Modelling

The CarboSense project has a special focus on the city of Zurich, with 40 sensors deployed with the urban area merged with a high-resolution modelling system, GRAMM/GRAL.

Modelling system: GRAMM/GRAL

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We use the GRAMM/GRAL nested modelling system to simulate the mesoscale flow in complex urban terrain as well as the dispersion of air pollutants down to building resolving scales. GRAMM/GRAL is a coupled Eulerian (GRAMM; Graz Mesoscale Model wind fields) and Lagrangian (microphysics Graz Lagrangian Model) model, developed at the Graz University of Technology, Austria, and supported by the Federal State Government of Styria, Austria.

It was designed to reproduce 3D concentration fields of passive pollutants at very high resolution in complex topographic and building configurations. Application examples include environmental impact assessments of road networks, industrial complexes or street tunnel portals, odor impact assessments, and the simulation of air pollution levels in entire cities.

The complete documentation of GRAMM/GRAL is available here. Further details on our modelling system are given here

Integration of CO2 measurements in the system

soon to come

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