0302JD Data (Re)Processing Notes
Ran all casts, southern & northern lines, through SBE Data Processing suite 
v7.23.2 according to 2020 SIO-CalCOFI protocol. Note this cruise used the 
SIO-CalCOFI 911+ CTD+Rosette for all stations. Dual T & C pumped sensors were
deployed along with a single Seabird Beckman/YSI membrane O2 sensor (not as
responsive as the SBE43 deployed on the next cruise, 0304RR). Several casts had
issues with the O2 sensor particularly at surface and around 200-300m. Data codes
were used to annotate the questionable data outlined below.

After Cast 073, the fluorometer changed from V6 to V4; O2 changed from V4 to V6. 
Same fluorometer but different channel. FlVoltage vs chl-a regression coefficients to 
derive estimated chl from fluorometer voltage were run in two steps. Once for casts 
001-073 with FlV on V6 then 074-100 with FlV on V4. Same was applied to O2s.

Oxygen sensor
Setup Casts 001-073: V0 - Transmissometer; V1: Free; V2: Benthos Altimeter; V3: Remote 
Biospherical PAR; V4: Beckman/YSI O2 Current; V5: Beckman/YSI O2 Temperature; 
V6: Seapoint Fluorometer; V7: Free

On Casts 074-100: the O2 sensor & fluorometer sensors were switched
Setup Casts 074-100: V0 - Transmissometer; V1: Free; V2: Benthos Altimeter; V3: Remote 
Biospherical PAR; V4: Seapoint Fluorometer; V5: free; V6: Beckman/YSI Current;
V7: Beckman/YSI Temperature.

Note: Stations 068, 079, 092, & 093 were non-CTD stations so no CTD casts were performed.
Sometimes trawling &/or 'Pairovet net/CUFES ground-truthing' stations occur on northern lines.

Casts data coded, mainly "8" for questionable, since many bad data were interspersed
with possibly good data.
Casts 001-066, southern lines stations had bottle data to correct sensor measurements.
Cast 042 upcast: primary salt sensor may have been biofouled as most upcast data look
  bad. Secondary salinities look good. Oxygen sensor data also look questionable due
  to the primary sensor tubing being biofouled.
Cast 054 upcast: questionable O2 data from 228-234m
Cast 055 upcast: questionable O2 data from 168-176m
Cast 062 downcast: O2 spike from 277-283m
Cast 064 downcast: O2 spike from 267-274m

Northern Lines (no bottle samples)
Cast 069 upcast: O2 data questionable from 209-310m
Cast 070 upcast: O2 data questionable from 207-299m
Cast 071 downcast: O2 data questionable from 287-303m
Cast 071 upcast: O2 data questionable from 186-300m
Cast 072 upcast: O2 data questionable from 218-292m
Cast 073 upcast: O2 data questionable from 207-290m