Citation:

PANGAEA.990477

Name: Sea ice brine biogeochemistry measured during RV POLARSTERN cruise ANT-XXIII/7 aka WWOS in 2006
Published: 2026-02-25
License: https://creativecommons.org/licenses/by/4.0/
Keywords: biogeochemical data; brine; Sea ice; Southern Ocean; Weddell Sea

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Published: 2026-02-25 • DOI registered: 2026-03-26

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Abstract:

During the WWOS expedition of RV Polarstern in 2006 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, 18O, chlorophyll, Particulate organic carbon and nitrogen, CDOM absorbance.

Keyword(s):

biogeochemical data; brine; Sea ice; Southern Ocean; Weddell Sea

Related to:

Lemke, Peter (2009): The Expedition of the Research Vessel Polarstern to the Antarctic in 2006 (ANT-XXIII/7). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 586, 147 pp, https://doi.org/10.2312/BzPM_0586_2009

References:

Norman, Louiza; Thomas, David Neville; Stedmon, Colin A; Granskog, Mats A; Papadimitriou, Stathys; Krapp, Rupert H; Meiners, Klaus M; Lannuzel, Delphine; Van Der Merwe, P; Dieckmann, Gerhard S (2011): The characteristics of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) in Antarctic sea ice. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1075-1091, https://doi.org/10.1016/j.dsr2.2010.10.030

Papadimitriou, Stathys; Kennedy, Hilary; Norman, Louiza; Kennedy, D P; Dieckmann, Gerhard S; Thomas, David Neville (2012): The effect of biological activity, CaCO 3 mineral dynamics, and CO 2 degassing in the inorganic carbon cycle in sea ice in late winter‐early spring in the Weddell Sea, Antarctica. Journal of Geophysical Research: Oceans, 117(C8), 2012JC008058, https://doi.org/10.1029/2012JC008058

Stedmon, Colin A; Thomas, David Neville; Papadimitriou, Stathys; Granskog, Mats A; Dieckmann, Gerhard S (2011): Using fluorescence to characterize dissolved organic matter in Antarctic sea ice brines. Journal of Geophysical Research, 116(G3), G03027, https://doi.org/10.1029/2011JG001716

Underwood, G J C; Fietz, Susanne; Papadimitriou, Stathys; Thomas, David Neville; Dieckmann, Gerhard S (2010): Distribution and composition of dissolved extracellular polymeric substances (EPS) in Antarctic sea ice. Marine Ecology Progress Series, 404, 1-19, https://doi.org/10.3354/meps08557

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: -62.623677 * Median Longitude: -51.129337 * South-bound Latitude: -65.110400 * West-bound Longitude: -57.405600 * North-bound Latitude: -59.835100 * East-bound Longitude: -40.816300

Date/Time Start: 2006-09-08T18:52:00 * Date/Time End: 2006-10-13T16:05:00

Minimum DEPTH, ice/snow: 0.150 m * Maximum DEPTH, ice/snow: 1.860 m

Event(s):

PS69/542-2 (WS-1) * Latitude Start: -60.466000 * Longitude Start: -40.816300 * Latitude End: -60.445500 * Longitude End: -40.784800 * Date/Time Start: 2006-09-08T18:52:00 * Date/Time End: 2006-09-08T21:25:00 * Elevation Start: -759.0 m * Elevation End: -737.0 m * Location: Scotia Sea, southwest Atlantic * Campaign: (PS69 WWOS) * Basis: * Method/Device: Ice station (ICE)

PS69/543-1 (WS-2) * Latitude Start: -60.600500 * Longitude Start: -41.642500 * Latitude End: -60.598800 * Longitude End: -41.497900 * Date/Time Start: 2006-09-09T13:30:00 * Date/Time End: 2006-09-09T20:48:00 * Elevation Start: -2611.0 m * Elevation End: -2298.0 m * Location: Weddell Sea * Campaign: (PS69 WWOS) * Basis: * Method/Device: Ice station (ICE)

