Percentage of green space in the Urban Morphological Zone (2012), Nov. 2019

The vector dataset presents the percentage of green space in densely built-up areas for a series of individual European cities (included in Urban Audit) for the year 2012. The presence and proportion of green space in densely built-up urban areas is an important aspect of adaptation to climate change. Green space regulates the microclimate of the city, reducing the temperatures. It also reduces the risk of flooding related to heavy precipitation, as vegetation and permeable surfaces retain and infiltrate rainwater, reducing the amount that comes into the drainage system. Data on green space was obtained from Copernicus Urban Atlas 2012, extracting the Urban Atlas classes treated as green space. The Urban Morphological Area (UMZ) dataset for 2012 and the Eurostat Urban Audit dataset (polygon, 2011-2014) were been used to calculate the total area within the core city. The values were then allocated to the city centroids from the same Eurostat Urban Audit dataset.本矢量数据集展示了2012年一系列纳入城市审计（Urban Audit）体系的欧洲单个城市的建成密集区绿地占比情况。 建成密集城区内绿地的存在与占比是适应气候变化的重要维度之一。绿地可调节城市微气候，降低城区气温；同时，植被与透水地表能够留存并下渗雨水，减少进入城市排水系统的径流量，从而降低强降水引发的内涝风险。 本数据集的绿地数据源自哥白尼城市地图集（Copernicus Urban Atlas）2012版，从中提取归类为绿地的城市地图集类别。研究采用2012年城市形态区域（Urban Morphological Area, UMZ）数据集，以及欧盟统计局（Eurostat）城市审计数据集（多边形数据，2011-2014年）核算核心城市的总面积。随后将绿地占比数值匹配至同一欧盟统计局城市审计数据集内的城市质心点位。