CalCOFI 0010NH CTD Data Processing Notes

Reprocessing of Oct 2000 CTD data was done in 2021 by JRW. Reprocessing was
necessary to allow these data to match the CTD database column format. 2021 
data processing methodology was also applied although using IEH-formatted 
bottle data with Sigma-theta & O2Sat added using Addstho2.exe (Dos program
developed for this purpose & applied to IEH file "wild" columns).

General scrutiny of the CTD vs bottle data plots show the data were pretty 
"clean". Spikes were minimal and flagged. There were some operator errors
that lost CTD data but bottle samples were collected. So on casts 001 and
007, please use the bottle data available.
Cast 001 had pressure sensor problems that were solved by cast 002. Being
a shallow 70m station, the CTD profiling was not done. Refer to console ops
notes (which I do not have with me).
Cast 007 looks like deck pressure data so the operator probably accidentally
overwrote the data file. This happens when you forget to log the on-deck pressure
at the end if the cast (for QC) and restart data acquisition. The CTD backup 
program (<Ctrl-Alt B) was written to reduce this from happening.

GPS information in the hdr files needed correction on casts: 002, 018, 029, 035, 058.
Please note that at this time CalCOFI cast number format was two digits. So the 
leading zero in the filenames were added by me during archiving - 02 > 002, 03 > 003...

There were no sensor changes during the cruise and the voltage/con files are correct.
One mismatch was cast 001 had the surface par on V15 so cast 002 .con file was used.
Unfortunately, even though two casts were done on station 001 (93.3 26.7), both had
the pressure sensor issue. The mrk file appears to have good pr data so physical data 
could be matched to bottle data for IEH tabulation. 

Casts that were datacoded:
Cast 027U - S2 spike 39-49m "9"
Cast 028 - had pressure spikes that made the cast depth spike to 1900m, it was a 300m
   cast to ~308m. Data files were manually edited to correct this.
Cast 028D - O2 spike 294-299m "9"; S2 spike 302m "9"
Cast 028U - S2 spike 301m "9"
  