The global atmospheric tracer model TM2

Heimann, Martin

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The global atmospheric tracer model TM2

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Heimann, Martin
MPI for Meteorology, Max Planck Society;

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DKRZ-Technical-Report-No.10.pdf
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Heimann, M. (1996). The global atmospheric tracer model TM2. Technical Report / Deutsches Klimarechenzentrum, Hamburg, 10.

Cite as: https://hdl.handle.net/21.11116/0000-0009-139B-3

Abstract

TM2 is a three-dimensional atmospheric transport model which solves the continuity equation for an arbitrary number of atmospheric tracers on an Eulerian grid spanning the entire globe. It is driven by
stored meteorological fields from analyses of a weather forecast model or from output of an atmospheric
general circulation model. Tracer advection is calculated using the “slopes scheme” of Russell and
Lerner [1981]. Vertical transport due to convective clouds is computed using a simplified version of the
cloud mass flux scheme of Tiedke [1989]. Turbulent vertical transport is calculated by stability dependent vertical diffusion according to the scheme by Louis [1979].