Ice Station by Peter Tonkin

Richard Mariner has responded to a call to Ice Station Zemlya in need of assistance. The floating Russian nuclear facility has lost some key people due to apparent accidents and is attempting to dock at Leningradskiy. An approaching ice storm is cause for alarm and when people keep disappearing or dying Mariner is suspicious that there is more going on than appears on the surface. An intriguing tale of modern cooperation between nations in the nuclear age. A good read.