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SUMMARY:Finite element exterior calculus framework for geophysical fluid d
 ynamics - Cotter\, C (Imperial College London)
DTSTART:20120824T150000Z
DTEND:20120824T153000Z
UID:TALK39385@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Finite element exterior calculus provides an extension of the 
 mimetic differencing approach that underlies the C-grid schemes used in th
 e ICON and MPAS projects. This talk will lay out an extension of this appr
 oach\, in particular of the approach of Ringler\, Thuburn\, Skamarock and 
 Klemp (2010)\, to a finite element framework. The required properties of (
 a) stationary geostrophic linear modes on the f-plane\, (b) local conserva
 tion of mass\, and (c) conservative\, consistent advection of potential vo
 rticity are retaining in this framework\, whilst allowing higher-order acc
 uracy and increased flexibility which can be used to alter the balance of 
 vorticity and mass degrees of freedom to minimise the potential for spurio
 us modes. \n
LOCATION:Seminar Room 1\, Newton Institute
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