Tropopause fold

{
  "id": "MLC-T-MET-009814",
  "term": "Tropopause fold",
  "field": "Meteorology and atmospheric science",
  "definition": "A downward intrusion of stratospheric air into the upper troposphere, often occurring in association with strong upper-level fronts and jet streaks. This process can bring dry, ozone-rich stratospheric air into the troposphere, influencing atmospheric chemistry and cloud formation. It is a mechanism for stratospheric-tropospheric exchange.",
  "url": "https://mlchart.com/terminology/meteorology/tropopause-fold/"
}