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DCMIP 2012: Tracer Transport Tests in Dynamical Cores

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Multiscale Numerics for the Atmosphere and Ocean

We investigate the accuracy of tracer transport algorithms in dynamical cores of weather and climate models using prescribed velocity test cases. The tests make use of three-dimensional flow, with the focus on extreme deformation, horizontal-vertical coupling, and flow in the presence of orography. These tests highlight common problems associated with advection in dynamical cores. Standard error measures allow us to assess convergence rates, monotonicity, and the effects of the diffusion mechanisms in tracer transport algorithms. We will present results form the 2012 Dynamical Core Model Intercomparison Project (DCMIP) workshop.

This talk is part of the Isaac Newton Institute Seminar Series series.

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