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

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Cited articles

Aguerre, H. J., Damián, S. M., Gimenez, J. M., and Nigro, N. M.: Conservative handling of arbitrary non-conformal interfaces using an efficient supermesh, J. Comput. Phys., 335, 21–49, 2017. a
Beljaars, A., Dutra, E., Balsamo, G., and Lemarié, F.: On the numerical stability of surface–atmosphere coupling in weather and climate models, Geosci. Model Dev., 10, 977–989,, 2017. a
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Berger, M. J.: On conservation at grid interfaces, SIAM J. Numer. Anal., 24, 967–984, 1987. a, b
Blanco, J. L. and Rai, P. K.: nanoflann: a C++ header-only fork of FLANN, a library for Nearest Neighbor (NN) wih KD-trees, available at: (last access: 16 May 2020), 2014. a
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.