CalCOFI 9403JD CTD Date Processing Notes

Number of station-casts: 66 standard CalCOFI Station

Summary: The single set of primary sensors: temp, cond, & O2 worked well this 
cruise and no replacements were required. All sensors were on their first cruise since
being serviced & calibrated. The O2 sensor downcasts do not agree as well as the upcast
near-surface, typical of the YSI O2 sensor. The cruise-average coefficients from the standard
casts were applied to the extra Goericke cast & plotted.
Agreement with the bottle samples was very good so the r-squares were low on O2s. There
were no issues by the CTD operators this cruise. There were some fluorometer voltages
maxed out at 10v prior to switching sensitivity from 10x to 1x on cast 51. So separate
FlV vs Chla plots were done for Casts 001-050 and 051-066.

Software: DOS Datcnv(Seasoft exe), running in a Windows XP virtual machine on Windows 7.
Additional Seasoft processing done using v7.23.2 SBE Data Processing. Since the no sensors were
changed, only one .xmlcon file was used in the Derive module. 
Fluorometer sensitivity changed on cast 051.


Corrections:
Cast 001: Line.sta correction from 93.26.7 was changed to 93.3 26.7.


JRW 04/01/2022


