CalCOFI 9602JD CTD Data Processing Notes

Summary: The single set of primary sensors: temp, cond, & O2 worked well this 
cruise and no replacements were required. All sensors were serviced & calibrated 
prior to the cruise so were working well. Agreement with the bottle samples was very
high so the r-squares were low on O2s.

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 was not changed so one bottle sample vs fluorometer voltage regression
plot was needed. Linear & polynomial were pretty similar but I prefer using the 2nd-order 
polynominal unless there is no difference.

Corrections:
No Line.sta corrections were need this cruise.

Cast 037 was interrupted during the downcast at 50m so the entire cast was restarted from surface.
Cast 053 was interrupted at 20m then restarted at 30m. The two downcast asc data files were merged
after Seasoft data processing into a single .asc file then merged & compared to bottle IEH data.

Fluorometer sensitivity was not changed during this cruise.

Two extra Tony Rathburn casts (refer to each cast's .hdr files for more info):
No bottle samples were taken on Rathburn casts so plots are cruise-average CTD sensor data

067, 068 - Rathburn coring station CTD 1200m casts (near bottom)


JRW 01/26/2022


