Accuracy Assessment of the Building Height Copernicus Data Layer: A Case Study of Bratislava, Slovakia

High buildings have generally changed the morphology of cities in recent decades, and they a significant impact on multiple processes urban area. Building height is one criteria for land cover classification local climate zone delineation heat island modeling. The European Union’s Earth observation program Copernicus aims to achieve global, continuous, autonomous, high-quality, wide-range capacity. One most Urban Atlas layers Height 2012 (BH2012) layer released 2018, which consists 10 m resolution raster containing information generated core areas capitals EEA38 countries United Kingdom. This contribution present accuracy validation BH2012 data Bratislava using Slovak Basic Database Geographic Information System (ZBGIS). To compare two datasets, four different tests were performed following group landmark buildings: (i) with area > 100 m2, (ii) classes soil sealing 10%, (iii) 50 m, (iv) 1 ha. results demonstrate effect building’s compactness vertical data. greater compactness, smaller difference between its value ZBGIS. class 11100 Continuous Fabric (soil sealing: >80%) recorded lowest accuracy. database provides sufficiently accurate primary planning analyses public administration bodies various stakeholders who need obtain nature locality development activities small-scale environmental analyses. However, detailed studies focusing quality life at level, more precise identification building recommended.