Volume XLII-3/W4
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W4, 129-135, 2018
https://doi.org/10.5194/isprs-archives-XLII-3-W4-129-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W4, 129-135, 2018
https://doi.org/10.5194/isprs-archives-XLII-3-W4-129-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  06 Mar 2018

06 Mar 2018

A MULTI-SOURCE DATA APPROACH FOR THE INVESTIGATION OF LAND SUBSIDENCE IN THE KONYA BASIN, TURKEY

F. Calò1, D. Notti2, J. P. Galve3, S. Abdikan4, T. Görüm5, O. Orhan6, H. B. Makineci7, A. Pepe1, M. Yakar8, and F. Balik Şanli9 F. Calò et al.
  • 1National Research Council (CNR) of Italy, Institute for the Electromagnetic Sensing of the Environment (IREA), Napoli, Italy
  • 2National Research Council (CNR) of Italy, Research Institute for Geo-Hydrological Protection (IRPI), Torino, Italy
  • 3Department of Geodynamics, University of Granada, Granada, Spain
  • 4Department of Geomatics Engineering, Engineering Faculty, Bulent Ecevit University, Zonguldak, Turkey
  • 5Geography Department, Istanbul University, Istanbul, Turkey
  • 6Department of Earth and Environment, Florida International University, Miami, USA
  • 7Geomatics Engineering Department, Faculty of Engineering, Selcuk University, Konya, Turkey
  • 8Geomatics Engineering Department, Faculty of Engineering, Mersin University, Mersin, Turkey
  • 9Department of Geomatic Engineering, Civil Engineering Faculty, Yildiz Technical University, Istanbul, Turkey

Keywords: Remote Sensing, Differential SAR Interferometry (DInSAR), Small BAseline Subset (SBAS), GRACE, Subsidence, Sinkholes, Groundwater, Turkey

Abstract. Groundwater depletion caused by rapid population growth, global climate change, water resources overexploitation is a major concern in many regions of the world. Consequences are not limited to a non-renewable water loss but extend to environmental degradation and geo-hazards risk increase. In areas where excessive groundwater withdrawal occurs, land subsidence induced by aquifer compaction is observed, resulting in severe socio-economic damage for the affected communities. In this work, we apply a multi-source data approach to investigate the fragile environment of Konya plain, central Turkey. The area, which is under strong anthropogenic pressures and faces with serious water-related problems, is widely affected by land subsidence. In order to analyze the spatial and temporal pattern of the subsidence process we use the Small BAseline Subset DInSAR technique to process two datasets of ENVISAT SAR images spanning the 2002–2010 period and to produce ground deformation maps and associated time-series. Results, complemented with meteorological, stratigraphic and piezometric data as well as with land-cover information, allow us to obtain a comprehensive picture of the climatic, hydrogeological and human dynamics of the study area.