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Thomas, David Neville; Papadimitriou, Stathys (2026): Sea ice brine biogeochemistry measured during RV POLARSTERN cruise ANT-XXII aka ISPOL in 2004/05 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.990321

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Published: 2026-02-18 • DOI registered: 2026-03-19

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Abstract:
During the ISPOL expedition of RV Polarstern in 2004/05 sea ice brine samples (from sackhole sampling) were routinely taken. Subsequent analyses included pH, temperature, salinity, dissolved inorganic and organic (DOC & DON) nutrients (nitrite, nitrate, ammonium, phosphate, silicate), dissolved oxygen, alkalinity, 13C of DIC, chlorophyll, Particulate organic carbon and nitrogen.
Keyword(s):
biogeochemical data; brine; Sea ice; Weddell Sea
Related to:
El Naggar, Saad El Dine; Dieckmann, Gerhard S; Haas, Christian; Schröder, Michael; Spindler, Michael (2007): The Expeditions ANTARKTIS-XXII/1 and XXII/2 of the Research Vessel Polarstern in 2004/2005. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 551, 259 pp, https://doi.org/10.2312/BzPM_0551_2007
References:
Papadimitriou, Stathys; Kennedy, Hilary; Krell, Andreas (2007): Biogeochemical composition of natural sea ice brines from the Weddell Sea during early austral summer. Limnology and Oceanography, 52(5), 1809-1823, https://doi.org/10.4319/lo.2007.52.5.1809
Underwood, Graham J C; Aslam, Shazia N; Michel, Christine; Niemi, Andrea; Norman, Louiza; Meiners, Klaus M; Laybourn-Parry, Johanna; Paterson, Harriet; Thomas, David Neville (2013): Broad-scale predictability of carbohydrates and exopolymers in Antarctic and Arctic sea ice. Proceedings of the National Academy of Sciences of the United States of America, 110(39), 15734-15739, https://doi.org/10.1073/pnas.1302870110
Coverage:
Median Latitude: -68.025030 * Median Longitude: -55.183189 * South-bound Latitude: -68.185540 * West-bound Longitude: -55.584710 * North-bound Latitude: -67.564630 * East-bound Longitude: -54.890280
Date/Time Start: 2004-12-01T12:00:00 * Date/Time End: 2004-12-29T12:00:00
Minimum DEPTH, ice/snow: 0.200 m * Maximum DEPTH, ice/snow: 0.930 m
Event(s):
ANT-XXII/2_drift-04  * Latitude: -68.172650 * Longitude: -54.890280 * Date/Time: 2004-12-01T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
ANT-XXII/2_drift-05  * Latitude: -68.185540 * Longitude: -55.112590 * Date/Time: 2004-12-02T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
ANT-XXII/2_drift-08  * Latitude: -68.114040 * Longitude: -55.258980 * Date/Time: 2004-12-05T12:00:00 * Location: Weddell Sea * Campaign: ANT-XXII/2 (PS67 ISPOL) * Basis: Polarstern * Method/Device: Ice station (ICE)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventThomas, David Neville
2 DATE/TIMEDate/TimeThomas, David NevilleGeocode
3 LATITUDELatitudeThomas, David NevilleGeocode
4 LONGITUDELongitudeThomas, David NevilleGeocode
5 Sample IDSample IDThomas, David Neville
6 DEPTH, ice/snowDepth ice/snowmThomas, David NevilleGeocode – sackhole depth which is measured from the top of the ice to bottom of the sackhole
7 Temperature, brineT brine°CThomas, David NevilleThermometer, HANNA Instruments, HI93530 [calibrated K-Thermocouple probe]
8 SalinitySalThomas, David NevilleConductivity meter, SEMAT, Cond 315i/SET; measured with conductivity probe, WTW, TetraCon 325
