m115.dat (File 5)
This file provides hydrographic, carbon dioxide, and chemical data for the 78 stations occupied during the R/V Meteor Cruise 11/5. Each line consists of a station number, cast number, sample number, bottle number, CTD pressure, CTD temperature, CTD salinity, potential temperature, bottle salinity; concentrations of oxygen, silicate, nitrate, nitrite, phosphate, and total carbon; pCO2; pCO2 temperature; potential density; and data quality flags. The file is sorted by station number and pressure and can be read by using the following FORTRAN 77 code [contained in m115dat.for (File 3)]:
INTEGER stat, cast, samp, bottle
CHARACTER flag*10
REAL ctdprs, ctdtmp, ctdsal, theta, btlsal, oxygen, silica
REAL nitrat, nitrit, phspht, tco2, pco2
REAL pco2temp, sigma0
read (1, 10,end=999) stat, cast, samp, bottle, ctdprs, ctdtmp,
1 ctdsal, theta, btlsal, oxygen, silica, nitrat, nitrit, phspht,
2 tco2, pco2, pco2temp, sigma0, flag
10 format (5X,I3,7X,I1,6X,I2,5X,I3,2X,F6.1,1X,F9.4,1X,F9.4,1X,
1 F9.4,1X,F9.4,2X,F6.1,1X,F7.2,1X,F7.2,1X,F7.2,1X,F7.2,2X,
2 F6.1,2X,F6.1,1X,F7.2,2X,F6.3,1X,A10)
Stated in tabular form, the contents include the following:
| Variable | Variable Type | Variable Width | Starting Column | Ending Column |
|---|---|---|---|---|
| STAT | Numeric | 3 | 6 | 8 |
| CAST | Numeric | 1 | 16 | 16 |
| SAMP | Numeric | 2 | 23 | 24 |
| BOTTLE | Numeric | 4 | 30 | 32 |
| CTDPRS | Numeric | 6 | 36 | 40 |
| CTDTMP | Numeric | 9 | 42 | 50 |
| CTDSAL | Numeric | 9 | 52 | 60 |
| THETA | Numeric | 9 | 62 | 70 |
| BTLSAL | Numeric | 9 | 72 | 80 |
| OXYGEN | Numeric | 6 | 83 | 88 |
| SILICA | Numeric | 7 | 90 | 96 |
| NITRAT | Numeric | 7 | 98 | 104 |
| NITRIT | Numeric | 7 | 106 | 112 |
| PHSPHT | Numeric | 7 | 114 | 120 |
| TCO2 | Numeric | 6 | 123 | 128 |
| PCO2 | Numeric | 6 | 131 | 136 |
| PCO2TEMP | Numeric | 7 | 138 | 144 |
| SIGMA0 | Numeric | 6 | 147 | 152 |
| FLAG | Character | 10 | 154 | 163 |
where
STA - is the station number (values from 102 to 179);
CAST - is the cast number;
SAMP - is the sample number;
BOTTLE* - is the bottle number;
CTDPRS - is the CTD pressure (dbar);
CTDTMP - is the CTD temperature (oC);
CTDSAL* - is the CTD salinity [on the Practical Salinity Scale (PSS)];
THETA - is the potential temperature (oC);
BTLSAL* - is the bottle salinity;
OXYGEN* - is the oxygen concentration (µ mol/kg);
SILICA* - is the silicate concentration (µ mol/kg);
NITRAT* - is the nitrate concentration (µ mol/kg);
NITRIT* - is the nitrite concentration (µ mol/kg);
PHSPHT* - is the phosphate concentration (µ mol/kg);
TCO2* - is the total carbon dioxide concentration (µ mol/kg);
PCO2* - is the partial pressure of CO2(in µ atm and measured at 20oC; water-saturated air);
PCO2TEMP - is the temperature of equilibration of the pCO2 samples in equilibrator (in oC);
SIGMA - is the potential density (in sigma units at 0 dbar);
FLAG - is a 10-digit character variable that contains data quality flag codes for parameters flagged by an asterisk (*).
Quality flag definitions:
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.
