Browse

In recent years GNSS studies play an increasing role in studding of natural risk hazards and active tectonics. The area of Sofia is part of the broad South-Balkan Extensional Tectonic System. This highly populated area of economic significance, even showing to be not so active as other parts of the System is also affected by natural hazards, as active seismicity, landslides, rock falls, debris, etc. GNSS studies are extremely important for understanding of natural hazards and recent geodynamics of the area, especi...

This article outlines time series analysis of sea level data from Varna tide gauge stations, to solve for short and long term sea level variations. The period of observations span to 1928 - 2022. Monthly sea level data were processed using a linear regression model includes mean sea level, trend, annual, semiannual and decadal variations. Analysis of monthly sea level data for period 1928-2022 clearly indicates annual and decadal variations of mean sea level. Hourly sea level data of radar tide gauge include the p...