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DOI | 10.1029/2019MS001700 |
Evaluation of Implicit-Explicit Additive Runge-Kutta Integrators for the HOMME-NH Dynamical Core | |
Vogl C.J.; Steyer A.; Reynolds D.R.; Ullrich P.A.; Woodward C.S. | |
发表日期 | 2019 |
ISSN | 19422466 |
起始页码 | 4228 |
结束页码 | 4244 |
卷号 | 11期号:12 |
英文摘要 | The nonhydrostatic High-Order Method Modeling Environment (HOMME-NH) atmospheric dynamical core supports acoustic waves that propagate significantly faster than the advective wind speed, thus greatly limiting the time step size that can be used with standard explicit time integration methods. Resolving acoustic waves is unnecessary for accurate climate and weather prediction. This numerical stiffness is addressed herein by considering implicit-explicit additive Runge-Kutta (ARK IMEX) methods that can treat the acoustic waves in a stable manner without requiring implicit treatment of nonstiff modes. Various ARK IMEX methods are evaluated for their efficiency in producing accurate solutions, ability to take large time step sizes, and sensitivity to grid cell length ratio. Both the gravity wave test and baroclinic instability test from the 2012 Dynamical Core Model Intercomparison Project are used to recommend 5 of the 27 ARK IMEX methods tested for use in HOMME-NH. ©2019. The Authors. |
英文关键词 | additive Runge-Kutta; dynamical core; E3SM; HOMME-NH; IMEX; nonhydrostatic |
语种 | 英语 |
scopus关键词 | Acoustic wave propagation; Acoustic waves; Additives; Numerical methods; Wind; Additive Runge-Kutta; Dynamical core; E3SM; HOMME-NH; IMEX; Non-hydrostatic; Runge Kutta methods; additive; baroclinic instability; gravity wave; hydrostatic pressure; instability; numerical model; prediction; stiffness; weather forecasting |
来源期刊 | Journal of Advances in Modeling Earth Systems |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/156805 |
作者单位 | Center for Applied Scientific Computing, Lawrence Livermore National Laboratory, Livermore, CA, United States; Sandia National Laboratories, Albuquerque, NM, United States; Department of Mathematics, Southern Methodist University, Dallas, TX, United States; Department of Land, Air and Water Resources, University of California, Davis, CA, United States |
推荐引用方式 GB/T 7714 | Vogl C.J.,Steyer A.,Reynolds D.R.,et al. Evaluation of Implicit-Explicit Additive Runge-Kutta Integrators for the HOMME-NH Dynamical Core[J],2019,11(12). |
APA | Vogl C.J.,Steyer A.,Reynolds D.R.,Ullrich P.A.,&Woodward C.S..(2019).Evaluation of Implicit-Explicit Additive Runge-Kutta Integrators for the HOMME-NH Dynamical Core.Journal of Advances in Modeling Earth Systems,11(12). |
MLA | Vogl C.J.,et al."Evaluation of Implicit-Explicit Additive Runge-Kutta Integrators for the HOMME-NH Dynamical Core".Journal of Advances in Modeling Earth Systems 11.12(2019). |
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