ИСТИНА

Sea level changes are seriously affected the dynamic of the sea coastal zone and therefore the environment of surrounding territories. Studying these processes is very important because of possible future greenhouse-induced global sea-level rise. A strong possibility exists for the accelerated sea-level rise during the next century. According to the Intergovernmental Panel on Climate Change (IPCC) scenarios for greenhouse gas emissions, the global mean sea level will rise by 0.14-0.88 m until 2100. However, even a few decimeter sea level raise would have substantial negative consequences for coastal morphology and environmental conditions. Passive inundation of low-lying land edge will occur only in few coastal segments: in small semi-enclosed bays and on very gentle-sloping coasts, i.e. where wave and tidal energy dissipates long before the coastline. In most cases, an active reformation and general destruction of depositional bodies and intensified retreat of erosion scarps is inevitable. Loss of unique coastal habitats and increased risk of natural hazards are also inevitable. Coastal zones will exert the substantial economic and environmental damage due to shoreline retreat and changes in the environmental conditions at the preserved part of land areas due to underground flooding and other related processes. In addition to the direct loss of property, many agricultural areas and industrial facilities will need reconstruction or change of their specialization. It is reasonable to face the problem of assessment of possible losses in terms of changes in stability and vulnerability of coastal systems.