Pressure spectrum

{
  "id": "MLC-T-MET-010686",
  "term": "Pressure spectrum",
  "field": "Meteorology and atmospheric science",
  "definition": "A representation of how the variance or energy of atmospheric pressure fluctuations is distributed over a range of frequencies or wavenumbers. It is calculated by applying a Fourier transform to a time series of pressure data. This analysis reveals the dominant scales of atmospheric motion, from small-scale turbulence to large-scale planetary waves, by showing which frequencies contain the most power.",
  "url": "https://mlchart.com/terminology/meteorology/pressure-spectrum/"
}