Air trap

{
  "id": "MLC-T-MET-003389",
  "term": "Air trap",
  "field": "Meteorology and atmospheric science",
  "definition": "A meteorological condition where a mass of air is confined horizontally by topography, such as in a valley or basin, and vertically by a stable atmospheric layer above. This situation inhibits vertical and horizontal mixing, leading to the accumulation of pollutants and moisture. Cold air drainage into a valley at night often creates a temperature inversion that traps the colder, denser air near the surface.",
  "url": "https://mlchart.com/terminology/meteorology/air-trap/"
}