MLchartDataset catalogue

Critical level

Term · Meteorology and atmospheric science · MLC-T-MET-004762

A specific altitude in the atmosphere where the phase speed of an atmospheric wave matches the mean flow speed. At this level, wave energy can be absorbed or reflected, leading to wave breaking or momentum deposition into the mean flow. This phenomenon is particularly relevant for gravity waves and planetary waves.

Table 1. Record
IdentifierMLC-T-MET-004762
FieldMeteorology and atmospheric science
See alsoBuoyancy wave; Critical level of escape
Record as JSON
{
  "id": "MLC-T-MET-004762",
  "term": "Critical level",
  "field": "Meteorology and atmospheric science",
  "definition": "A specific altitude in the atmosphere where the phase speed of an atmospheric wave matches the mean flow speed. At this level, wave energy can be absorbed or reflected, leading to wave breaking or momentum deposition into the mean flow. This phenomenon is particularly relevant for gravity waves and planetary waves.",
  "see_also": [
    "buoyancy wave",
    "critical level of escape"
  ],
  "url": "https://mlchart.com/terminology/meteorology/critical-level/"
}

Record 2,306 of 10,816 in Meteorology and atmospheric science terminology (MLC-0110). Request the full dataset.