Skip to content

Main content

Potential Temperature Reference Ratio Tool

Apply a supplied constant dry-adiabatic exponent and explicit reference pressure; no atmospheric profile is inferred.

Loading tool…

Description

Return potential-temperature scaling with a supplied exponent.

Atmospheric state formulas depend on absolute temperature, pressure reference, water mass/volume bases and layer assumptions. Local adiabatic, hydrostatic or precipitation terms can illustrate a supplied model without reconstructing an actual profile, validating an instrument or predicting weather hazards.

Return potential-temperature scaling with a supplied exponent.

When to use this tool

Use Potential Temperature Reference Ratio when checking the stated atmospheric pressure, temperature, humidity or water-basis term.

How to use the tool and how it works

  1. Enter temperatureKelvin, pressure, referencePressure, suppliedExponent. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read referenceRatio, potentialTemperatureKelvin. Use the output convention below.

Return potential-temperature scaling with a supplied exponent. Require positive absolute temperature and both pressures; referenceRatio = (referencePressure/pressure)^exponent, potentialTemperature = temperature*ratio.1

Input fieldMeaning and unitsAccepted input
temperatureKelvinTemperature KelvinRequired. Finite number; strictly above 0.
pressurePressureRequired. Finite number; strictly above 0.
referencePressureReference PressureRequired. Finite number; strictly above 0.
suppliedExponentSupplied ExponentRequired. Finite number.
Output fieldInterpretationReturned shape
referenceRatioReference RatioRequired. Finite number.
potentialTemperatureKelvinPotential Temperature KelvinRequired. Finite number.
json
{
  "input": {
    "temperatureKelvin": 300,
    "pressure": 500,
    "referencePressure": 1000,
    "suppliedExponent": 1
  },
  "output": {
    "referenceRatio": 2,
    "potentialTemperatureKelvin": 600
  }
}

Limitations and assumptions

  • Pressures share units and exponent is supplied; no dry/moist exponent, reference pressure or observed parcel state is selected.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified observations and an appropriate complete thermodynamic/profile analysis with explicit units, references and moisture assumptions for meteorological conclusions.

References

  1. Calculation and input contract: atmospheric-science/potential-temperature-reference-ratio — tool.io

Similar or alternative tools