9 Phosphate[PO4]3-µmol/kgThomas, David NevilleFlow injection analyzer, Lachat Instruments, QuikChem 8000
10 SilicateSi(OH)4µmol/kgThomas, David NevilleFlow injection analyzer, Lachat Instruments, QuikChem 8000
11 Nitrite[NO2]-µmol/kgThomas, David NevilleFlow injection analyzer, Lachat Instruments, QuikChem 8000
12 Nitrate and Nitrite[NO3]- + [NO2]-µmol/kgThomas, David NevilleFlow injection analyzer, Lachat Instruments, QuikChem 8000
13 Ammonium[NH4]+µmol/kgThomas, David NevilleFluorescence spectrophotometer, Hitachi, F-2000
14 Carbon, organic, dissolvedDOCµmol/kgThomas, David NevilleTOC analyzer, MQ 1001
15 Nitrogen, organic, dissolvedDONµmol/kgThomas, David NevilleFlow injection analyser, Lachat Instrumentsdetermined by subtraction of NO3 and NH4 from the total dissolved nitrogen (TDN) analyzed by FIA on the LACHAT autoanalyzer using on-line peroxodisulfate oxidation coupled with ultraviolet radiation at pH 9.0 and 100°C
16 Chlorophyll aChl aµg/lThomas, David NevilleFluorometer, Turner Design, TD-700samples filtered (precombusted GF/F), extracted in 90% acetone and analysed on fluorometer
17 PhaeopigmentsPhaeµg/lThomas, David NevilleFluorometer, Turner Design, TD-700samples filtered (precombusted GF/F), extracted in 90% acetone, acidified and analysed on fluorometer
18 OxygenO2µmol/kgThomas, David NevilleWinkler titration with photometric end-point detection
19 pHpHThomas, David NevillepH meter (Metrohm electrodes)measured at laboratory temperature with a Metrohm pH meter, platinum temperature probe, Ag/AgCl reference electrode, and glass indicator electrode calibrated daily with NBS standards
20 Alkalinity, totalATµmol/kgThomas, David NevillePotentiometric titrationpotentiometric titration with 0.05 N HCl (Titrisol) using a Metrohm system of automatic burette, pH meter, platinum temperature probe, Ag/AgCl reference electrode, and glass indicator electrode calibrated daily with NBS standards
21 Carbon, inorganic, dissolvedDICµmol/kgThomas, David NevilleVacuum line manometer, Chell instrumentsdetermined following in vacuo reaction with 85% H3PO4 and cryogenic CO2 gas distillation using an in-line manometer
22 δ13C, dissolved inorganic carbonδ13C DIC‰ PDBThomas, David NevilleIsotope ratio mass spectrometer, PDZ Europa Ltd., 20-20determined on a mass spectrometer on the cryo-distilled total sample CO2 collected following in-line manometric dissolved inorganic carbon determination
23 Carbon, organic, particulatePOCµmol/lThomas, David NevilleCN analyzer, Europa Scientificsamples filtered (precombusted GF/F) and acidified and dried. Filters analysed with a CN analyser, using acetanilide as a standard
24 Nitrogen, organic, particulatePONµmol/lThomas, David NevilleCN analyzer, Europa Scientificsamples filtered (precombusted GF/F) and acidified and dried. Filters analysed with a CN analyser, using acetanilide as a standard
25 Carbon, organic, particulate/Nitrogen, organic, particulate ratioPOC/PONmol/molThomas, David Neville
26 δ13C, particulate organic carbonδ13C POC‰ PDBThomas, David NevilleMass spectrometer, VG SIRA II and Mass spectrometer, PDZ Europa Ltd.samples filtered (precombusted GF/F), acidified and dried. The Isotopic measurements of carbon were determined on CO2 generated by vacuum combusion and isotopes measured using VG SIRA II and PDZ-EUROPA 20/20 isotope ratio mass spectrometers
