Citation:

PANGAEA.979687 (dataset in review)

Name: Stable water isotopes of PeCaBeau water samples
License: https://creativecommons.org/licenses/by/4.0/
Keywords: biogeochemistry; Hydrogen isotopes; Oxygen isotopes; stable water isotopes

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Abstract:

Water sampling was performed using a CTD Rosette system, consisting of 12 L Niskin bottles. This dataset contains oxygen (δ¹⁸O) and hydrogen (δD) isotope measurements conducted at the ISOLAB Facility at the Alfred Wegener Institute (AWI) Potsdam (Sample ID PCB01 to PCB23) and at ETH Zurich (Sample ID 424 to 546). Isotope analyses at AWI Potsdam were performed using DELTA-S Finnigan MAT mass spectrometers (USA) employing the equilibration method, described in Meyer et al. (2000). The isotope ratios are reported in per mil (‰) relative to the Vienna Standard Mean Ocean Water (VSMOW) as the international reference standard. Isotope analyses at ETH Zurich were performed using a PICARRO isotope and gas concentration analyzer (L2130-i). Nitrogen was used as purge gas and the vaporizer temperature was set at 110 °C. There were 12 injections per sample (1.8 µL), six injections were used to flush the vaporizer and measurement cavity of the instrument between samples. The latter six injections were injected as individual pulses for measurement with the latter four used in the data reduction. Isotope compositions were calibrated against reference materials from the International Atomic Energy Agency (IAEA) including SLAP2, GRESP, and VSMOW2 and in-house reference materials, resulting in a precision of analyses of 0.1 – 2‰. An independent quality control was carried up against reference materials from the United States Geologic Survey (USGS) which were run as quality control. In addition to the δ¹⁸O and δD values, the second-order parameter deuterium excess (d) was calculated according to the equation (after Dansgaard, 1964): d = δD − 8 × δ¹⁸O

Keyword(s):

biogeochemistry; Hydrogen isotopes; Oxygen isotopes; stable water isotopes

Related to:

Bröder, Lisa; O'Regan, Matt; Fritz, Michael; Juhls, Bennet; Priest, Taylor; Lattaud, Julie; Whalen, Dustin; Matsuoka, Atsushi; Pellerin, Andre; Bossé-Demers, Thomas; Rudbäck, Daniel; Eulenburg, Antje; Carson, Thomas; Rodriguez-Cuicas, Maria-Emilia; Overduin, Pier Paul; Vonk, Jorien E (2022): The Permafrost Carbon in the Beaufort Sea (PeCaBeau) Expedition of the Research Vessel CCGS AMUNDSEN (AMD2104) in 2021. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 759, 120 pp, https://doi.org/10.48433/BzPM_0759_2022

References:

Dansgaard, W (1964): Stable isotopes in precipitation. Tellus, 16(4), 436-468, https://doi.org/10.3402/tellusa.v16i4.8993

Meyer, Hanno; Schönicke, Lutz; Wand, Ulrich; Hubberten, Hans-Wolfgang; Friedrichsen, Hans (2000): Isotope Studies of Hydrogen and Oxygen in Ground Ice - Experiences with the Equilibration Technique. Isotopes in Environmental and Health Studies, 36(2), 133-149, https://doi.org/10.1080/10256010008032939

Additional metadata:

SENSOR: Metadata for laboratory ISOLAB Facility - Stable Isotope Laboratory Potsdam at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.ddc92f54-4c63-492d-81c7-696260694001

SENSOR: Metadata for mass spectrometer Finnigan Delta-S mass spectrometer (DIFE) at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.af148dea-fe65-4c87-9744-50dc4c81f7c9

Funding:

Horizon 2020 (H2020), grant/award no. 730965 : Arctic Research Icebreaker Consortium: A strategy for meeting the needs for marine-based research in the Arctic (ARICE)

Swiss Polar Institute (SPI), grant/award no. bc2831ff-2e5d-4970-b953-8ea6b60af2f1 : Arctic expedition on ice breaker Amundsen in the Beaufort Sea

Coverage:

Median Latitude: 70.796142 * Median Longitude: -134.906932 * South-bound Latitude: 69.387820 * West-bound Longitude: -140.548520 * North-bound Latitude: 75.007590 * East-bound Longitude: -121.388860

Date/Time Start: 2021-09-18T00:29:32 * Date/Time End: 2021-10-04T16:19:44

Minimum DEPTH, water: 1.618 m * Maximum DEPTH, water: 1597.700 m

Event(s):

PCB-01-CTD (PCB-01) * Latitude: 71.232880 * Longitude: -125.598450 * Date/Time Start: 2021-09-18T00:29:32 * Date/Time End: 2021-09-18T03:23:48 * Elevation: -411.0 m * Campaign: (PeCaBeau) * Basis: CCGS Amundsen * Method/Device: (CTD-RO)

PCB-02-CTD (PCB-02) * Latitude: 71.622000 * Longitude: -128.105990 * Date/Time Start: 2021-09-21T01:35:34 * Date/Time End: 2021-09-21T03:50:11 * Elevation: -314.0 m * Campaign: (PeCaBeau) * Basis: CCGS Amundsen * Method/Device: (CTD-RO)

PCB-03-CTD (PCB-03) * Latitude: 72.113100 * Longitude: -131.046760 * Date/Time Start: 2021-09-21T13:22:42 * Date/Time End: 2021-09-21T22:09:24 * Elevation: -1044.0 m * Campaign: (PeCaBeau) * Basis: CCGS Amundsen * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Fritz, Michael
2	Date/Time of event	Date/Time		Fritz, Michael
3	Station label	Station		Fritz, Michael
4	Sample ID	Sample ID		Fritz, Michael
5	LATITUDE	Latitude		Fritz, Michael		Geocode
6	LONGITUDE	Longitude		Fritz, Michael		Geocode
7	Depth, description	Depth desc		Fritz, Michael
8	DEPTH, water	Depth water	m	Fritz, Michael		Geocode
9	δ18O, water	δ18O H2O	‰ SMOW	Fritz, Michael	Mass spectrometer Finnigan MAT Delta-S; PICARRO isotope and gas concentration analyzer (L2130-i)
10	δ Deuterium, water	δD H2O	‰ SMOW	Fritz, Michael	Mass spectrometer Finnigan MAT Delta-S; PICARRO isotope and gas concentration analyzer (L2130-i)
11	Deuterium excess	d xs	‰	Fritz, Michael	Calculated

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2089 data points

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