Study of the Relationship between Solar Radiation and the Level of Geological Hazard

The amount of solar radiation (WH/m 2 ) is an important element in considering all processes on the Earth's surface.The study of the distribution of solar radiation allows mapping and analyzing the effects of the sun and sunlight on a given geographical area for a certain period of time.The modeling of solar radiation is based on the digital elevation model (DEM).It depends on many factors, such as the influence of the atmosphere, latitude and altitude, steepness (slope) and direction of inclination (exposure) of the slope, daily and seasonal changes in the angle of the sun, etc. Mapping the spatial distribution of the amount of solar radiation is useful in a number of fields, such as agriculture, resource management, meteorology, civil engineering, environmental studies, tourism, etc.This study examines the relationship between the amount of solar radiation, its spatial distribution and geological hazard.The study was conducted on the coastal zone of the Republic of Bulgaria.Bulgaria with a width of 20 km, as an important section of the country's critical infrastructure.A connection has been established between the amount of solar radiation, the relief and the areas with increased geological hazard.