Science Service System

Summary of Proposal GEO2806

TitleMeasuring ground displacement using InSAR techniques
Investigator Marjanovic, Milos - TUM, Chair of Landslide Research
Team Member
Msc Djuric, Uros - Faculty of Civil Engineering, University of Belgrade, Geotechnics
Dipl.Geol. Minet, Christian - German Aerospace Center (DLR), Earth Observation Center, Remote Sensing Technology Institute
SummaryThe project objectives involve utilizing of TerraSAR-X data (at highest available resolution) to analyze target displacement phenomena. The latter involve ground subsidence and landsliding. Two case studies are designed to utilize the data so the project can be sub-segmented accordingly.

The first study area encompasses NW area of the City of Belgrade, wherein some parts are composed of loess deposits, while others represent artificial embankments. Loess deposits are infamous for their sudden deformations, which is the primary motif for this area. Otherwise, this part of the city is constantly growing, as it represents the business core of the city with high corporative buildings rising every now and then. Due to the artificial, well compacted material, there is only initial type of subsidence, that we estimate it would be possible to capture by appropriate imagery. We will use typical InSAR techniques on scenes with same geometry (same orbits, overlapping beams) with high resolution (spotlight mode). Results will be compared to the ground data that has been obtained for some of the important corporative buildings. In addition, we will try to use same images to track the landslide movement along the right riverbank of the Sava River, where we have established monitoring campaigns earlier, and we confidently know the displacement rates from 2010 onwards. In this sense, we could compare and potentially calibrate the data.

The second case study will involve the City of Tuzla in Eastern Bosnia and Herzegovina, well-known salt mine underground excavation site. It is rather common that these types of mines are causing significant subsidence in the wider area, and to best of our knowledge InSAR techniques have not been implemented in monitoring the dynamics of these salt mines. This unprecedented attempt will be undertaken in cooperation with colleagues from Tuzla and stripmap mode products will be used (higher resolutions are not available).

Back to list of proposals

DLR 2004-2016