All the archived parameters listed in 3.6 have default minimum and maximum, and if determined, adjusted minimum and maximum values in the sub-region defined in the previous table. The updated values can been accessed by clicking each parameter code on:
(*) DOX1, DOX2 will be converted in approximate DOXY to perform QC
NTAW, NTIW, PHOW, SLCW, SSAL to approximate NTRA, NTRI, PHOS, SLCA, PSAL
Total nitrogen and HYDROGEN SULPHIDE (H2S) have still no known statistical values. (**) For Chlorophyll-a, if one measurement only, use CPLH code and use in addition CPH1 if 2 measurements of chlorophyll-a with different methods exist in the same data file.
Note: 3 codes have been currently used in the past with same unit 0.01mg/m3:
1) CPHL: chlorophyll-a with no more information;
2) chlorophyll-a SU: (SCOR UNESCO) with sometimes comments like "fluorescence and calibration" chlorophyll-a SA: with comment "active after acidification"
They are not comparable and the QC will be limited.
Additional parameters can be recorded with the core parameters profiles, especially optical values with CTD. In general they do not need to be extracted, but will not be QC unless broad range statiscs are well established.