Dear prof Perissin.
We are still working on the seismic event of Zakynthos island thanks to SAPROZ software and your valuable assistance. We want to find the cumulitive deformation over the island for co-seismic and post seimsic period by stacking interferograms with the seme geometry of acquisition, and thus I have a question for you. How can I stack 2 or 3 interferograms produced using the same geometry of aquisition? Is there any tutorial about stacking?