8.5 p16ap17a.dat (File 7), p17ep19s.dat (File 8), and p19c.dat (File 9)

These files provide hydrographic, carbon dioxide, and chemical data for the all stations occupied during the R/V Knorr expeditions along WOCE Sections P16A/P17A, P17E/P19S, and P19C. Each record contains a station number, cast number, sample number, bottle number, CTD pressure, CTD temperature, CTD salinity, CTD oxygen, potential temperature, bottle salinity, oxygen, silicate, nitrate, nitrite, phosphate, CFC-11, CFC-12, TCO2, pCO2, pCO2 temperature, and data-quality flags. The files are sorted by station number and pressure and can be read by using the following FORTRAN 77 code [contained in data.for (File 3)]:

       CHARACTER qualt*13
       INTEGER sta, cast, samp, bot
       REAL pre, ctdtmp, ctdsal, ctdoxy, theta, sal, oxy, silca
       REAL nitrat, nitrit, phspht, cfc11, cfc12, tcarb, pco2
       REAL pco2tmp

      read (1, 10, end=999) sta, cast, samp, bot, pre, ctdtmp,
     1 ctdsal, ctdoxy, theta, sal, oxy, silca, nitrat, nitrit,
     2 phspht, cfc11, cfc12, tcarb, pco2, pco2tmp, qualt

 10    format (5X, I3, 7X, I1, 6X, I2, 6X, I2, 1X, F7.1, 1X, F7.4,
     1 1X, F7.4, 1X, F7.1, 1X, F7.4, 1X, F9.4, 1X, F7.1, 1X, F7.2,
     2 1X, F7.2, 1X, F7.2, 1X, F7.2, 1X, F8.3, 1X, F8.3, 1X, F7.1,
     3 1X, F7.2, 1X, F7.2, 1X, A13)

Stated in tabular form, the contents include the following:

Variable Variable type Variable width Starting column Ending column
sta Numeric 3 6 8
cast Numeric 1 16 16
samp Numeric 2 23 24
bot Numeric 2 31 32
pre Numeric 7 34 40
ctdtmp Numeric 7 42 48
ctdsal Numeric 7 50 56
ctdoxy Numeric 7 58 64
theta Numeric 7 66 72
sal Numeric 9 74 82
oxy Numeric 7 84 90
silca Numeric 7 92 98
nitrat Numeric 7 100 106
nitrit Numeric 7 108 114
phspht Numeric 7 116 122
cfc11 Numeric 8 124 131
cfc12 Numeric 8 133 140
tcarb Numeric 7 142 148
pco2 Numeric 7 150 156
pco2tmp Numeric 7 158 164
qualt Character 14 166 178

The variables defined as follows:

sta  =  the station number;
cast  =  the cast number;
samp  =  the sample number;
bota  =  the bottle number;
pre  =  the CTD pressure (in dbar);
ctdtmp  =  the CTD temperature (in °C);
ctdsala  =  the CTD salinity [on the Practical Salinity Scale (PSS)];
ctdoxya  =  the CTD oxygen concentration (in µmol/kg);
theta  =  the potential temperature (in °C);
sala  =  the bottle salinity (on the PSS);
oxya  =  the oxygen concentration (in µmol/kg);
silcaa  =  the silicate concentration (in µmol/kg);
nitrata  =  the nitrate concentration (in µmol/kg);
nitrita  =  the nitrite concentration (in µmol/kg);
phsphta  =  the phosphate concentration (in µmol/kg);
cfc11a  =  the trichlorofluoromethane-11 concentration (CCl3F) (in pmol/kg);
cfc12a  =  the dichlorodifluoromethane-12 concentration (CCl2F2) (in pmol/kg);
tcarba  =  the total carbon dioxide concentration (in µmol/kg);
pco2a  =  the partial pressure of CO2 (in µatm and measured at pco2tmp);
pco2tmp  =  the temperature of equilibration of the pCO2 samples in the equilibrator (in °C);
qualt  =  a 13-digit character variable that contains data-quality flag codes for parameters marked with an asterisk (*) in the output file.

aVariables that are underlined with asterisks in the data files to indicate they have a data-quality flag. Data-quality flags are defined as follows:

1  =  sample for this measurement was drawn from water bottle, but results of analyses were not received;
2  =  acceptable measurement;
3  =  questionable measurement;
4  =  bad measurement;
5  =  not reported;
6  =  mean of replicate measurements;
7  =  manual chromatographic peak measurement;
8  =  irregular digital chromatographic peak integration;
9  =  sample was not drawn for this measurement from this bottle.

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