NDP

*air.dat files

These 10 data files contain the underway marine air xCO₂ measurements and sea surface hydrographic data collected during the WOCE Indian Ocean survey cruises. All files have the same ASCII format and can be read by using the following FORTRAN 77 code [contained in xco2airdat.for (File 2)]:

 
                 INTEGER  flag
                 REAL jday, atmpre, airxco2, lat, lon, temp, sal
                 CHARACTER sect*11, date*8, time*8

                 read (1, 10, end=999) sect, date, time, jday, atmpre, airxco2,
              1 flag, lat, lon, temp, sal

           10   format (1X, A11, 2X, A8, 2X, A8, 2X, F7.3, 2X, F7.5, 3X, F7.3,  
             1   5X, I1, 2X, F8.4, 1X, F8.4, 2X, F7.4, 2X, F7.4)

Stated in tabular form, the contents include the following

Variable	Variable type	Variable width	Starting column	Ending column
sect	Character	11	2	12
date	Character	8	15	22
time	Character	8	25	32
jday	Numeric	7	35	41
atmpre	Numeric	7	44	50
airxco2	Numeric	7	54	60
flag	Numeric	1	66	66
lat	Numeric	8	69	76
lon	Numeric	8	78	85
temp	Numeric	7	88	94
sal	Numeric	7	97	103

The variables are defined as follows:

sect is the WOCE section number;

date is the sampling date (month/day/year);

time is the sampling time (GMT);

jday is the julian day of the year relative to 1995 with time of the day represented as a fractional day (i.e., noon on 1/1/95=1.5);

atmpre is the atmospheric pressure (atm);

airxco2 is the observed mole fraction of CO₂ in air [ppm (dry air)];

flag is the airxco2 data quality flag:

2 = acceptable measurement of airxco2;

3 = questionable measurement of airxco2;

lat is the latitude of the sampling location (decimal degrees; negative values indicate the Southern Hemisphere);

lon is the longitude of the sampling location (decimal degrees; negative values indicate the Western Hemisphere);

temp is the sea-surface temperature (°C);

sal is the sea-surface salinity [on the Practical Salinity Scale (PSS)].


sect	is the WOCE section number;
date	is the sampling date (month/day/year);
time	is the sampling time (GMT);
jday	is the julian day of the year relative to 1995 with time of the day represented as a fractional day (i.e., noon on 1/1/95=1.5);
atmpre	is the atmospheric pressure (atm);
airxco2	is the observed mole fraction of CO₂ in air [ppm (dry air)];
flag	is the airxco2 data quality flag:
	2 = acceptable measurement of airxco2;
	3 = questionable measurement of airxco2;
lat	is the latitude of the sampling location (decimal degrees; negative values indicate the Southern Hemisphere);
lon	is the longitude of the sampling location (decimal degrees; negative values indicate the Western Hemisphere);
temp	is the sea-surface temperature (°C);
sal	is the sea-surface salinity [on the Practical Salinity Scale (PSS)].

akozyr 11/30/97