 |
| Titel |
The CityZen Project - Bridging the Scales with Focus on Megacities |
| VerfasserIn |
L. Rouïl, M. Gauss, The CITYZEN partners Team |
| Konferenz |
EGU General Assembly 2009
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250031177
|
|
|
|
|
|
| Zusammenfassung |
| The CityZen project (megaCITY – Zoom for the ENvironment) is funded through the 7th Framework Programme of the European Commission and started in September 2008. During three years air pollution distributions and changes are determined in and around selected megacities and emission hotspots over the last decade from extensive satellite and in-situ observations, and a series of different scale models (local-regional-global) is employed in order to analyze the impacts of air pollution hot spots on regional and global air quality and conversely the contribution from regional and global background to the air pollution in these high emission areas. Moreover potential future changes for various climate scenarios will also be investigated with the modeling systems implemented in CityZen. The focus is on ozone and particulate matter and their precursors. The Eastern Mediterranean, the Po Valley (Italy), the BeNeLux region, the Pearl River Delta (China) and the hot and polluted European summer 2003 are chosen for intensive case studies. A set of chemical transport models connecting the global, regional and urban scales is developed and used to quantify how the observed air pollution arises and develops. Climate change may cause changes in air pollution in and around emission hotspots, and hotspot pollution can change precipitation, temperature and albedo parameters that drive climate change. These feedbacks are studied in scale-bridging model systems based on global climate model scenarios, and in coupled high resolution chemistry-climate models. The model systems evaluated in the project are applied to analyse mitigation options in and around hotpots, taking into account climate change, and control measures likely to be taken by policy makers in the future. Therefore scenarios based on best available technologies and sectoral changes are studied. This paper reviews first results from the CityZen project with emphasis on climate-air quality interactions, presents the case studies and the opportunities for collaboration with its sister FP7 project MEGAPOLI. Also, potential collaboration with other partners will be discussed. |
|
|
|
|
|
|