Coastline Change Assessment using Very High Resolution Satellite Images: Case Study of the Lebedivka Village Area (Ukraine)

Abstract

Summary Purpose of the work has been to assess the shoreline dynamics in Lebedivka village area (Odessa Region, North-Western Black Sea (NWBS)) using the high spatial resolution satellite images (VHRSI) in 2005–2021. Methodology. Space images LANDSAT, SENTINEL GeoEye-1, QuickBird-2, WorldView-2 and 3 for 2005–2021 have been used and processed semi-automatically using the QGIS, ArcMap10.5 and DSAS software. Conclusions. Long-term shoreline changes of various scale within the selected area “Lebedivka” in the NWBS are more effectively registered using the high-resolution space images. The shoreline movement speed values vary in the range from −2.55 to 0.73 m/year with average values of −0.81 m/year, which indicates a general tendency of the shoreline recession. The features of spatial distribution of the coastline dynamics indicators are the accretion speed positive values of up to 0. 73 m/year in the area where the root part of the bay bar adjoins the original loess shore, which is due to the change in types of shores, as well as geological and lithological conditions of the shore within the area. The data of instrumental observations performed within the area in different years give a good fit to the calculated estimates of the shorelines dynamics indicators obtained from VHRSI.