Stations of the Tide

Stations of the Tide is a 1991 science fiction novel by Michael Swanwick. Prior to being published as a novel, it was serialized in Isaac Asimov's Science Fiction Magazine in two parts, starting in mid-December of 1990.
It won the Nebula Award for Best Novel in 1991, and was nominated for the Hugo Award for Best Novel in 1992.
Plot introduction
Spoiler warning: Plot or ending details follow.
Stations of the Tide is the story of a bureaucrat with the Department of Technology Transfer who must descend to the surface of Miranda to hunt a magician who has smuggled proscribed technology past the orbital embargo, and bring him to justice before the world is transformed by the flood of the Jubilee Tides.