27 δ15N, particulate organic nitrogenδ15N PON‰ airThomas, David NevilleMass spectrometer, VG SIRA IIsamples filtered (precombusted GF/F), dried and dessicated. The Isotopic measurements of nitrogen were determined on N2 generated by vacuum combusion. Isotopes measured on a SIRA VG II mass spectrometer
28 δ18O, iceδ18O ice‰ SMOWThomas, David NevilleIsotope ratio mass spectrometer, PDZ Europa Ltd., 20-20was conducted by off-line equilibration with CO2 and subsequent measurement of the oxygen isotope ratios using a PDZ–EUROPA GEO 20/20 mass spectrometer, with normalisation relative to North Sea seawater
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
755 data points

Data

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

1 
Event
2 
Date/Time
3 
Latitude
4 
Longitude
5 
Sample ID
6 
Depth ice/snow [m]
7 
T brine [°C]
8 
Sal
9 
[PO4]3- [µmol/kg]
10 
Si(OH)4 [µmol/kg]
11 
[NO2]- [µmol/kg]
12 
[NO3]- + [NO2]- [µmol/kg]
13 
[NH4]+ [µmol/kg]
14 
DOC [µmol/kg]
15 
DON [µmol/kg]
16 
Chl a [µg/l]
17 
Phae [µg/l]
18 
O2 [µmol/kg]
19 
pH
20 
AT [µmol/kg]
21 
DIC [µmol/kg]
22 
δ13C DIC [‰ PDB]
23 
POC [µmol/l]
24 
PON [µmol/l]
25 
POC/PON [mol/mol]
26 
δ13C POC [‰ PDB]
27 
δ15N PON [‰ air]
28 
δ18O ice [‰ SMOW]
ANT-XXII/2_drift-04 2004-12-01T12:00:00-68.17265-54.89028041201SH1B0.660-3.262.21.480.41.00.80.9429414.31.1000.2252238.2834326338337.82.0018.9-1.44
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH2B0.620-3.263.21.974.31.01.02.3627916.50.4340.0883098.2744356340354.75.689.6-1.64
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH3B0.450-3.261.01.674.51.01.01.4529817.21.9110.5302128.218424135093.2188.44.5319.5-1.22
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH4B0.380-3.259.71.376.51.00.81.3721113.81.9210.7222908.170421735262.9369.620.023.5-21.805.1
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH2A0.260-3.362.91.776.61.00.61.0034119.40.6130.1215038.381436933404.38125.35.9221.2
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH3A0.250-3.261.61.977.30.90.41.0034319.30.2610.0605408.376434833024.3371.81.4848.6
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH4A0.270-3.361.01.666.91.10.40.9229717.10.7870.1432218.356425533394.1052.92.7519.3
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH5A0.280-3.261.42.067.30.90.40.8228716.00.9990.1532348.352426933254.3372.76.8210.7
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH6A0.200-3.461.21.665.70.90.41.1629017.02888.331417833793.01
ANT-XXII/2_drift-042004-12-01T12:00:00-68.17265-54.89028041201SH7A0.200-3.461.81.866.00.90.50.9926015.03698.34242603261
ANT-XXII/2_drift-05 2004-12-02T12:00:00-68.18554-55.11259041202SH1C0.230-3.259.71.362.60.90.70.5930313.11.1100.1532698.293414533583.77
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH2C0.290-3.260.02.066.00.80.80.6134215.91.1040.2193158.298412933513.75
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH3C0.460-3.260.91.763.01.00.50.5328916.61.7370.3212388.30141273232128.723.895.4-17.904.6
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH4C0.490-3.161.11.764.41.00.80.7731517.01.4140.4092423.5286.05.5815.4
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH5C0.390-3.159.50.855.70.90.50.4030713.50.9650.1862138.319410232463.9294.33.2229.3
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH1D0.840-3.463.12348.166462035512.87
