TRANSFORMATION OF WATER RUNOFF AND SEDIMENTATION IN THE CHERNORECHENSK RESERVOIR
Basing on the materials of surveying carried out in February 2018, the morphometric parameters of the Chernorechensk reservoir, the main source of drinking water in Sevastopol, were defined more precisely. It was found that for 62 years of the reservoir's existence, the volume of silting amounted to 4,82 million m3, which is about 7,9% of its effective storage. Sedimentation rate in the deep water zone of the Chernorechensk reservoir with an area of about 4 km2 is about 19 mm per year. According to the estimates of various components of silting, the bank transformation accounts for the largest share (70%), while the sediment inflow from the watershed and the autochthonous production are on average 15% each.