Imperial College London
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ProfessorColinCotter

Faculty of Natural Sciences, Department of Mathematics

Professor of Computational Mathematics
 
 
 
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Contact

 

+44 (0)20 7594 3468colin.cotter

 
 
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Location

 

755Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Melvin:2019:10.1002/qj.3501,
author = {Melvin, T and Benacchio, T and Shipway, B and Wood, N and Thuburn, J and Cotter, C},
doi = {10.1002/qj.3501},
journal = {Quarterly Journal of the Royal Meteorological Society},
pages = {2835--2853},
title = {A mixed finite-element, finite-volume, semi-implicit discretisation for atmospheric dynamics: Cartesian geometry},
url = {http://dx.doi.org/10.1002/qj.3501},
volume = {145},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - To meet the challenges posed by future generations of massively parallel supercomputers a reformulation of the dynamical core for the Met Office’s weather and climate model is presented. This new dynamical core uses explicit finitevolume type discretisations for the transport of scalar fields coupled with an iteratedimplicit, mixed finiteelement discretisation for all other terms. The target model aims to maintain the accuracy, stability and mimetic properties of the existing Met Office model independent of the chosen mesh while improving the conservation properties of the model. This paper details that proposed formulation and, as a first step towards complete testing, demonstrates its performance for a number of test cases in (the context of) a Cartesian domain. The new model is shown to produce similar results to both the existing semiimplicit semiLagrangian model used at the Met Office and other models in the literature on a range of bubble tests and orographically forced flows in two and three dimensions.
AU  - Melvin,T
AU  - Benacchio,T
AU  - Shipway,B
AU  - Wood,N
AU  - Thuburn,J
AU  - Cotter,C
DO  - 10.1002/qj.3501
EP  - 2853
PY  - 2019///
SN  - 0035-9009
SP  - 2835
TI  - A mixed finite-element, finite-volume, semi-implicit discretisation for atmospheric dynamics: Cartesian geometry
T2  - Quarterly Journal of the Royal Meteorological Society
UR  - http://dx.doi.org/10.1002/qj.3501
UR  - http://hdl.handle.net/10044/1/67617
VL  - 145
ER  -
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