In this section
@article{Cotter:2009:10.1016/j.ocemod.2008.09.002,
author = {Cotter, CJ and Ham, DA and Pain, CC},
doi = {10.1016/j.ocemod.2008.09.002},
journal = {Ocean Modelling},
pages = {86--90},
title = {A mixed discontinuous/continuous finite element pair for shallow-water ocean modelling},
url = {http://dx.doi.org/10.1016/j.ocemod.2008.09.002},
volume = {26},
year = {2009}
}
TY - JOUR
AB - We introduce a mixed discontinuous/continuous finite element pair for ocean modelling, with continuous quadratic layer thickness and discontinuous velocity. We investigate the finite element pair applied to the linear shallow-water equations on an f-plane. The element pair has the property that all geostrophically balanced states which strongly satisfy the boundary conditions have discrete divergence equal to exactly zero and hence are exactly steady states of the discretised equations. This means that the finite element pair has excellent geostrophic balance properties. We also show that the element pair applied to the non-rotating linear shallow-water equations does not have any spurious small eigenvalues. We illustrate these properties using numerical tests and provide convergence calculations which show that the numerical solutions have errors which decay quadratically with element edge length for both velocity and layer thickness.
AU - Cotter,CJ
AU - Ham,DA
AU - Pain,CC
DO - 10.1016/j.ocemod.2008.09.002
EP - 90
PY - 2009///
SN - 1463-5003
SP - 86
TI - A mixed discontinuous/continuous finite element pair for shallow-water ocean modelling
T2 - Ocean Modelling
UR - http://dx.doi.org/10.1016/j.ocemod.2008.09.002
UR - http://hdl.handle.net/10044/1/12772
VL - 26
ER -