EN
the purpose of the undertaken survey is to assess the accuracy of the SSe2009, based on a reference dataset. the dataset contains 3,600 samples with the same spatial resolution as the final Soil Sealing layer product and covers a rectangle of 36 km2. the basis for assessing the accuracy was the photointerpretation of the orthophotomap. the overall accuracy with data division into 6 classes amounted to 65%; while divided into 2 classes: sealed and non-sealed reached 95%. the evaluation results accuracy may form the basis for future improvements in evaluation methods impervious surface.