Superstandard propagation

{
  "id": "MLC-T-MET-009416",
  "term": "Superstandard propagation",
  "field": "Meteorology and atmospheric science",
  "definition": "An atmospheric condition where radio waves are bent downwards more strongly than under standard atmospheric conditions, allowing them to travel farther than their normal line-of-sight range. This phenomenon is caused by a decrease in the refractive index of the atmosphere with height that is greater than the standard rate. Superstandard propagation often occurs during temperature inversions, particularly over water.",
  "see_also": [
    "standard propagation",
    "substandard propagation"
  ],
  "url": "https://mlchart.com/terminology/meteorology/superstandard-propagation/"
}