Table 3. Summary of the comparison results for dissolved inorganic carbon (DIC)
for each of the 41 crossover comparisons during the Global CO2 Survey in the Pacific
Location
number/
Crossover
comparison		 Nominal
position
 Cruise name/
WOCE line		 Salinity
between
cruises		 SD
Salinity
between
cruises		 O2
between
cruises
(µmol/kg)		 SD O2
between
cruises		 DIC
(uncorrected)
between
cruises
(µmol/kg)		 DIC
(CRM corr.)
between
cruises
(µmol/kg)		 SD DIC
between
cruises		 ± SD
CRM
SIO-cruise
(µmol/kg)
Long. Lat. Cruise 1 Cruise 2 Cruise 1-2 Cruise 1-2 Cruise 1-2 Cruise 1-2 Cruise 1 Cruise 2
1 / 1 170°E 66°S P14Sa S4 0.003 0.002 -1.0 0.2 -1.5 -0.7 0.8 -1.1±0.9 -0.9±1.8
2 / 2 178°W 32°S P6a CGC90 0.007 0.011 NDb NDb 0.9 -0.5 4 0.6±1.9 3.0±2.5
3 / 3 175°W 32°S P6a CGC90 0.001 0.002 NDb NDb 3.1 0.7 4.7 0.6±1.9 3.0±2.5
4 / 4 170°W 67°S P15Sa S4 0.005 0.002 -1.6 0.2 3.8 3.6 0.8 -1.1±0.9 -0.9±1.8
5 / 5 170°W 32°S P15Sa P6 0.000 0.001 -0.5 0.1 -0.3 -0.5 0.7 -1.1±0.9 0.6±1.9
6 / 6 170°W 17°S P15Sa P21 -0.007 0.001 -6 NDb -1.5 -1.3 1.1 -1.1±0.9 0.9±1.1
7 / 7 170°W 10°S P15Sa CGC90 -0.003 0.001 NDb NDb 4.2 -2.1c 4.9 -1.1±0.9 3.0±2.5
7 / 8 170°W 10°S P15Sa EQS92 0.002 0.003 -3.2 1.3 1.5 -1.6 2.5 -1.1±0.9 -0.8±1.2
7 / 9 170°W 10°S P15Sa P15N 0.001 0.001 -3.0 0.2 2.1 1.1c 0.9 -1.1±0.9 -0.1±2.7
7 / 10 170°W 10°S P15Sa P31 0.000 0.002 0.0 2.6 -0.8 -0.7 3.2 -1.1±0.9 -0.9±2.7
8 / 11 170°W 5°S P15Sa P15N 0.001 0.001 -3.3 0.8 7.9 6.9 1.9 -1.1±0.9 -0.1±2.7
8 / 12 170°W 5°S P15Sa CGC90 -0.002 0.002 NDb NDb 6.1 4.2 2.3 -1.1±0.9 3.0±2.5
8 / 13 170°W 5°S P15Sa EQS92 -0.002 0.002 2.3 5.2 4.7 -2.7 2.8 -1.1±0.9 -0.8±1.2
9 / 14 170°W 0° P15Sa P15N -0.001 0.001 -1.3 0.9 1.9 0.9 1.1 -1.1±0.9 -0.1±2.7
9 / 15 170°W 0° P15Sa CGC90 -0.001 0.000 NDb NDb 2.4 1.3 2.4 -1.1±0.9 3.0±2.5
9 / 16 170°W 0° P15Sa EQS92 0.002 0.001 NDb NDb 0.6 0.3 0.4 -1.1±0.9 -0.8±1.2
10 / 17 152°W 53°N CGC91 P17 0.000 0.000 NDb NDb -15.1 -12.1d 1.2 3.0±2.5 N/Ad
11 / 18 150°W 37°S P16 P16 -0.001 0.002 1.5 2.5 0.1 0.1 1.6 1.3±1.5 1.3±1.5
12 / 19 150°W 32°S P6 P16 0.000 0.001 1.8 0.3 0.4 -1.9 0.4 0.6±1 1.4±2
