Pressure wave

{
  "id": "MLC-T-MET-008137",
  "term": "Pressure wave",
  "field": "Meteorology and atmospheric science",
  "definition": "A disturbance that propagates through a fluid medium, like the atmosphere, characterized by alternating regions of higher and lower pressure. These waves transfer energy from one point to another without a net displacement of the medium itself, and are generated by phenomena including explosions, volcanic eruptions, and meteorological events. The speed of a pressure wave, also known as an acoustic wave, is the speed of sound, which is approximately 343 meters per second in dry air at 20°C.",
  "see_also": [
    "sound wave",
    "compression wave",
    "microbarm"
  ],
  "url": "https://mlchart.com/terminology/meteorology/pressure-wave/"
}