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air_potential_temperature

Concept · Climate and Forecast Standard Names · Draft

Terms

  • Preferred term, Draft

Definition

  • Air potential temperature is the temperature a parcel of air would have if moved dry adiabatically to a standard pressure, typically representative of mean sea level pressure. To specify the standard pressure to which the quantity applies, provide a scalar coordinate variable with standard name reference_pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values \"on-scale\" or \"difference\", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).@en

Note

    Example

      Additional technical information

      Organization
      • MSCR testers
      Created at
      07/05/2025, 6.06
      Modified at
      07/05/2025, 6.06
      URI
      http://vocab.nerc.ac.uk/collection/P07/current/CFSN0014/