Science Service System
You are here : Home : Proposals_Summary

Summary of Proposal LAN0481

TitlePolarimetry in urban areas
Investigator Schmitt, Andreas - DLR-DFD-US, Oberpfaffenhofen
Team Member
Dipl.-Umweltw. Thiel, Michael - Julius-Maximilians-Universität Würzburg, Department of Geography
SummaryUrban areas are counted among the most dynamic regions on earth. Particularly the actual process of rapid urbanisation is associated with various ecological, social and economic changes in both, the urban area and the adjacent natural environment. Moreover, the enormous concentration of population, infrastructure and capital in metropolitan areas makes urban agglomerations exceedingly vulnerable to natural or man-made disasters. In order to keep up with the effects and impacts of this development, effective urban and regional planning increasingly relies on detailed geo-spatial information on the urban dynamics and vulnerability. A key element is the identification and classification of urban structures. These structures combined with land use classifications reflect the distribution of people, industry and infrastructure but also parameters influencing the healthiness and quality of life like urban green and water bodies. The combination of city structures with social, economic, demographic and other data shall further be utilized for vulnerability assessment. Changes of the city structures are indicators and potential measures for the urban development but can also be used for damage assessment purposes in case of a disaster event. As the examination of urban structures by the help of SAR imagery is an nontrivial problem because of the geometrical properties of a SAR image, we concentrate on the use of polarimetry to identify scattering mechanisms in order to combine them to entities of interest e.g. buildings. If no automatic classification can be realized, at least a change detection based on those features extracted from reference images should be possible to map the growth of cities or damages caused by desaster events. This investigation is actually funded by DeSecure.

Back to list of proposals

© DLR 2004-2016