Citation:

PANGAEA.948511

Name: Stable water isotopes of snow during MOSAiC expedition
Published: 2022-09-20
License: https://creativecommons.org/licenses/by/4.0/
Keywords: isotopes; Mosaic; snow

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Abstract:

Snow samples were collected from several locations on the main MOSAiC ice floe on weekly basis. Snow samples for measurement of stable water isotopes (δ18O, δD,) were collected in three different layers (top, middle, bottom) using a metal density cutter. At first, samples were stored in sealed plastic bags and the air was squeezed out before closing the bags. At later stages of the expedition, samples were stored in plastic cups with lids. Later the samples were thawed completely at room temperature and poured into 20 ml glass vials and sealed with parafilm tape and stored at 4°C. Oxygen and hydrogen isotope analyses were carried out at the ISOLAB Facility at AWI Potsdam (https://hdl.handle.net/10013/sensor.ddc92f54-4c63-492d-81c7-696260694001) with mass spectrometers (DELTA-S Finnigan MAT, USA): https://hdl.handle.net/10013/sensor.af148dea-fe65-4c87-9744-50dc4c81f7c9 https://hdl.handle.net/10013/sensor.62e86761-9fae-4f12-9c10-9b245028ea4c. employing the equilibration method (details in Meyer et al., 2000). δ18O and δD values were given in per mil (‰) vs. Vienna standard mean ocean water (V-SMOW) as the standard. The second order parameter d excess was computed according to: d excess = δD-8 δ18O (Dansgaard, 1964).

Keyword(s):

isotopes; Mosaic; snow

Further details:

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

SENSOR (2022): Metadata for mass spectrometer Finnigan Delta-S mass spectrometer (BERTA) at Current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.62e86761-9fae-4f12-9c10-9b245028ea4c

SENSOR (2022): 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

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

Project(s):

Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)

Funding:

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0869A : MOSAiC 1 CiASOM: Verwendung von stabilen Wasserisotopen für ein besseres Verständnis des arktischen Wasserkreislaufs

Coverage:

Median Latitude: 85.863699 * Median Longitude: 68.853478 * South-bound Latitude: 79.994250 * West-bound Longitude: -0.590886 * North-bound Latitude: 89.065440 * East-bound Longitude: 128.146859

Date/Time Start: 2019-10-25T00:00:00 * Date/Time End: 2020-09-18T00:00:00

Minimum DEPTH, water: 0.000 m * Maximum DEPTH, water: 0.830 m

Event(s):

PS122/1_4-10 * Latitude: 85.436912 * Longitude: 128.146859 * Date/Time: 2019-10-25T01:15:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow pit (SNOWPIT) * Comment: Close to met city

PS122/1_5-5 * Latitude: 85.541385 * Longitude: 126.423526 * Date/Time: 2019-10-28T01:00:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow pit (SNOWPIT) * Comment: Close to met city; Slight snowfall, drifting snow, blowing snow

PS122/1_5-92 * Latitude: 85.553402 * Longitude: 126.362183 * Date/Time: 2019-10-28T02:29:00 * Elevation: -4379.5 m * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Snow sampler metal (SSM) * Comment: snow_sample_FYI_2019-10-28

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Mellat, Moein
2	Sample code/label	Sample label		Mellat, Moein		Additional lable on bottle
3	Station label	Station		Mellat, Moein
4	Sample ID	Sample ID		Mellat, Moein		ISOLAB_ID
5	DATE/TIME	Date/Time		Mellat, Moein		Geocode
6	Sample type	Samp type		Mellat, Moein
7	DEPTH, water	Depth water	m	Mellat, Moein		Geocode – Sample top
8	DEPTH, water	Depth water	m	Mellat, Moein		Geocode – Sample bottom
9	Height, relative, from ice/snow line, maximum	H rel ice/snow max	m	Mellat, Moein		Sample top
10	Height, relative, from ice/snow line, minimum	H rel ice/snow min	m	Mellat, Moein		Sample bottom
11	Layer description	Layer		Mellat, Moein
12	δ18O, water	δ18O H2O	‰ SMOW	Mellat, Moein	Mass spectrometer Finnigan MAT Delta-S (ISOLAB)	vs. VSMOW
13	δ Deuterium, water	δD H2O	‰ SMOW	Mellat, Moein	Mass spectrometer Finnigan MAT Delta-S (ISOLAB)	vs. VSMOW
14	Deuterium excess	d xs	‰	Mellat, Moein	Calculated after Dansgaard (1964)	vs. VSMOW
15	Comment	Comment		Mellat, Moein

Change history:

2022-10-18T07:28:53 – The authorship was extended to include Brunello, CF.

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:

2717 data points

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