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POTEM

POTEM

Name


      POTEM.PRO

Purpose


      Compute the potential temperature of a parcel of seawater at a
      reference pressure using the Bryden 1973 polynomial for
      adiabatic lapse rate and Runge=Kutta 4th order integration algorithm.

Category


      Physics

Calling Sequence


      theta = Potem(t, s, p, pr)

Inputs


      p pressure dBars (m)
      t temperature deg C
      s salinity PSU
      pr reference pressure dBars (m)

Outputs


      theta potential temp deg C

Example


      See table of reference (check) values below.
  THETA = POT_T(S,T,P,PR) computes potential temperature at pr using
  Bryden 1973 polynomial for adiabatic lapse rate
  and Runge=Kutta 4 th order integration algorithm.
      Ref: Bryden,H.1973, DeepSea Research,20etc.
  Units:
      p pressure dBars (m)
      t temperature deg C
      s salinity PSU
      pr reference pressure dBars (m)
      theta potential temp deg C
  check values: s (psu) t (deg C) p (dB) pr (dB) theta (deg C)
                34.75 1.0 4500 0 0.640
                34.75 1.0 4500 4000 0.944
                34.95 2.5 3500 0 2.207
                34.95 2.5 3500 4000 2.558

Modification History


  Written by: Edward C. Wiebe, 1999-03-31. (Converted to an
  IDL function from a Matlab function)



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