Oxygen concentration determinations, upper and lower end, were made prior to the cruise by the LUMCON CTD technician and entered into the SeaSoft configuration file. Winkler oxygen titrations were conducted during the cruise. A regression equation developed from Winkler titrations, demonstrated that a correction of the SeaBird oxygen data could not be determined from the range of Winkler values. Oxygen data were omitted from the top of casts if concentrations indicated that the CTD oxygen probe was not equilibrated due to inadequate "soak" time or too fast a lowering speed. Oxygen data were removed from one or more depths at 44 of the 69 the stations sampled.
Data reductions from the SeaBird were generated by Ben Cole and quality controlled by Nancy Rabalais.
Sea-Tech Fluorometer values were negative at one or more depth sampled at 39 of 69 CTD stations. Negative values imply bad connection, calibration or configuration. Fluorometer voltage data should be considered suspect.
S791Nutrient: Nutrient analyses were conducted by Tom Oswald under the supervision of R. E. Turner
S791Pigment: The Turner Designs model 10 fluorometer was calibrated for chlorophyll a against a chemical supply house chlorophyll a standard measured on a spectrophotometer yearly (or more frequently if needed). During the cruise, the Fluorometer was blanked and calibrated daily in accordance with Turner Designs recommended procedures. Chlorophyll concentrations were supervised and quality controlled by Nancy Rabalais.
S791Stns Station Depth (JRC fathometer) values are less than maximum SeaBird CTD pressure sensor depth values at stations B4, B6 and F7.
S791SuspSed: Suspended sediment concentrations were supervised and quality controlled by Nancy Rabalais
N. Rabalais performed an additional procedure in quality-control/quality-assurance by evaluating relationships between the data in S791Hydro, S791Nutrient, S791Pigment and S791Stns.