Water stable isotope record of ice core Dome Fuji ...

Whereas ice cores from high-accumulation sites in coastal Antarctica clearly demonstrate annual layering, it is debated whether a seasonal signal is also preserved in ice cores from lower-accumulation sites further inland and particularly on the East Antarctic Plateau. In this study, we examine 5 m...

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Bibliographic Details
Main Authors: Svensson, Anders M, Fujita, Shuji, Bigler, Matthias, Braun, M, Dallmayr, Remi, Gkinis, Vasileios, Goto-Azuma, Kumiko, Hirabayashi, Motohiro, Kawamura, K, Kipfstuhl, Sepp, Kjær, Helle Astrid, Popp, Trevor, Simonsen, Marius, Steffensen, Jørgen Peder, Vallelonga, Paul T, Vinther, Bo Møllesøe
Format: Dataset
Language:English
Published: PANGAEA 2018
Subjects:
DEPTH, ice/snow
δ18O, water
δ Deuterium
Drilling/drill rig
Antarc*
Antarctic
Antarctica
East Antarctica
Greenland
Greenland ice core
Greenland Ice core Project
ice core
NGRIP
North Greenland
North Greenland Ice Core Project
Online Access:https://dx.doi.org/10.1594/pangaea.886037
https://doi.pangaea.de/10.1594/PANGAEA.886037
Description
Summary:Whereas ice cores from high-accumulation sites in coastal Antarctica clearly demonstrate annual layering, it is debated whether a seasonal signal is also preserved in ice cores from lower-accumulation sites further inland and particularly on the East Antarctic Plateau. In this study, we examine 5 m of early Holocene ice from the Dome Fuji (DF) ice core at a high temporal resolution by continuous flow analysis. The ice was continuously analysed for concentrations of dust, sodium, ammonium, liquid conductivity, and water isotopic composition. Furthermore, a dielectric profiling was performed on the solid ice. In most of the analysed ice, the multi-parameter impurity data set appears to resolve the seasonal variability although the identification of annual layers is not always unambiguous. The study thus provides information on the snow accumulation process in central East Antarctica. A layer counting based on the same principles as those previously applied to the NGRIP (North Greenland Ice core Project) and ... : Dome Fuji CFA measurements coupled with a Picarro 1102. The age in this depth region is around 9.6 kab2k. ...

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