Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 13, issue 5
Articles | Volume 13, issue 5
https://doi.org/10.5194/gmd-13-2355-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-13-2355-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 5
Development and technical paper
 | 
26 May 2020
Development and technical paper |  | 26 May 2020

Improving climate model coupling through a complete mesh representation: a case study with E3SM (v1) and MOAB (v5.x)

Vijay S. Mahadevan, Iulian Grindeanu, Robert Jacob, and Jason Sarich

Model code and software

Energy Exascale Earth System Model source code E3SM Project https://github.com/E3SM-Project/E3SM

MOAB: A Mesh-Oriented datABase T. J. Tautges, R. Meyers, K. Merkley, C. Stimpson, and C. Ernst https://bitbucket.org/fathomteam/moab

MOAB v5.1.0 V. Mahadevan, I. Grindeanu, and R. Jain https://doi.org/10.5281/zenodo.2584863

TempestRemap v2.0.2 P. Ullrich and V. Mahadevan https://github.com/ClimateGlobalChange/tempestremap

Video supplement

Serial advancing front mesh intersection V. Mahadevan, I. Grindeanu, R. Jacob, and J. Sarich https://doi.org/10.6084/m9.figshare.7294901

Parallel advancing front mesh intersection V. Mahadevan, I. Grindeanu, R. Jacob, and J. Sarich https://doi.org/10.6084/m9.figshare.7294919

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Short summary
Accurate climate modeling of coupled Earth systems requires mapping of solution field data between dependent components that use non-matching discrete meshes. While existing workflows provide a pathway to generate the projection weights as an offline step, severe bottlenecks impede flexible setup of high-resolution models. In this paper, we present new algorithmic approaches to simplify the E3SM computational workflow using a scalable software infrastructure to generate the remapping operators.
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