Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 15, issue 16
Articles | Volume 15, issue 16
https://doi.org/10.5194/gmd-15-6285-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-6285-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 16
Development and technical paper
 | 
16 Aug 2022
Development and technical paper |  | 16 Aug 2022

Islet: interpolation semi-Lagrangian element-based transport

Andrew M. Bradley, Peter A. Bosler, and Oksana Guba

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Cited articles

Bosler, P. A., Bradley, A. M., and Taylor, M. A.: Conservative multimoment transport along characteristics for discontinuous Galerkin methods, SIAM J. Sci. Comput., 41, B870–B902, 2019. a, b
Bradley, A. M.: COMPOSE (v1.1.2): Methods for Islet paper, Zenodo [code], https://doi.org/10.5281/zenodo.5595499, 2021a. a
Bradley, A. M.: Methods data for Islet paper, Zenodo [data set], https://doi.org/10.5281/zenodo.5595518, 2021b. a
Bradley, A. M., Bosler, P. A., Guba, O., Taylor, M. A., and Barnett, G. A.: Communication-efficient property preservation in tracer transport, SIAM J. on Sci. Comput., 41, C161–C193, 2019. a, b, c, d, e, f, g, h
Bradley, A. M., Bosler, P. A., and Guba, O.: Islet: Interpolation semi-Lagrangian element-based transport, Geosci. Model Dev. Discuss., [preprint], https://doi.org/10.5194/gmd-2021-296, 2021. a, b, c
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Tracer transport in atmosphere models can be computationally expensive. We describe a flexible and efficient interpolation semi-Lagrangian method, the Islet method. It permits using up to three grids that share an element grid: a dynamics grid for computing quantities such as the wind velocity; a physics parameterizations grid; and a tracer grid. The Islet method performs well on a number of verification problems and achieves high performance in the E3SM Atmosphere Model version 2.
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