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Thuróczy, Charles-Edouard; Gerringa, Loes J A; Klunder, Maarten B; Laan, Patrick; Le Guitton, M; de Baar, Hein J W (2011): (Table 2b) Determination of ligand characteristics in unfiltered samples taken during POLARSTERN expedition ARK-XXII/2 - determination of a lower limit using dissolved iron [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.839197, In supplement to: Thuróczy, C-E et al. (2011): Distinct trends in the speciation of iron between the shallow shelf seas and the deep basins of the Arctic Ocean. Journal of Geophysical Research, 116(C10), C10009, https://doi.org/10.1029/2010JC006835

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Coverage:
Median Latitude: 83.820050 * Median Longitude: 78.779400 * South-bound Latitude: 80.994600 * West-bound Longitude: 33.950100 * North-bound Latitude: 87.045200 * East-bound Longitude: 177.544900
Date/Time Start: 2007-08-01T08:24:00 * Date/Time End: 2007-09-10T13:19:00
Minimum DEPTH, water: 5 m * Maximum DEPTH, water: 4251 m
Event(s):
PS70/239-1  * Latitude: 80.994600 * Longitude: 33.996600 * Date/Time: 2007-08-01T08:24:00 * Elevation: -222.0 m * Location: Arctic Ocean * Campaign: ARK-XXII/2 (PS70 SPACE DAMOCLES) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
PS70/255-1  * Latitude: 82.504200 * Longitude: 33.950100 * Date/Time: 2007-08-03T20:22:00 * Elevation: -3104.0 m * Location: Arctic Ocean * Campaign: ARK-XXII/2 (PS70 SPACE DAMOCLES) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
PS70/260-2  * Latitude: 84.489700 * Longitude: 36.138100 * Date/Time: 2007-08-07T09:51:00 * Elevation: -4056.0 m * Location: Arctic Ocean * Campaign: ARK-XXII/2 (PS70 SPACE DAMOCLES) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
Comment:
The standard deviation for Fe concentrations is missing when there were not enough samples to determine the concentration in duplicate or triplicate. Modelled values missing when the model could not fit the data using the lower limit.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Date/Time of eventDate/Time
3 Latitude of eventLatitude
4 Longitude of eventLongitude
5 Area/localityAreaThuróczy, Charles-Edouard
6 DEPTH, waterDepth watermGeocode
7 Iron, dissolvedFe dissnmol/lThuróczy, Charles-EdouardDFe
8 Iron, dissolved, standard deviationFe diss std dev±Thuróczy, Charles-Edouard
9 Iron-binding ligand, dissolvedFeL dissnmol/lThuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)Ligand [Lt ]
10 Standard deviationStd dev±Thuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)FeL diss
11 Iron, dissolved, conditional complex stabilityFe LogK´ dissThuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)in 1/mol
12 Standard deviationStd dev±Thuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)Fe LogK' diss
13 SensitivitySensitivityThuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)of the titration measurement (slope of the straight part of the titration curve, in Amp.mol-1)
14 Standard deviationStd dev±Thuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)sensitivity
15 Iron-binding ligand, dissolvedFeL dissnmol/lThuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)excess L = [Lt]-[Fe], (Eq of nM Fe)
16 RatioRatioThuróczy, Charles-EdouardLangmuir model, non-linear fit (Gerringa et al. 1995)[excess L]/[DFe]
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
384 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Date/Time		3 
Latitude		4 
Longitude		5 
Area		6 
Depth water [m]		7 
Fe diss [nmol/l]
(DFe)		8 
