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corr_o2conc_garcia - O2 concentration compensated for salinity and pressure

When an instrument is connected to an RBRcoda³ T.ODO, the latter transfers both the foil temperature and the dissolved oxygen concentration (not compensated for salinity). The instrument then calculates the oxygen concentration compensated for salinity and pressure:

where 

  • O2corr is the corrected O2 concentration, compensated for salinity and pressure.

  • O2unc is the uncompensated O2 concentration returned by the RBRcoda³ T.ODO.

  • C0 and C1 are corrections and scaling factors for the uncompensated O2 concentration.

  • C2 is a correction factor for pressure.

  • S is the salinity in PSU.

  • P is sea pressure in dbar.

and

where T is the water temperature (in °C), and

which correspond to Garcia and Gordon coefficients.

The corresponding logger coefficients are:

  • c0 is C0

  • c1 is C1

  • c2 is C2

  • n0 is the label of the water temperature channel

  • n1 is the label of the salinity channel

  • n2 is the label of the pressure channel

  • n3 is the label of the atmospheric pressure channel (set to value to use parameters atmosphere)
    Examples

TEXT
>> calibration oxygenconcentration_00
<< calibration oxygenconcentration_00 datetime=20171201000000 offset=0.0000000e+000 slope=1.0000000e+000 c0=0 c1 = 1 c2=3.25e-5 n0=temperature_00 n1=salinity_00 n2=pressure_00 n3=value

Request confirmation of all calibration coefficients.

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