eng URI http://hdl.handle.net/10795/3698 γεωφυσικό περιβάλλον ατμοσφαιρική ρύπανση κλιματική αλλαγή The rapid land use changes that took place in the Greater Athens Area (GAA) the past decades, due to the expansion of the urban grid, have changed the landscape of Attica significantly. Areas that were covered by low vegetation in the past are now replaced by roads (e.g. Attiki Odos) and new towns. On the other hand, accurate and updated data of land use are necessary for simulating the meteorological fields above urban areas, which in turn are given as input to photochemical models in order to study the dispersion of pollutants above urban areas. The purpose of the present work is to study the effects of land use changes on the meteorological parameters, such as wind speed profiles and temperature. For this reason, the meteorological mesoscale model MM5 was applied, using updated land use data. The model ran with the grid nesting method using two grids, the fine one covering the GAA with a spatial resolution of 5 × 5 km2. Results showed that the land use changes affected wind and temperature fields. Wind velocities decreased above areas covered by urban grid that were previously characterised as shrub land, while above the rapidly developing eastern suburbs of Attica an increase in velocities appeared. 6 pp. LOMv1.0 creator LOMv1.0 publisher LOMv1.0 Scientific Coordinator LOMv1.0 Project Executing Organisation 2012-06-01 Digital Library of the Operational Programme "Education and Lifelong Learning" abstract types Text Land Meteorological parameters Pollutants Temperature Model MM5 Athens Area http://link.springer.com/chapter/10.1007%2F978-3-642-29172-2_11 221153 application/pdf http://repository.edulll.gr/edulll/bitstream/10795/3698/2/3698_1.124_%ce%91%ce%9d_1_6_12.pdf URI http://hdl.handle.net/10795/3698 LOMv1.0creator 2016-06-21T13:54:16Z LOMv1.0validator 2016-06-21T13:54:16Z LOMv1.0 gre no no Copyright EYD-EPEDBM (Operational Programme "Education and Lifelong Learning")