Fe diss std dev [±]		9 
FeL diss [nmol/l]
(Ligand [Lt ])		10 
Std dev [±]
(FeL diss)		11 
Fe LogK´ diss
(in 1/mol)		12 
Std dev [±]
(Fe LogK' diss)		13 
Sensitivity
(of the titration measurement ...)		14 
Std dev [±]
(sensitivity)		15 
FeL diss [nmol/l]
(excess L = [Lt]-[Fe], (Eq of ...)		16 
Ratio
([excess L]/[DFe])
PS70/239-1 2007-08-0180.99533.997Barents Sea50.410.043.461.4021.380.251.020.183.057.5
PS70/239-12007-08-0180.99533.997Barents Sea250.310.034.290.4821.800.101.200.113.9912.9
PS70/239-12007-08-0180.99533.997Barents Sea751.050.004.990.7221.920.151.000.143.943.8
PS70/239-12007-08-0180.99533.997Barents Sea1250.500.012.880.2422.050.131.100.052.384.7
PS70/239-12007-08-0180.99533.997Barents Sea1750.490.022.500.3321.930.220.290.022.024.2
PS70/255-1 2007-08-0382.50433.950Nansen Slope190.310.014.000.5721.480.081.940.153.6912.0
PS70/255-12007-08-0382.50433.950Nansen Slope980.530.012.540.5021.800.260.820.062.023.8
PS70/260-2 2007-08-0784.49036.138Nansen Basin500.270.033.960.2322.380.141.270.073.6813.5
PS70/260-22007-08-0784.49036.138Nansen Basin1000.280.042.700.3421.910.161.340.082.438.8
PS70/260-22007-08-0784.49036.138Nansen Basin3000.510.012.990.4822.170.301.920.182.484.8
PS70/260-22007-08-0784.49036.138Nansen Basin6980.510.011.990.2422.170.290.940.041.482.9
PS70/260-22007-08-0784.49036.138Nansen Basin14970.580.032.150.2421.860.151.610.061.572.7
PS70/260-22007-08-0784.49036.138Nansen Basin24940.950.012.430.1122.280.112.090.041.491.6
PS70/260-22007-08-0784.49036.138Nansen Basin29910.670.013.300.3021.970.121.990.112.644.0
PS70/260-22007-08-0784.49036.138Nansen Basin39260.641.240.2222.740.440.710.030.600.9
PS70/279-2 2007-08-1981.24586.208Kara Sea110.890.013.900.4721.650.091.890.133.013.4
PS70/279-22007-08-1981.24586.208Kara Sea251.100.012.070.0922.660.211.260.020.970.9
PS70/279-22007-08-1981.24586.208Kara Sea511.330.012.800.2722.060.181.750.081.481.1
PS70/279-22007-08-1981.24586.208Kara Sea1010.730.011.920.1922.110.161.510.041.181.6
PS70/279-22007-08-1981.24586.208Kara Sea2010.630.002.420.2421.930.141.160.041.792.8
PS70/279-22007-08-1981.24586.208Kara Sea3000.800.012.910.5321.670.160.750.062.112.6
PS70/309-2 2007-08-2787.045104.838Amundsen Basin501.440.032.160.0722.480.131.040.020.720.5
PS70/309-22007-08-2787.045104.838Amundsen Basin1010.450.00
PS70/309-22007-08-2787.045104.838Amundsen Basin2010.410.01
PS70/309-22007-08-2787.045104.838Amundsen Basin5010.400.012.520.6021.390.161.870.142.125.3
PS70/309-22007-08-2787.045104.838Amundsen Basin10010.291.640.7521.190.281.700.121.344.6
PS70/309-22007-08-2787.045104.838Amundsen Basin20010.340.00
PS70/309-22007-08-2787.045104.838Amundsen Basin27500.560.021.170.1621.930.181.990.060.621.1
PS70/309-22007-08-2787.045104.838Amundsen Basin34990.320.01
PS70/309-22007-08-2787.045104.838Amundsen Basin42510.220.010.880.1721.790.261.740.040.663.0
PS70/352-2 2007-09-1086.642177.545Makarov Basin501.520.002.700.4621.570.161.330.071.170.8
PS70/352-22007-09-1086.642177.545Makarov Basin1000.650.021.510.1821.840.161.860.050.861.3
PS70/352-22007-09-1086.642177.545Makarov Basin2000.440.031.890.3221.430.131.740.061.453.3
PS70/352-22007-09-1086.642177.545Makarov Basin7510.450.011.260.2521.660.221.700.060.811.8
PS70/352-22007-09-1086.642177.545Makarov Basin15000.330.010.660.1721.900.411.750.060.331.0
PS70/352-22007-09-1086.642177.545Makarov Basin22510.240.010.580.1421.850.341.850.050.341.4
PS70/352-22007-09-1086.642177.545Makarov Basin30010.170.001.180.1421.500.102.040.031.016.1
PS70/352-22007-09-1086.642177.545Makarov Basin39000.220.011.530.2821.470.131.850.081.316.0