MOSAIK-2 – Model-based city planning and application in climate change

Project Objectives
The main goal of the MOSAIK-2 is to further develop the urban climate model PALM-4U as a tool for practical use in municipalities as well as for scientific applications. To this end, the model is to be improved in such a way that it can answer a large number of current and future questions of socio-economic importance. In addition, tools and organizational structures are to be created that guarantee the development and use of PALM-4U in the long term on a national and international level.

In detail, the project pursues the following objectives:

  • Further evaluation based on measurement campaigns in the 1st phase and specific measurements in the 2nd phase,
  • Improved radiation scheme for building-resolving simulations, which enables the shading effects of clouds and improved long-wave radiation cooling at night,
  • Adding model components for noise propagation, photovoltaic solar power plants and forecasting windthrow from urban trees in stormy weather,
  • Improvement of the module for urban chemistry with regard to biogenic emissions, improved aerosol description, including ultrafine particles, pollen emissions and transport as well as emissions and wet deposition of pollutants,
  • Multi-agent activities: intelligent routing and integration of demographic data, expansion to road traffic and emissions,
  • Coupling of PALM-4U with a traffic flow model in order to investigate the effects of immission-based traffic flow management,
  • Optimization for new processor architectures,
  • Development of tools that enable the continuous integration of new code and the continuous provision of the model by model developers, scientists and experienced users,
  • Development of a community model and implementation of a corresponding PALM-4U governance structure.

All goals will help make PALM-4U the world's leading urban climate model for many years to come.

Project Management
Prof. Dr. Siegfried Raasch
Dr. Björn Maronga
Leibniz Universität Hannover - Faculty of Mathematics and Physics
Institute of Meteorology and Climatology
Herrenhäuser Str. 2, 30419 Hannover

Tel.: +49 511 762-5408


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