The Ob River and the Novosibirsk Reservoir, Russia
Snow blankets this part of the West Siberian Plain in south-central Russia.
A series of lakes are visible as black areas in the lower left quadrant, on the southern edge of the plain. The largest and easternmost of these is Lake Kulundinskoye.
North of this lake, bright white due to the snow covering it, is the Novosibirsk (or Novosibirskoye) Reservoir, informally called the Ob Sea.
It is the largest artificial lake in Novosibirsk Oblast and Altai Krai, created by a hydroelectric dam on the Ob River near Novosibirsk. The reservoir is 160 km long and up to 20 km wide.
The Ob River, Russia’s fourth-largest, can be seen in the upper left quadrant above the reservoir.