Potential temperature

{
  "id": "MLC-T-CHM-009318",
  "term": "Potential temperature",
  "field": "Chemistry",
  "definition": "The temperature a parcel of air would attain if it were brought adiabatically, meaning without heat exchange with its surroundings, to a standard reference pressure. This conserved quantity allows for direct comparison of the thermal state of air masses at different altitudes or pressures. The standard reference pressure is almost always 1000 millibars (100 kPa).",
  "subject": "Chemistry and the Environment",
  "see_also": [
    "standard pressure"
  ],
  "references": [
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2207 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/potential-temperature/"
}