a08.dat (File 5)
This file provides hydrographic, carbon dioxide, and chemical data for all stations occupied during the R/V Meteor cruise along WOCE Section A8. Each line consists of a station number, cast number, sample number, bottle number, CTD pressure, CTD temperature, CTD salinity, potential temperature, bottle salinity, bottle oxygen, silicate, nitrate-plus-nitrite, CFC-11, CFC-12, TCO2, fCO2 @ equilibrator temperature, equilibrator temperature, fCO2 @ 20°C, calculated pCO2 @ 20°C, and data-quality flags. The file is sorted by station number and pressure and can be read by using the following FORTRAN 90 code [contained in a08dat.for (File 3)]:
CHARACTER qualt*11
INTEGER sta, cast, samp, bot
REAL pre, ctdtmp, ctdsal, theta, sal, oxy, silca, nitrat
REAL cfc11, cfc12, tcarb, fCOeq, eqtmp, fCO, pCO
read (1, 10, end=999) sta, cast, samp, bot, pre, ctdtmp,
1 ctdsal, theta, sal, oxy, silca, nitrat, cfc11, cfc12,
2 tcarb, fCO2eq, eqtmp, fCO2, pCO2, qualt
10 format (5X, I3, 5X, I3, 4X, I4, 5X, I3, 1X, F7.1, 1X, F7.4,
1 1X, F7.4, 1X, F7.4, 1X, F9.4, 1X, F7.1, 1X, F7.2, 1X, F7.2,
2 1X, F8.3, 1X, F8.3,1X, F7.2, 1X, F7.2, 1X, F7.1, 1X, F7.2,
3 1X, F7.2, 1X, A11)
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 | 3 | 14 | 16 |
| samp | Numeric | 4 | 21 | 24 |
| bot | Numeric | 3 | 30 | 32 |
| pre | Numeric | 7 | 34 | 40 |
| ctdtmp | Numeric | 7 | 42 | 48 |
| ctdsal | Numeric | 7 | 50 | 56 |
| theta | Numeric | 7 | 58 | 64 |
| sal | Numeric | 9 | 66 | 74 |
| oxy | Numeric | 7 | 76 | 82 |
| silca | Numeric | 7 | 84 | 90 |
| nitrat | Numeric | 7 | 92 | 98 |
| cfc11 | Numeric | 8 | 100 | 107 |
| cfc12 | Numeric | 8 | 109 | 116 |
| tcarb | Numeric | 7 | 118 | 124 |
| fco2eq | Numeric | 7 | 126 | 132 |
| eqtmp | Numeric | 7 | 134 | 140 |
| fco2 | Numeric | 7 | 142 | 148 |
| pco2 | Numeric | 7 | 150 | 156 |
| qualt | Character | 9 | 158 | 168 |
The variables defined as follows:
| sta | - | is the station number; |
| cast | - | is the cast number; |
| samp | - | is the sample number; |
| bota | - | is the bottle number; |
| pre | - | is the CTD pressure (in dbar); |
| ctdtmp | - | is the CTD temperature (in °C); |
| ctdsala | - | is the CTD salinity [on the Practical Salinity Scale (PSS)]; |
| theta | - | is the potential temperature (in °C); |
| sala | - | is the bottle salinity (on the PSS); |
| oxya | - | is the oxygen concentration (in µmol/kg); |
| silcaa | - | is the silicate concentration (in µmol/kg); |
| nitrata | - | is the nitrate plus nitrite concentration (in µmol/kg); |
| cfc11a | - | is the trichlorofluoromethane-11 concentration (CCl3F) (in pmol/kg); |
| cfc12a | - | is the dichlorodifluoromethane-12 concentration (CCl2F2) (in pmol/kg); |
| tcarba | - | is the total carbon dioxide concentration (in µmol/kg); |
| fco2eqa | - | is the fugacity of CO2 @ equilibrator temperature (ppm); |
| eqtmp | - | is the temperature of equilibration of the fCO2 samples in equilibrator (°C); |
| fco2 | - | is the fugacity of CO2 @ 20°C (ppm); |
| pCO2a | - | is the calculated partial pressure of CO2 @ 20°C (µatm); |
| qualt | - | is a 9-digit character variable that contains data-quality flag codes for parameters underlined with asterisks (*******) in the file header. |
aVariables that are underlined with asterisks in the data file's header 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 analysis was 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 not drawn for this measurement from this bottle.
