Using advanced multi-interferogram methodologies, we estimated the displacement rate field for the wider Athens metropolitan area and for two time periods: 1992-1999 and 2002-2010 using ERS and Envisat data respectively. Two adjacent descending tracks and one ascending track were used. The extended spatial coverage of the ground velocity maps provided for the first time valuable information for the local displacement patterns in the wider Athens area, with unprecedented accuracy. These maps can become a benchmark for surface deformation studies in the region.

UrbanSubsidence1 web

Line-of-sight deformation velocities for the greater Athens metropolitan area, in the period 1992-1999

 
UrbanSubsidence2 web

Line-of-sight deformation velocities for the greater Athens metropolitan area, in the period 2002-2010

Reference:

  • Papoutsis I. (2013) Radar Interferometry for Monitoring Crustal Deformation. Geodetic Applications in Greece. PhD Thesis, National Technical University of Athens.