Weather control grid

• Federation term for satellite networks used to manipulate planetary weather (TNG: "The Mind's Eye", "True Q", "Sub Rosa", "Force of Nature"; DS9: "Let He Who Is Without Sin...")
  • Primary purpose is to avert major loss of life from significant meteorological events by dispersing them safely during early stages of their manifestation (TNG: "True Q")
• Potentially derived from Risan technology, as the Risan control grid existed pre-Federation (ENT: "Two Days and Two Nights")
• Federation planets known to have weather control grids installed:
  • Caldos II (TNG: "Sub Rosa")
  • Earth (TNG: "True Q")
  • Galor IV (Novel: Immortal Coil)
  • Hekaras II (TNG: "Force of Nature")
  • Risa (TNG: "The Mind's Eye"; DS9: "Let He Who Is Without Sin...")
• Non-Federation planets known to have an analogous system:
  • Ab-Tzenketh (Novel: Rough Beasts of Empire)
  • Eerlik (SCE Short Story: "Fatal Error")