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH2D0.860-3.362.61.264.11.01.01.2227613.41.1200.4463148.228429635133.04
ANT-XXII/2_drift-052004-12-02T12:00:00-68.18554-55.11259041202SH3D0.930-3.159.31.052.90.91.00.9220210.64178.209413533793.42-22.004.5
ANT-XXII/2_drift-08 2004-12-05T12:00:00-68.11404-55.25898041205SH1F0.580-2.852.90.656.00.72.10.271459.41.7810.4603978.321379329964.9146.23.9511.7-24.504.3-0.78
ANT-XXII/2_drift-082004-12-05T12:00:00-68.11404-55.25898041205SH2F0.610-2.955.10.557.90.80.50.321439.01.5880.5733848.331385930734.9654.25.2410.4-24.504.3-0.85
ANT-XXII/2_drift-082004-12-05T12:00:00-68.11404-55.25898041205SH3F0.680-2.853.50.550.20.70.40.201347.41.6550.4525448.365375129545.0672.34.7815.1-0.63
ANT-XXII/2_drift-082004-12-05T12:00:00-68.11404-55.25898041205SH4F0.630-2.853.60.537.70.80.40.201538.41.2550.5774618.398376029005.7434.5-24.403.7-0.90
ANT-XXII/2_drift-082004-12-05T12:00:00-68.11404-55.25898041205SH5F0.590-2.854.04.141.60.70.30.151808.11.5680.5305418.398377829415.7456.05.4610.2-24.604.0-0.88
ANT-XXII/2_drift-082004-12-05T12:00:00-68.11404-55.25898041205SH6F0.400-2.854.90.650.50.70.40.611508.41.8480.6954688.353386530105.3664.86.0810.7-24.204.2-0.83
ANT-XXII/2_drift-11 2004-12-08T12:00:00-68.06012-55.29073041208SH200.200-2.751.10.649.71.13.10.0012.65048.544356326364.87
ANT-XXII/2_drift-112004-12-08T12:00:00-68.06012-55.29073041208SH400.400-2.651.30.543.21.11.50.3812.34028.557343526774.52
ANT-XXII/2_drift-112004-12-08T12:00:00-68.06012-55.29073041208SH600.600-2.650.60.539.91.11.90.5116512.54568.499352826725.11
ANT-XXII/2_drift-17 2004-12-14T12:00:00-67.81713-55.40331041214SH1G0.490-2.744.50.446.60.60.30.4013417.11.5490.5055898.442314724434.2882.47.6110.8-23.704.8
ANT-XXII/2_drift-172004-12-14T12:00:00-67.81713-55.40331041214SH2G0.400-2.843.80.544.10.60.10.3011516.21.6790.4554188.434318325434.3073.66.9710.6
ANT-XXII/2_drift-172004-12-14T12:00:00-67.81713-55.40331041214SH3G0.560-2.844.60.444.10.60.20.4518225.61.7900.3884858.458321525415.0952.17.996.5-23.404.3
ANT-XXII/2_drift-172004-12-14T12:00:00-67.81713-55.40331041214SH4G0.580-2.745.00.446.50.60.10.4011215.91.8000.4944678.435319525584.1182.57.9310.4-23.105.0
ANT-XXII/2_drift-20 2004-12-17T12:00:00-67.77158-55.36401041217SH1J0.220-2.140.10.44.00.80.40.6618818.90.8200.0825318.665280720916.2355.8-0.85
ANT-XXII/2_drift-202004-12-17T12:00:00-67.77158-55.36401041217SH2J0.640-2.139.60.410.60.80.40.6524217.02.1570.2756088.683269020925.8693.16.7213.9-0.84
ANT-XXII/2_drift-202004-12-17T12:00:00-67.77158-55.36401041217SH3J0.400-2.139.80.413.11.00.20.8021416.21.3370.1716018.615279521125.36108.37.0115.4
ANT-XXII/2_drift-26 2004-12-23T12:00:00-67.81180-55.58471041223SH1K0.780-2.856.70.438.11.10.60.782319.00.0970.0874348.581355625855.5837.92.1417.7-20.204.2
ANT-XXII/2_drift-262004-12-23T12:00:00-67.81180-55.58471041223SH2K0.530-3.156.60.438.81.11.01.042169.60.1210.1284308.562346925086.3773.10.9279.1-19.504.2
ANT-XXII/2_drift-32 2004-12-29T12:00:00-67.56463-55.34670041229SH1M0.200-1.329.41.523.60.715.00.40414.20.2570.0928.245192518061.1430.8-24.104.3
ANT-XXII/2_drift-322004-12-29T12:00:00-67.56463-55.34670041229SH2M0.400-1.330.21.641.10.816.00.24234.30.8300.1273898.108200119051.3628.11.2023.4-23.404.00.11
ANT-XXII/2_drift-322004-12-29T12:00:00-67.56463-55.34670041229SH3M0.600-1.331.01.947.10.819.00.41683.10.7300.1033528.041199419720.8559.8-22.603.5