Mapping of Sealing in Berlin (SenStadt)
for Mapping of Sealing with High-resolution Satellite Data in an Urban
Department for Urban Development of Berlin
Institute of Geography
Prof. Dr. Patrick Hostert
Digitale Dienste Berlin
Dr. Bodo Coenradie
2006 to February 2007|
Associate:||Leilah Haag (TU Berlin)|
Alexander Damm (HU Berlin)
Dr. Bodo Coenradie (Digitale Dienste Berlin)
Lead:||Prof. Dr. Birgit Kleinschmit
hybrid mapping approach is developed for the Berlin Senate Department
of Urban Development. The method is based on high resolution satellite
images and other spatial data with the objective to provide a
homogeneous, accurate, and reproducible sealing map for the entire
An operational and cost-effective approach is developed to map the degree of sealing in urban areas. In addition to multi-spectral SPOT 5 data, geo-data from the Berlin Digital Environmental Atlas, the information system "Stadt und Umwelt" (ISU), and the digital cadastral map ("Automatisierte Liegenschaftskarte" - ALK) are integrated into the classification process. The census blocks of Berlin derived from the ISU are used as reference units.
An extensive accuracy assessment is performed to estimate the absolute accuracy of the resulting sealing map. Furthermore, an alternative SPOT 5 satellite scene is used to evaluate the repeatability and reliability of the developed approach. The quality assessment showed high accuracy levels.
The method is general enough to work with various satellite data with a spatial resolution of 4 m to 10 m. The high level of automation guarantees a fast operation, even for large datasets. The derived map will be integrated in the ISU of Berlin for updating the present sealing map.