IMPLEMENTATION OF THE SENTINEL-1 SATELLITE RADAR'S IMAGES TO MAP THE RELIEF DISPLACEMENTS IN THE EARTHQUAKE ZONE IN TURKEY ON FEBRUARY 6, 2023

Abstract

Earthquakes are one of the dangerous natural phenomena that can not be accurately forecast, so, they are currently among the insufficiently studied. Complex geological and tectonic processes occurring in the bowels of the Earth are the reason for their appearance. The instant released energy at the earthquake source manifests in the form of seismic waves, causing different types of deformations and displacements in the Earth's crust, often changing the shape and appearance of the relief. Unfortunately, strong earthquakes of this type are accompanied by great destruction and enormous human victims. Similar powerful earthquakes can include two earthquakes that were occurred on February 6, 2023 in Turkey, which had catastrophic consequences and resulted in numerous human victims. As science and technology advance, more and more different tools and methods become more available to study natural phenomena. One of these methods are space geophysical methods and tools for studying the atmosphere and the Earth's surface. Remote sensing of the Earth has found wide application in matters of qualitative, quantitative study and analysis of the processes occurring in the Earth's crust and reflected on the Earth's surface. This work focuses on the study of one of these processes. In particular, the methods of Earth observation and remote sensing by synthetic aperture radars on the satellite base are widely used. Modern synthetic aperture radars give as wide range of opportunities for studying the slightest deformations and displacements on the Earth's surface as well as man-made objects The scope of this research is the InSar technique of interferometric processing of radar images derived from the Sentinel-1 satellites. Based on differential interferograms, have been maped the studied area's displacements, expressed in centimeters.