potential temperature

From Glossary of Meteorology
(Redirected from Potential temperatures)
  1. The temperature that an unsaturated parcel of dry air would have if brought adiabatically and reversibly from its initial state to a standard pressure, p0, typically 100 kPa.
    Its mathematical expression is
    ams2001glos-Pe37
    where θ is the potential temperature, T is temperature, and κ is the Poisson constant. This exponent is often assumed to be 2/7, the ratio of the gas constant to the specific heat capacity at constant pressure for an ideal diatomic gas.
    See virtual potential temperature, liquid water potential temperature, equivalent potential temperature, wet-bulb potential temperature.
  2. In oceanography, the temperature that a water sample would attain if raised adiabatically to the sea surface.
    For the deepest points of the ocean, which are just over 10 000 m, the adiabatic cooling would be less than 1.5°C.

temperatura potencial

  1. Es la temperatura que tendría una parcela insaturada de aire seco si se llevara adiabática y reversiblemente desde su estado inicial a una presión estándar, p0, típicamente 100 kPa.
    Su expresión matemática es
    ams2001glos-Pe37
    donde θ es la temperatura potencial, T es la temperatura y κ es la constante de Poisson. Con frecuencia se supone que este exponente es 2/7, la proporción entre la constante de los gases y la capacidad calorífica específica a presión constante para un gas ideal diatómico.
    Consulte temperatura potencial virtual, temperatura potencial del agua líquida, temperatura potencial equivalente y temperatura potencial de bulbo húmedo.
  2. En oceanografía, es la temperatura que alcanzaría una muestra de agua si se elevara adiabáticamente a la superficie marina.
    Para los puntos oceánicos más profundos, que se encuentran a poco más de 10 000 m, el enfriamiento adiabático sería inferior a 1.5 °C.
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