Air pocket

{
  "id": "MLC-T-MET-010354",
  "term": "Air pocket",
  "field": "Meteorology and atmospheric science",
  "definition": "A colloquial expression for a localized downdraft or a region of descending air that causes an aircraft to experience a sudden, brief drop in altitude. These are not actual pockets devoid of air but are areas of turbulence or downward vertical motion, such as clear-air turbulence or microbursts. The sensation of falling is created when the aircraft encounters a column of air moving downward faster than the aircraft's own descent rate.",
  "url": "https://mlchart.com/terminology/meteorology/air-pocket/"
}