The aim of this study is to detect ventilation corridors in three epochs (1992, 2002 and 2011) by mapping rough urban areas. roughness parameters calculations are based on a 3D building database obtained from satellite imagery (SPOT) for thee conducted accordingly morphometric methods. Several paths clearly recognisable all decades the proximity analysis (by calculating length (z0) zero-plane displacement height (zd)), we established their extent analysed structural developmental changes. We...

The presence of urban green areas significantly impacts inhabitants' well-being. However, comparative studies across European cities are constraint by administrative boundaries, which commonly do not match the continuous built-up area. This makes research on environmental indicators very problematic, as boundaries usually appropriate to define human environment. Therefore, this study aimis explore use night-time light (NTL) images International Space Station (ISS) delineate area (CBA)...

Abstract. The aim of this study is to develop a consistent methodology determine urban areas that are particularly vulnerable the effects heavy, rapid rains. They are, as result climate change, more and prevalent in temperate climate, usually spring – summer from mid-May late August involve risk flash floods. In recent years, increase incidences such phenomena noticeable throughout whole Europe. It assumed through analysis environmental infrastructural conditions, using developed...

Cities, recognized as one of the roughest surfaces, significantly reduce wind velocity. This leads to a greater concentration pollution and increased temperature in urban areas. A proper design may promote air flow mitigate these negative phenomena. paper describes novel approach detect analyze potential ventilation corridors. The concept is based on morphometric analyses, where roughness parameters (such length displacement height), well porosity are investigated opposed previous studies....

Abstract This paper presents the results of urban indicators analysis conducted within Warsaw’s ventilation corridors from 1992 to 2011. The literature review shows that Floor Area Ratio (FAR) index is one best detect development; therefore, this was core analysis. Three periods were analysed (1992 – 2002 2011), as such a long time-span allows assumption change will be visible. divided into 500 m and 100 grids FAR calculated for each cell. highlight alarming changes some corridors,...

This paper describes detection and evaluation of urban ventilation corridors uses Warsaw as an example dense, temperate - zone environment. The potential are derived based on the roughness parameters mapping in three different epochs: 1992, 2002, 2011 later compared to designed law-protected areas, which theory, should form system air exchange Warsaw. These years have been chosen time when spatial planning law was introduced local zoning plans for were passed, including preserved areas...

Cities can be characterized with the roughest aerodynamic boundaries, which results in enhanced turbulent motion and increased drag effect. This leads to reduced wind speeds directly increases negative effects of living within urban areas. Urban Heat Island, decreased air quality or densely built-up residential/industrial areas occur many cities, both temperate tropical regions, are included these effects. case study investigates Warsaw, capital Poland, representing a dense, environment,...