Science Service System

Summary of Proposal LAN2277

TitleEnvironmental impact assessment in the Motru-Rovinaricoal basin with Staring Spotlight TerraSAR-X mode
Investigator Poenaru, Violeta Domnica - Romanian Space Agency, Space Applications
Team Members
PhD Dana-Negula, Iulia - Romanian Space Agency, Space Applications
PhD. stud. Nedelcu, Ion - Romanian Space Agency, Space Applications
PhD stud. Cuculici, Roxana - University of Bucharest, Faculty of Geography
Prof. Datcu, Mihai - German Aerospace Center DLR, Applied Remote Sensing Cluster Photogrammetry and Image Analysis
SummaryThe goal of this proposal is to evaluate new Staring Spotlight mode capabilities to monitor the mining activities impacts on the environment in order to ensure an effective management and to prevent possible natural and technological hazards. The societal and environmental impacts are huge such as: the topographic alteration, changes in the soil structure and vegetation coverage, influence on the underground water resources and on the rain water draining regime and air pollution. Recent studies in the test area are focused on the water sources distribution and contamination monitoring, socio-economic aspects (Braghina, 2008), spoil heaps stability (Anghel, 2009), functional reintegration of the degraded geomorphological systems (Anghel, 2007) and coal deposits management (Barus,1987). The significant extent of mining operation suggests that the InSAR based degradation monitoring techniques could be applicable. In the proposal we will take advantage of the very high spatial and temporal resolution of TerraSAR InSAR to constrain the rate and spatial extent of land degradation in Motru -Rovinari coal basin. The methods to be used are: InSAR - to create a DEM from a pair of data with large baseline and higher coherence; differential InSAR - to create interferograms with deformation information; Stacking - to reduce atmospheric distortions; eventually PSInSAR - to avoid the use of temporal deformation models. A both coherent and non-coherent multi-temporal analysis will be carried out for persistent scatterers and coherent scatterers stability evaluation. Multi-temporal SAR data could be another source of information, besides radar backscatters, by analyzing how the temporal coherence characteristics vary to the scene. Leveling measurements could be made consequently with TerraSAR acquisitions (depending on access to the mining area). The degradation maps will help to assess the environmental risk and sustain the mining management for landscape rehabilitation. The required data ares takes of Staring Spotlight mode images covering the Rosia Jiu quarry (44.8830N, 23.1840E). A set of 25 scenes is required to minimize properly atmospheric distortions and topographic errors. The funding of the project is supported by the Romanian Space Agency.

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DLR 2004-2016