13 / 20 150°W 17°S P16 P21 -0.001 0.000 0.1 0.2 NDb -3.2c 1 ±2.0c 0.9±1.1
13 / 21 150°W 17°S P21 P31 0.000 0.000 0.3 0.4 3.1 3.1 0.8 0.9±1.1 -0.9±2.7
13 / 22 150°W 17°S P31 P16 0.001 0.001 0.4 0.3 NDb 0.1 0.6 -0.9±2.7 0.9±1.1
14 / 23 135°W 53°S P17 P17 -0.001 0.004 2.3 0.7 -4.5 -4.6 2.9 1.3±1.5 1.4±2.1
15 / 24 135°W 33°S P6 P17 -0.001 0.001 0.0 1.2 -3.5 -1.2 0.5 0.6±1.9 1.4±2.1
16 / 25 135°W 17°S P17 P21 0.000 0.000 1.2 1.1 3 -0.7 2.9 1.4±2.1 0.9±1.1
17 / 26 135°W 5°S P17 P17 0.000 0.001 -0.2 2.1 0.9 -0.5 2.9 1.3±1.5 N/Ad
18 / 27 135°W 35°N P17 P17 -0.003 0.001 3.4 0.9 NDb -0.8 8.0 N/Ad N/Ad
19 / 28 135°W 40°N CGC91 P17 -0.007 0.019 11.5 11.9 -1.7 1.3 2.1 3.0±2.5 N/Ad
20 / 29 126°W 67°S S4 P17 0.011 0.019 -6.1 7.1 2.1 -0.4 1.9 -0.9±1.8 1.4±2.1
21 / 30 110°W 0° P18 EQS92 -0.012 0.012 0.6 6.0 0 -1.5e 3.7 -1.3±1.4 -0.8±1.2
21 / 31 110°W 0° P18 EQF92 0.018 0.022 -3.2 1.6 -1.4e -1.3e 2.3 -1.3±1.4 -0.9±1.2
22 / 32 110°W 5°N P18 EQS92 -0.006 0.004 -5.1e 1.5 1.8 -0.5 6.3 -1.3±1.4 -0.8±1.2
22 / 33 110°W 5°N P18 EQF92 -0.001 0.004 3.7 6.6 -5.4 -6.3 7.2 -1.3±1.4 -0.9±1.2
23 / 34 103°W 67°S P18 S4 0.002 0.002 -5.1 3.9 -0.4f 1.4f 1.0 -1.3±1.4 -0.9±1.8
24 / 35 103°W 32°S P18 P6 0.001 0.002 0.6 1.5 -0.1 0.0 1.3 -1.3±1.4 0.6±1.9
25 / 36 103°W 17°S P18 P21 0.001 0.002 -1.4 0.6 1.9g 0.5 1.2 -1.3±1.4 0.1±2.7
26 / 37 88°W 67°S S4 P19 -0.005 0.001 3.5 0.2 0.2 -1.4e 0.6 -0.9±1.8 -0.2±1.9
27 / 38 88°W 32°S P19 P6 0.003 0.004 -2.5 3.0 0.2 0.9 1.3 -0.2±1.9 0.6±1.9
28 / 39 86°W 55°S P19 P19 -0.001 0.001 0.4 0.2 0.9 -0.7 0.5 -0.2±1.9 1.4±2.1
29 / 40 86°W 17°S P19 P21 0.000 0.001 0.3 0.9 -1.6 -2.7 0.3 -0.2±1.9 0.9±1.1
30 / 41 86°W 13°S P19 EQF92 0.012 0.008 0.1 3.8 -0.2 -0.4 4.8 -0.2±1.9 -0.9±1.2
Mean of the absolute value of the difference
SD of the absolute value of the difference		 0.003
0.004		 2.3
2.4		 2.4
2.8		 1.9
2.3
aPreliminary data.
bND = no data.
cCRMs used as primary standard.
dCRMs not available.
eLinear regression applied.
fAverage of two separate fits.
g4th order polynomial.


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