Stable isotopes in water in the Fram Strait from POLARSTERN cruises PS92 and PS93/1 in 2015 ...

Measurements of stable water isotopes (δ Deuterium, δ18O, δ13C) from the water column in the Fram Strait from the POLARSTERN cruises PS92 (ARK-XXIX/1, TRANSSIZ) and PS93.1 (ARK-XXIX/2.1) in May to July 2015. δ Deuterium and δ18O were measured with a Picarro 2130i CRDS System, δ13C with a Finnigan MA...

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Bibliographic Details
Main Authors: Tell, Franziska, Werner, Kirstin, Bauch, Dorothea, Kölling, Martin
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
Fram Strait
stable carbon isotope
stable oxygen isotope
stable water isotopes
Event label
Latitude of event
Longitude of event
Date/Time of event
DEPTH, water
Sample comment
δ Deuterium, water
δ Deuterium, water, uncertainty
δ18O, water
δ18O, water, uncertainty
Comment
δ13C
δ13C, uncertainty
CTD/Rosette
Ice station
Multicorer with television
WP-2 towed closing plankton net
Underwater video profiler
Expendable CTD
MultiCorer
Giant box corer
Isotope analyzer L2130-i, Picarro Inc.
Mass spectrometer Finnigan MAT 252
PS92
PS93.1
Polarstern
Online Access:https://dx.doi.org/10.1594/pangaea.957206
https://doi.pangaea.de/10.1594/PANGAEA.957206
Description
Summary:Measurements of stable water isotopes (δ Deuterium, δ18O, δ13C) from the water column in the Fram Strait from the POLARSTERN cruises PS92 (ARK-XXIX/1, TRANSSIZ) and PS93.1 (ARK-XXIX/2.1) in May to July 2015. δ Deuterium and δ18O were measured with a Picarro 2130i CRDS System, δ13C with a Finnigan MAT 252 gas isotope ratio mass spectrometer with Gasbench 2 at MARUM - Center for Marine Environmental Sciences. The measurements were conducted in 2020/2021. ... : δ Deuterium and δ18O measurements were conducted measuring 9 injections of 9 µL each. The given result is the average of the last three injections. The nominal machine standard deviation is 0.03 for ∂18O and 0.3 for ∂D, yet this is for freshwater samples, so the actual standard deviation is higher owing to salinity. CH4 concentrations might disturb the isotope signal. 123 of the 297 water samples used for δ Deuterium and δ18O measurements were filtered before the measurement, which is indicated in a separate column in the data. Filtration was done with Sartorius microsart filter.The standard deviation of the house standard (Solnhofen limestone) over measurements of δ13C was 0.04 ‰. ...

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