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.


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