Electron density

{
  "id": "MLC-T-MET-005330",
  "term": "Electron density",
  "field": "Meteorology and atmospheric science",
  "definition": "The number of free electrons per unit volume within a plasma or other ionized gas. In the Earth's ionosphere, it is a key parameter influencing radio wave propagation and is measured by instruments such as incoherent scatter radars. Typical values in the F2 layer of the ionosphere can range from 10^11 to 10^12 electrons per cubic meter.",
  "url": "https://mlchart.com/terminology/meteorology/electron-density/"
}