful proxies for replicating and investigate some long-standing biases in the full GCM runs while demonstrating that the E3SM SCM is an efficient tool for both model development and evaluation.

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Bogenschutz, Peter A. / Tang, Shuaiqi / Caldwell, Peter M. / et al: The E3SM version 1 single-column model. 2020. Copernicus Publications.

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