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OCADSAccess DataDiscrete / Bottle DataGLODAPCrossover Summary for Nutrient Measurements in the Indian Ocean

Crossover Summary for Nutrient Measurements in the Indian Ocean

Crossover no. Stations:a cruise 1, cruise 2 Cruise 1 - Cruise 2 ΔOxygen (µmol/kg) ΔNitrate (µmol/kg) ΔSilicate (µmol/kg) ΔPhosphate (µmol/kg)
1 928:929, 781:782 I1-I7N -0.9 ± 2.2 0.5 ± 0.1 2.7 ± 1.1 -0.04 ± 0.01
2 987:990, 267:269 I1-I9N 2.1 ± 0.9 0.17 ± 0.05 -0.6 ± 1.0 -0.022 ± 0.005
3 996:998b, 233,:235 I1-I9N 2.0 ± 0.5 -0.25 ± 0.03 1.6 ± 0.6 -0.0007 ± 0.0048
4 1205:1206, 729,:730 I2-I7N -1.4 ± 0.4   -0.2 ± 0.6  
5 1137:1139, 321:323 I2-I8NI5E -2.0 ± 0.8 -0.001 ± 0.078 0.5 ± 0.8 -0.006 ± 0.006
6 1094:1095, 191:193 I2-I9N 0.3 ± 0.3 -0.27 ± 0.05 0.2 ± 0.4 -0.042 ± 0.006
7 1078, 1075 I2-I10 0.9 ± 2.1 -0.15 ± 0.03 -1.6 ± 0.6 -0.011 ± 0.006
8 704:706, 547:549 I5WI4-I3 -0.2 ± 0.2 0.03 ± 0.04   0.011 ± 0.006
9 498:499, 346:347 I3-I8NI5E -0.8 ± 0.8 -0.26 ± 0.03 1.2 ± 0.6 -0.002 ± 0.010
10 471:473, 168:170 I3-I9N -0.5 ± 0.6 -0.24 ± 0.06 -1.1 ± 0.3 -0.014 ± 0.002
11 1038:1039, 452:453 I10-I3 -0.6 ± 0.4 0.11 ± 0.02 0.2 ± 0.1 0.001 ± 0.004
12 405:407, 10:12 I8NI5E-I8SI9S 0.5 ± 0.3 -0.79 ± 0.09 -2.6 ± 0.5 -0.041 ± 0.003
13 861, 807:808 I1-I7N -0.2 ± 0.4 -0.48 ± 0.04 3.1 ± 0.4 -0.154 ± 0.006
14 709, 707 I7N-I5WI4 0.4 ± 0.3 -0.30 ± 0.03 -1.5 ± 0.2 -0.027 ± 0.003
15 967:969, 286:287 I1-I8NI5E 2.7 ± 0.4 -0.08 ± 0.03 -0.7 ± 0.4 -0.034 ± 0.009
16 62:64c, 75:77 S4I-I8SI9S 1.7 ± 0.7 -0.79 ± 0.05 -1.2 ± 2.2 -0.082 ± 0.004
17 104:106, 91:93 S4I-I8SI9S 1.0 ± 0.1   0.01 ± 1.43d -0.018 ± 0.006d
18 12:14, 14 S4I-I6S 1.0 ± 1.3 0.52 ± 0.04 -9.2 ± 1.5 -0.236 ± 0.009
19 30, 90 I6S-INDIGO-IIIe -4.1 ± 1.8 1.0 ± 0.1 -2.7 ± 2.2 -0.006 ± 0.017
20 34, 36, 90, 91, 93 I6S-INDIGO-III 0.1 ± 0.9 0.8 ± 0.2f -4.2 ± 2.1 -0.02 ± 0.02f
21 24, 89 I6S-INDIGO-IIIe 1.3 ± 0.4   -2.1 ± 1.7 -0.3 ± 0.01
22 18, 20, 88 I6S-INDIGO-III 1.0 ± 0.3 2.2 ± 0.3 -4.4 ± 0.2 0.006 ± .009
23 12, 13, 87 I6S-INDIGO-III -2.5 ± 1.7 0.7 ± 0.5g 6.3 ± 1.2 -0.01 ± 0.03g
24 26, 86 S4I-INDIGO-III 3.9 ± 0.6 1.5 ± 0.3 -6.7 ± 1.9  
25 31:32, 85 S4I-INDIGO-IIIe 3.9 ± 2.0   -8.2 ± 1.2 -0.10 ± 0.03
26 46, 84 S4I-INDIGO-IIIe -3.6 ± 1.1 0.8 ± 0.2 9.5 ± 3.8 -0.087 ± 0.003
27 58:59, 78 S4I-INDIGO-IIIe 4.7 ± 1.6 -0.02 ± 0.13 -2.7 ± 1.9 -0.082 ± 0.006
28 85, 79 S4I-INDIGO   1.5 ± 0.1 4.3 ± 2.9 -0.13 ± 0.01
29 INDIGO-WOCE        
30 720, 32 I7N-INDIGO-II -1.0 ± 0.3 -0.3 ± 0.1 -0.8 ± 0.3 -0.0009 ± 0.0073
31 INDIGO-WOCE        
32 760, 44 I7N-INDIGO-II -1.5 ± 0.4 0.48 ± 0.08 -0.02 ± 0.31 -0.08 ± 0.02
33 692:694, 2 I5WI4-INDIGO-I -4.6 ± 1.3      
34 11, 103 INDIGO III-INDIGO I -3.8 ± 0.2 0.09 ± 0.04 1.8 ± 0.9 0.116 ± 0.006
35 110, 19 INDIGO III-INDIGO I 1.8 ± 2.8      
36 616:653, 3:5, 13:15, 20:27 I5WI4-C.Darwin, 29 -3.6 ± 1.2 -0.3 ± 0.2 2.6 ± 1.3 -0.06 ± 0.02
37 379:380, 67:68 I8NI5E-C.Darwin, 29 -1.9 ± 0.9 -0.02 ± 0.08 0.2 ± 0.6 -0.008 ± 0.011
38 377:379, 68:69 I8NI5E-C.Darwin, 29 -2.3 ± 1.3 -0.6 ± 0.1 1.5 ± 1.7 -0.016 ± 0.003

aColons indicate an inclusive range of stations
bStation 996 silicate anomalously high relative to stations 994:998
cShallow area, no deep data
dSignificant scatter in I8SI9S data, some presumably due to real gradient
eSignificant differences in Theta vs Salinity plot; probably different water
fSignificant differences in INDIGO stations
gInsufficient data on I6S stations

Last modified: 2021-03-17T18:30:27Z