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"; Short Story: "The Slow Knife"; 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")
• By 24th century, local weather control grid considered standard part of planetary colonization efforts from first settlement (Short Story: "The Slow Knife")
• 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"; TNG Novel: The Light Fantastic)
    • Developed and activated c.2190s (TNG Novel: The Light Fantastic)
  • Galor IV (Novel: Immortal Coil)
  • Hekaras II (TNG: "Force of Nature")
  • Risa (TNG: "The Mind's Eye"; DS9: "Let He Who Is Without Sin..."; SCE Short Story: "Paradise Interrupted"; NF Novel: Renaissance)
    • In place by 2150s (ENT: "Two Days and Two Nights")
  • Setlik III (Short Story: "The Slow Knife")
• Non-Federation planets known to have an analogous system:
  • Ab-Tzenketh (Novel: Rough Beasts of Empire)
  • Bajor (TLE Novel: Day of the Vipers)
    • Reference is c.2323, prior to the Bajoran Occupation
  • Danter (NF Short Story: "A Lady of Xenex")
  • Eerlik (SCE Short Story: "Fatal Error")
  • Femra (VOY Novel: Acts of Contrition)
    • Described as common for the agricultural planets of the Confederacy (VOY Novel: Acts of Contrition)
  • Pheben III (KE Novel: A Burning House)