Huhn, Oliver; Rhein, Monika; Sültenfuß, Jürgen (2026): Noble gas (He and Ne isotopes) measurements from RV Maria S. Merian cruise MSM56 (Scoresby Sund, East Greenland, 2016) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995302 (DOI registration in progress)
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Published: 2026-06-25
Abstract:
In total we took 70 water samples for stable noble gas isotopes (3He, 4He, 20Ne, 22Ne) in copper tubes from 11 stations in Scoresby Sund, east Greenland. The water samples were stored from the CTD/water bottle system without contact to atmospheric air and preventing air bubbles into gas tight copper tubes, which are clamped of at both sides. In the IUP Bremen noble gas lab the samples were pre-processed with a UHV (ultra high vacuum) gas extraction system. Sample gases are transferred via water vapour into a glass ampoule kept at liquid nitrogen temperature. For analysis of the noble gas isotopes the glass ampoules are connected to a fully automated UHV mass spectrometric system equipped with a two stage cryogenic system. Regularly, the system is calibrated with atmospheric air standards (reproducibility <0.2%). Also measurement of line blanks and linearity are done. The performance of the Bremen facility is described in Sültenfuß et al. (2009). In total, 49 noble gas samples were analyzed successfully. The total errors for the noble gas measurements are estimated to be 0.4% for 4He, 0.4% for total Ne, and 0.4% for δ 3He.
Keyword(s):
References:
Friedrichs, Anna; Schwalfenberg, Kai; Koch, Boris P; Zielinski, Oliver (2017): Physical oceanography during MARIA S. MERIAN cruise MSM56 (MECAF) [dataset]. Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität Oldenburg, PANGAEA, https://doi.org/10.1594/PANGAEA.871015
Further details:
Huhn, Oliver; Rhein, Monika; Sültenfuß, Jürgen: Readme: Noble gas (He and Ne isotopes) measurements from RV Maria S. Merian cruise MSM56 (Scoresby Sund, East Greenland, 2016). msm56_He_Ne_ohuhn_IUP_bremen_germany_readme.pdf
Coverage:
Median Latitude: 73.291980 * Median Longitude: -18.376141 * South-bound Latitude: 71.347800 * West-bound Longitude: -28.316300 * North-bound Latitude: 78.966500 * East-bound Longitude: 12.440700
Date/Time Start: 2016-07-03T04:08:00 * Date/Time End: 2016-07-17T06:27:00
Minimum DEPTH, water: 1.56 m * Maximum DEPTH, water: 1000.52 m
Event(s):
MSM56_553-1 * Latitude: 78.966500 * Longitude: 12.379000 * Date/Time: 2016-07-03T04:08:00 * Elevation: -71.5 m * Location: North Greenland Sea * Campaign: MSM56 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM56_555-1 * Latitude: 78.896830 * Longitude: 12.440670 * Date/Time: 2016-07-03T12:03:00 * Elevation: -80.4 m * Location: North Greenland Sea * Campaign: MSM56 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM56_556-1 * Latitude: 78.912670 * Longitude: 12.180500 * Date/Time: 2016-07-03T16:47:00 * Elevation: -98.2 m * Location: North Greenland Sea * Campaign: MSM56 * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
Comment:
According to the WOCE standards the following flags were applied to each measurement:
flag 2 = good
flag 3 = doubtful
flag 4 = bad
flag 6 = mean of replicates
flag 9 = no measurement (then, the data value is set to -9.000)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Huhn, Oliver | |||
| 2 | LATITUDE | Latitude | Huhn, Oliver | Geocode | ||
| 3 | LONGITUDE | Longitude | Huhn, Oliver | Geocode | ||
| 4 | Elevation of event | Elevation | m | Huhn, Oliver | ||
| 5 | Cast number | Cast | Huhn, Oliver | |||
| 6 | Bottle number | Bottle | # | Huhn, Oliver | ||
| 7 | DEPTH, water | Depth water | m | Huhn, Oliver | Calculated from pressure | Geocode |
| 8 | Pressure, water | Press | dbar | Huhn, Oliver | see reference(s) | |
| 9 | Helium-4 | 4He | nmol/kg | Huhn, Oliver | see reference(s) | i.e. 4He~total He |
| 10 | Quality flag, helium-4 | QF 4He | Huhn, Oliver | see reference(s) | ||
| 11 | δ Helium-3 | δ3He | % | Huhn, Oliver | see reference(s) | δ3He [%] = 100 x ([3He/4He]obs/[3He/4He]atm.– 1 |
| 12 | Quality flag, δ helium-3 | QF δ3He | Huhn, Oliver | see reference(s) | ||
| 13 | Neon | Ne | nmol/kg | Huhn, Oliver | see reference(s) | i.e. total Ne = 20Ne+22Ne |
| 14 | Quality flag, neon | QF Ne | Huhn, Oliver | see reference(s) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
441 data points