ctdcal.fit_ctd.cell_therm_mass_corr¶

ctdcal.fit_ctd.cell_therm_mass_corr(temp, cond, sample_int=0.041666666666666664, alpha=0.03, beta=0.14285714285714285)[source]¶

Correct conductivity signal for effects of cell thermal mass.

Parameters

temp (array-like) – CTD temperature [degC]
cond (array-like) – CTD conductivity [mS/cm]
sample_int (float, optional) – CTD sample interval [seconds]
alpha (float, optional) – Thermal anomaly amplitude
beta (float, optional) – Thermal anomaly time constant

Returns

cond_corr – Corrected CTD conductivity [mS/cm]

Return type

array-like

Notes

See Sea-Bird Seasoft V2 manual (Section 6, page 93) for equation information. Default alpha/beta values taken from Seasoft manual (page 92). c.f. “Thermal Inertia of Conductivity Cells: Theory” (Lueck 1990) for more info https://doi.org/10.1175/1520-0426(1990)007<0741:TIOCCT>2.0.CO;2