a10dat.txt (File 6)

This file provides hydrographic, carbon dioxide, and chemical data for the 112 stations occupied during R/V Meteor Cruise 22/5. Each line consists of a station number, cast number, bottle number, CTD pressure, CTD temperature, CTD salinity, potential temperature, bottle salinity, oxygen, silicate, phosphate, nitrate plus nitrite, CFC-11, CFC-12, total CO₂, SOMMA number, total alkalinity, 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 a10dat.for (File 3)]:

            
           CHARACTER qualt*11
           INTEGER sta, cast, bot, pre, som 
           REAL ctdtmp, ctdsal, theta, sal, oxy, silca
           REAL phspht, nitr, cfc11, cfc12, tcarb, talk 
    
           read (1, 10, end=999) sta, cast, bot, pre, ctdtmp,
         1 ctdsal, theta, sal, oxy, silca, phspht, nitr,
         2 cfc11, cfc12, tcarb, som, talk, qualt
    
     10    format (5X, I3, 7X, I1, 5X, I3, 4X, I4, 1X, F7.4,
         1 1X, F7.4, 1X, F7.4, 1X, F9.4, 1X, F7.1, 1X, F7.2,
         2 1X, F7.2, 1X, F7.2, 1X, F8.3, 1X, F8.3, 1X, F7.1,
         3 5X, I2, 1X, F7.1, 2X, A11)
          
 

Variable	Variable type	Variable width	Starting column	Ending column
sta	Numeric	3	6	8
cast	Numeric	1	16	16
bot	Numeric	3	22	24
pre	Numeric	4	29	32
ctdtmp	Numeric	7	34	40
ctdsal	Numeric	7	42	48
theta	Numeric	7	50	56
sal	Numeric	9	58	66
oxy	Numeric	7	68	74
silca	Numeric	7	76	82
phspht	Numeric	7	84	90
nitr	Numeric	7	92	98
cfc11	Numeric	8	100	107
cfc12	Numeric	8	109	116
tcarb	Numeric	7	118	124
som	Numeric	2	130	131
talk	Numeric	7	133	139
qualt	Character	11	142	152

The variables defined as follows:

sta - is the station number;

cast - is the cast number;

bot^a - is the bottle number;

pre - is the CTD pressure (in dbar);

ctdtmp - is the CTD temperature (in °C);

ctdsal^a - is the CTD salinity [on the Practical Salinity Scale (PSS)];

theta - is the potential temperature (in °C);

sal^a - is the bottle salinity (on the PSS);

oxy^a - is the oxygen concentration (in µmol/kg);

silca^a - is the silicate concentration (in µmol/kg);

phspht^a - is the phosphate concentration (in µmol/kg);

nitr^a - is the nitrate plus nitrite concentration (in µmol/kg);

cfc11^a - is the trichlorofluoromethane-11 concentration (CCl₃F) (in pmol/kg);

cfc12^a - is the dichlorodifluoromethane-12 concentration (CCl₂F₂) (in pmol/kg);

tcarb^a - is the total carbon dioxide concentration (in µmol/kg);

som - is the SOMMA number;

talk^a - is the total alkalinity concentration (in µmol/kg);

qualt - is a 11-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.