Second-order moment advection scheme applied to Arctic Ocean simulation

Morales Maqueda, Miguel; Holloway, G.. 2006 Second-order moment advection scheme applied to Arctic Ocean simulation. Ocean Modelling, 14 (3-4), 197-221. 197-221. 10.1016/j.ocemod.2006.05.003

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Abstract/Summary

We apply the second-order moment (SOM) advection scheme of (Prather, M.J. 1986. Numerical advection by conservation of second-order moments. J. Geophys. Res. 91, 6671-6681.) to the simulation of the large-scale circulation of the Arctic Ocean with a coupled ocean-sea-ice model. Compared to three other advection schemes commonly employed in ocean simulations (centred differences, flux corrected transport, and multidimensional positive definite advection transport), the SOM method helps preserve the vertical structure of Arctic water masses. The depth, thickness and hydrographic properties of the Arctic Surface Water and the Arctic Atlantic Layer are better represented with SOM than with any of the other three advection algorithms. We also present a convenient method for calculating the implicit numerical diffusivity of upstream based schemes, such as the SOM method, and discuss three approaches for improving the monotonicity properties of the SOM algorithm.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1016/j.ocemod.2006.05.003
Programmes:	Other/Admin
ISSN:	1463-5003
Format Availability:	Electronic, Print
Additional Keywords:	GENERAL-CIRCULATION MODELS, FLUX-CORRECTED TRANSPORT, SMALL IMPLICIT DIFFUSION, PARABOLIC METHOD PPM, FORWARD-IN-TIME, NUMERICAL ADVECTION, ALGORITHM, DYNAMICS, FLUIDS, CONSERVATION
NORA Subject Terms:	Marine Sciences
Date made live:	01 Aug 2007 09:57 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/535

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