Welcome to the website of the Cost Action ES0602: Towards a European Network on Chemical Weather Forecasting and Information Systems

The action has been finalized, as planned, in April 2011. Nevertheless, the action members remain very active in their field of activities, while the action web site will remain up and running. One of the action outcomes, provided via this web site, is the European Chemical Weather Forecasting Portal, a registered GEOSS service, which is planned to be updated and enriched with new functionalities, even after the action’s end, with the support of FMI and AUTh.

Brief description

Aims and participants

The COST ES0602 action provides a forum for benchmarking approaches and practices in data exchange and multi-model capabilities for chemical weather forecasting and near real-time information services in Europe. The action includes approximately 30 participants from 19 countries, and its duration is from 2007 to 2011.

Input data

Major efforts have been dedicated in other actions and projects to the development of infrastructures for data flow. We have therefore aimed for collaboration with ongoing actions towards developing near real-time exchange of input data for air quality forecasting.


We have collected information on the operational air quality forecasting models on a regional and continental scale in a structured form, and inter-compared and evaluated the physical and chemical structure of these models. We have also constructed a European chemical weather forecasting portal that includes links to most of the available chemical weather forecasting systems in Europe.


The collaboration also includes the examination of the case studies that have been organized within COST-728, and the field experiment of the MEGAPOLI project. We have also planned to construct an operational model forecasting ensemble. Data from a representative set of regional background stations have been selected, and the operational forecasts for this set of sites will be inter-compared and evaluated.

Dissemination of information

The Action has investigated, analysed and reviewed existing chemical weather information systems and services, and will provide recommendations on best practices concerning the presentation and dissemination of chemical weather information towards the public and decision makers.

Work Packages

  • WP1 - Exchange of AQ forecasts and input data
  • WP2 - Multi-scale forecasting, multi-model ensemble, boundary data
  • WP3 - Dissemination and visualization
  • WP4 - Cross-cutting and integration


Simulations of estimated dispersion of radiological materials in case of nuclear accident in Japan:

AUTh/ISAG, and those generating the simulation products for which the links are provided, accept no responsibility for actions based on usage of these results.


The AirMerge System is an extension of the ChemicalWeather portal, and allows you to view, combine and compare results from chemical weather models.