PS69/545-2 * Latitude: -60.672800 * Longitude: -42.156000 * Date/Time: 2006-09-10T14:15:00 * Elevation: -2518.0 m * Location: Weddell Sea * Campaign: (PS69 WWOS) * Basis: * Method/Device: Ice station (ICE)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Thomas, David Neville
2	DATE/TIME	Date/Time		Thomas, David Neville		Geocode
3	LATITUDE	Latitude		Thomas, David Neville		Geocode
4	LONGITUDE	Longitude		Thomas, David Neville		Geocode
5	Sample ID	Sample ID		Thomas, David Neville
6	DEPTH, ice/snow	Depth ice/snow	m	Thomas, David Neville		Geocode – sackhole depth which is measured from the top of the ice to bottom of the sackhole
7	Temperature, brine	T brine	°C	Thomas, David Neville	Thermometer, HANNA Instruments, HI93530 [calibrated K-Thermocouple probe]
8	Salinity	Sal		Thomas, David Neville	Conductivity meter, SEMAT, Cond 315i/SET; measured with conductivity probe, WTW, TetraCon 325
9	pH	pH		Thomas, David Neville	pH 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
10	Alkalinity, total	AT	µmol/kg	Thomas, David Neville	Potentiometric titration	potentiometric 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
11	Carbon, inorganic, dissolved	DIC	µmol/kg	Thomas, David Neville	Vacuum line manometer, Chell instruments	determined following in vacuo reaction with 85% H3PO4 and cryogenic CO2 gas distillation using an in-line manometer
12	δ13C, dissolved inorganic carbon	δ13C DIC	‰ PDB	Thomas, David Neville	Mass 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
13	Oxygen	O2	µmol/kg	Thomas, David Neville	Winkler titration with photometric end-point detection
14	Dissolved oxygen saturation	DO sat	%	Thomas, David Neville	Calculated	in situ
15	Chlorophyll a	Chl a	µg/l	Thomas, David Neville	Fluorometer, Turner Design, TD-700	samples filtered (precombusted GF/F), extracted in 90% acetone and analysed on fluorometer
16	Phaeopigments	Phae	µg/l	Thomas, David Neville	Fluorometer, Turner Design, TD-700	samples filtered (precombusted GF/F), extracted in 90% acetone, acidified and analysed on fluorometer
17	Carbon, organic, dissolved	DOC	µmol/kg	Thomas, David Neville	TOC analyzer, MQ 1001
18	Nitrogen, organic, dissolved	DON	µmol/kg	Thomas, David Neville	Flow injection analyser, Lachat Instruments	determined 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
19	Ammonium	[NH4]+	µmol/kg	Thomas, David Neville	Fluorescence spectrophotometer, Hitachi, F-2000
20	Nitrite	[NO2]-	µmol/kg	Thomas, David Neville	Flow injection analyzer, Lachat Instruments, QuikChem 8000
21	Nitrate and Nitrite	[NO3]- + [NO2]-	µmol/kg	Thomas, David Neville	Flow injection analyzer, Lachat Instruments, QuikChem 8000
22	Phosphate	[PO4]3-	µmol/kg	Thomas, David Neville	Flow injection analyzer, Lachat Instruments, QuikChem 8000
23	Silicate	Si(OH)4	µmol/kg	Thomas, David Neville	Flow injection analyzer, Lachat Instruments, QuikChem 8000
24	Nitrogen, organic, particulate	PON	µmol/kg	Thomas, David Neville	CN analyzer, Europa Scientific	samples filtered (precombusted GF/F) and acidified and dried. Filters analysed with a CN analyser, using acetanilide as a standard
25	Carbon, organic, particulate	POC	µmol/kg	Thomas, David Neville	CN analyzer, Europa Scientific	samples filtered (precombusted GF/F) and acidified and dried. Filters analysed with a CN analyser, using acetanilide as a standard
26	δ18O, ice	δ18O ice	‰ SMOW	Thomas, David Neville	Isotope ratio mass spectrometer, PDZ Europa Ltd., 20-20	was 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
27	Absorption coefficient, colored dissolved organic matter at 240 nm	aCDOM_240	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm
28	Absorption coefficient, colored dissolved organic matter at 280 nm	aCDOM_280	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm
29	Absorption coefficient, colored dissolved organic matter at 300 nm	aCDOM_300	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm
30	Absorption coefficient, colored dissolved organic matter at 330 nm	aCDOM_330	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm
31	Absorption coefficient, colored dissolved organic matter at 350 nm	aCDOM_350	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm
32	Absorption coefficient, colored dissolved organic matter at 440 nm	aCDOM_440	1/m	Thomas, David Neville	UV-VIS-Spektrophotometer, Shimadzu, 1601	samples filtered (precombusted GF/F) & absorbance of CDOM was measured at room temperature using a dual beam Shimadzu 1601 UV-Vis spectrophotometer over the range 200 to 750 nm at a resolution of 0.5 nm

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)

Size:

3143 data points

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