Stable oxygen isotope profile of the NGRIP_2012 firn core, annual means

Stable oxygen isotopes (δ18O) were measured on discrete samples using Cavity Ring-Down spectroscopy with an L2120-i and L2130-i by Picarro Instruments. The δ18O concentration with depth is provided with a precision of better than 0.1 per mil. Using raw, un-calibrated dielectrical profiling (DEP) dat...

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Bibliographic Details
Main Authors: Freitag, Johannes, Kipfstuhl, Sepp, Weißbach, Stefanie, Karlsson, Nanna Bjørnholt, Münch, Thomas, Hörhold, Maria
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Age
AWI_Envi
AWI_Glac
AWI Arctic Land Expedition
Calculated
annual mean
density
FIRNC
firn core
Glaciology @ AWI
GL-Land_2012_NEEM12_NGT12
Greenland
NEEM
NGRIP_2012
North Greenland Eemian Ice Drilling
North Greenland Traverse
Polar Terrestrial Environmental Systems @ AWI
δ18O
water
Arctic
North Greenland
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.931706
https://doi.org/10.1594/PANGAEA.931706
Description
Summary:Stable oxygen isotopes (δ18O) were measured on discrete samples using Cavity Ring-Down spectroscopy with an L2120-i and L2130-i by Picarro Instruments. The δ18O concentration with depth is provided with a precision of better than 0.1 per mil. Using raw, un-calibrated dielectrical profiling (DEP) data from the field (NEEM Set-up), volcanic tie points were derived. Together with the smoothed density data and the isotopic composition the record was dated by layer counting. The annual mean values of δ18O were obtained based on this dating.

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