the subject of the order is the performance of services, Hereinafter referred to as maintenance works, Related to maintenance of natural river channels and canals in proper technical condition, And regulatory structures and water facilities located thereon that are primary water melioration facilities to ensure: - flood protection, - ice flow and counteracting unfavorable ice phenomena
, - conditions for the use of water including maintaining a water table at the level enabling operation of water facilities, - water equipment operation, In particular their appropriate technical and functional condition.
Therefore, instead of absolute values we employed annual deviations of ice phenomena timing and air temperature from multiyear averages:
This model can be used to estimate ice events for previously unexplored lakes and forecast changes of ice phenomena under the potential climate change conditions.
Streletskoye - ice phenomena
(Volgograd - clean, Black yar - ice break, Enotayevsk - ice drift, Astrakhan - remain in reserve, (in 2017 - Volgograd, Black yar, Yenotaevsk, Astrakhan - clean)).
At the same time, in the Volga-Don and Volga basins, ice phenomena are still being preserved, but the first tankers are in a hurry to "go to work" in a short summer navigation on the southern sections of waterways.
But even here the weather makes its own corrections, the ice phenomena on the part of the rivers are preserved.
In the Don river basin, ice phenomena
are observed in the form of ice, ice with holes, partial incomplete ice, and areas of clean water.
at selected stations equipped with sensors for measuring water temperature, indicating that formation of ice phenomena
in the profile.