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
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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
>> 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.