Sentinel-1

The purpose of this article is to analyze the results of processing time series of radar images using the Persistent Scatterer method to assess the stability of the vertical position of the reservoir dam. The object of this study is the dam of the cooling pond at the Khmelnytskyi Nuclear Power Plant. Due to production needs, the task arose to analyze the dam's stability in the vertical position using an independent method for the 2016-2022 period. Implementing such a task became possible only by utilizing a satellite radar image database for the specified area.

This work aims to analyze the effectiveness of corner reflectors deployment designed in various for InSAR monitoring by the Sentinel-1 satellite. Method. The accuracy of determining the spatial movements of the surface by the InSAR method in the places where the corner reflectors are deployed depends on their size, as well as the signal-to-clutter ratio on the radar images. Therefore, it is necessary to assess the backscattering intensity on radar images for the selected territory before installing the corner reflector.

The aim of this research is the comparison and subsequent evaluation of the suitability of using SAR (Synthetic Aperture Radar) and multispectral (MSI) satellite data of the Copernicus program for mapping and accurate identification of surface water bodies. The paper considers sudden changes caused by significant climatological-meteorological influences in the country. The surface guidance extraction methodology includes the standard preprocessing of SAR images and concluding the determination of threshold values in binary mask generation.