🗊Subjekt:Flooding.

Subjekt:Flooding.

What is a flood?

Often, flooding is caused by the winds, overtaking the water from the sea and caused an increase due to delays brought by the river at the mouth water. Flooding of this type were observed in Leningrad (1824, 1924), Netherlands (1953). On the sea coasts and islands of the flooding may occur as a result of flooding of coastal wave produced by earthquakes or volcanic eruptions in the ocean (see tsunami). Such floods are not uncommon on the shores of Japan and other Pacific islands. Floods can be caused by dam failures, dike. Floods occur in many rivers in western Europe - the Danube, Seine, Rhone, Po and others, as well as the Yangtze and Yellow rivers in China, the Mississippi and Ohio in the U.S.. In the USSR, large floods occurred on the River. Dnieper (1931) and the Volga (1908 and 1926).

Flooding can be:

High Apply a tangible material and moral damage, cover a relatively large plots of land in river valleys, flooded approximately 10-20% of agricultural land. Significantly disturb the economic and consumer lifestyle of the population. Lead to a partial evacuation. Recurrence of 20-25 years. Outstanding Cause extensive property damage, covering the entire river basins. Flooded by about 50-70% of agricultural land, some localities. Paralyze economic activity and sharply violate consumer lifestyle of the population. Lead to the necessity of mass evacuation of people and property from the flood zone and protect the most important economic projects. Recurrence of 50-100 years.