Abstract
This paper outlines a major new extension to the diabatic Contour-Advective Semi-Lagrangian (CASL) algorithm (Dritschel and Ambaum, 1997, 2006). The extension, called the ‘HyperCASL’ (HCASL) algorithm, advects material potential vorticity contours like in CASL, but treats diabatic forcing or damping with a Vortex-In-Cell (VIC) algorithm. As a result, HCASL is fully Lagrangian regarding advection. A conventional underlying grid is used as in CASL for ‘inversion’, namely for obtaining the advecting velocity from the potential vorticity.
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Dritschel, D.G., Fontane, J. (2010). The HyperCASL algorithm. In: Dritschel, D. (eds) IUTAM Symposium on Turbulence in the Atmosphere and Oceans. IUTAM Bookseries, vol 28. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0360-5_23
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DOI: https://doi.org/10.1007/978-94-007-0360-5_23
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-0359-9
Online ISBN: 978-94-007-0360-5
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