In August 2013, a massive flood occurred, which affected 98 thousand residents of the Russian Far East. Amur came out of its banks - the largest river of these places. Scientists called the flood the largest in the last hundred years. The river flooded the territories located thirty kilometers from its usual channel.
The scale of the tragedy led many people to think about why the Amur River is spreading, and whether the fatal consequences of the flood can somehow be prevented.
Bit of theory
Rivers that are located in climatic zones with sharply expressed seasons of the year or originate high in the mountains, among glaciers, always have high water and low water. In nature, there is eternal water exchange. Moisture, evaporating from the oceans, turns into clouds that carry precipitation. Rain falling on the ground penetrates the groundwater and saturates the rivers, which, in turn, carry their waves into the sea. Therefore, before you understand why Cupid spills, you need to understand what it eats.
River specifics
We are used to the fact that the floods of the rivers of Russia fall in the spring, since the vast majority of them have snow nutrition. When it becomes warm, meltwater overflows the Volga, Oka, Dnieper and similar blue arteries. Low water (the shallowest water level) occurs in them in the summer and the first half of autumn, when there is little rainfall. But Cupid is not such a typical river. It flows in the monsoon climate zone, characterized by the fact that in the summer there are east winds blowing from the Pacific Ocean.
It is in climatic features that one should look for the answer to the question of why Cupid is being poured.
Winters in this region are severe, but not very snowy. Somewhere in November, in the Amur basin, as well as on its tributaries - Zeya, Bureya, Ussuri and Sungari - freeze-up begins, which opens only in early May. For almost six months, these rivers receive only underground nutrition - from groundwater and springs. Due to the snowy winters, spring floods on local rivers are not observed.
But when the summer monsoons begin to blow, bringing downpours and typhoons from the Sea of Okhotsk and the Sea of Japan, the water level in the Amur and its tributaries rises sharply, since the food at these rivers is mainly rain.
