• The central goal is the development, validation and application of a modern, efficient and user-friendly urban climate model.

  • The model will allow simulations of atmospheric processes for large cities in size from 1000 to 2000 km² (e.g. Berlin) with grid-resolved buildings (spatial resolution 10 m or finer).

  • Besides large massively-parallel computers, the model shall also run on local PCs and workstations.

  • A web-based user interface will allow to define input data and model setups, to carry out the simulations, and to analyze and assess model output data.

  • Model documentation, tutorials and free access to model source code will be provided.

  • Extensive observational data sets on weather, climate and air quality in large cities (Berlin, Hamburg, Stuttgart) are required to test and assess the performance of the urban climate model.

  • Existing data will be processed and new observational data sets are acquired by long-term observations and measurements during intense observation periods.

  • For this purpose, new measurement concepts and analysis tools will be developed and tested. Three-dimensional atmospheric data sets can also directly be used in applications for urban planning and air quality control, among others.

  • A users and requirements catalogue will be compiled to ensure that users’ needs can be incorporated directly into the model development.

  • The practical and user serviceability of the new urban climate model will be tested by practice partners using test applications and case studies.

  • The new urban climate model shall be integrated in existing climate services to ensure continuation of activities.

Knowledge Base

KB [UC]²

only for participants


Third intense measurement campaigns in Berlin, Hamburg and Stuttgart from January till February. Check out the last campaigns here.

Dec 2017: Release of the new urban climate model PALM-4U (beta)! Congrats to the developer! For further information visit www.palm4u.org


Annual Meeting 2018 June 21-22 in Cologne