Daniel SZATMÁRI, Institute of Geography, Slovak Academy of Sciences, Slovakia
Ján FERANEC, Institute of Geography, Slovak Academy of Sciences, Slovakia
Cities of the world are growing fast with increasing populations. The growth rates of urban areas depend upon the local culture, economy, climate, and other factors. High buildings in cities generally influence the micro-environment by casting shadows and blocking sunlight, and affect the historic fabric while reshaping the city’s skyline, consuming massive energy, and requiring a high operational cost (Ali and Al-Kodmany 2012, Du et al. 2018). Holec et al. (2020) used building height as one of the criteria for urban land cover classification in the process of urban heat island modelling. The quantitative relationship between the spatial variation of the building height and the associated albedo and land surface temperature change was investigated by Yang and Li (2015) and Wang and Xu (2021).
Obtaining insights into the dynamics of urban structure is crucial to the framing of the context within the smart city concepts. With the availability of high-resolution remote sensing imagery and multi-source geospatial data including building height, there is a great need to transform it into helpful information for different environmental analyses. Being part of the Copernicus Programme, the Urban Atlas (UA) provides pan-European comparable land cover and land use data. This contribution aims to present the accuracy validation of the height of buildings data within the UA classes in the city of Bratislava using Building Height 2012 data. This 10 m high-resolution raster layer contains building height information generated for core urban areas of the EEA38 and the UK capitals. Height information is based on IRS-P5 stereo images and derived datasets. The accuracy of the building height within the UA classes was validated using the Slovak Basic Database of the Geoinformation system.. The obtained results contribute to the refinement of UA data about the building heights and thus increases their information potential for various environmental analyzes and assessments.
Mots clés : accuracy validation|Building Height 2012|Copernicus|Urban Atlas|Bratislava
A102764MK