P16c
- Nitrate (OSU - Gordon) - Major difficulties were encountered with nitrate and phosphate measurements on stations 226 to 244. Nitrate on TUNES 3 is systematically 1-2 µmoles/L higher than on TUNES, apparently due to different calibration procedures.
- Phosphate (OSU - Gordon) - Major difficulties were encountered with nitrate and phosphate measurements on stations 226 to 244. Nitrate on TUNES 3 is systematically 1-2 µmoles/L higher than on TUNES, apparently due to different calibration procedures.
- Silicate (OSU - Gordon)
- Oxygen
- TCO2 (C.Goyet, WHOI) - No adjustments recommended.
- Crossovers:
| Crossing # |
old # |
Latitude |
Longitude |
Cruise 1 |
Cruise 1 Sta |
Cruise 2 |
Cruise 2 Sta |
Delta |
Stdev |
| 53a |
52 |
17° S |
150° W |
P16C |
222 |
P16S17S |
220 |
-1.1 |
1.5 |
| 53b |
22 |
17° S |
150° W |
P16C |
222 |
P31 |
2,5 |
0.6 |
0.8 |
| 53c |
20 |
17° S |
150° W |
P16C |
222 |
P21 |
157,160 |
-1.4 |
1.4 |
| MEAN |
-0.6 |
1.1 |
- Precision of Duplicate Measurements - No Information
- CRM Results - CRMs used as primary standard.
- Keeling Replicates- Mean difference for 66 samples was -2.08 ± 2.41.
- Multiparameter Analysis (details) - Mean Difference (estimated - measured) = -2.5 ± 2.8
- Alkalinity(C.Goyet, WHOI) - No adjustments recommended.
- Crossovers:
| Crossing # |
old # |
Latitude |
Longitude |
Cruise 1 |
Cruise 1 Sta |
Cruise 2 |
Cruise 2 Sta |
TA Delta Stdev |
| 53a |
52 |
17° S |
150° W |
P16C |
222 |
P16S17S |
220 |
-0.6 ± 3.3 |
| 53b |
22 |
17° S |
150° W |
P16C |
222 |
P31 |
2,5 |
-3.5 ± 0.9 |
| 53c |
20 |
17° S |
150° W |
P16C |
222 |
P21 |
157,160 |
-0.4 ± 2.2 |
| AVERAGE
| -1.5 ± 1.7 |
- Precision of Duplicate Measurements - During the cruise eleven pairs of duplicate samples were collected, i.e. two sample bottles were filled with water from the same Niskin bottle. The bottle pairs were titrated together, one bottle on the right side of the titrator and the other on the left. The sample standard deviation calculated from the pair data, assuming the left and right sides were not systematically different, was 1.11 µmol/kg.
- Multiparameter Analysis (details) - Mean Difference (estimated - measured) = -0.2 ± 4.3
- fCO2 (Not Measured)
- pH(Not Measured)
|