Extension of the stable oxygen isotope and density profile of the NGRIP ice core ...
The firn core array of the North Greenland Traverse (NGT) provides unique climatic information for North Greenland until the mid 1990ies. In order to extend this climate record into more recent time, some of the drill sites were revisited and extension cores were drilled. The record consists of a fi...
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Online Access: | https://dx.doi.org/10.1594/pangaea.931746 https://doi.pangaea.de/10.1594/PANGAEA.931746 |
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ftdatacite:10.1594/pangaea.931746 2023-06-11T04:12:06+02:00 Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... Freitag, Johannes Kipfstuhl, Sepp Weißbach, Stefanie Karlsson, Nanna Bjørnholt Münch, Thomas Hörhold, Maria 2021 application/zip https://dx.doi.org/10.1594/pangaea.931746 https://doi.pangaea.de/10.1594/PANGAEA.931746 en eng PANGAEA Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 density firn core North Greenland Traverse stable water isotopes Glaciology @ AWI AWI_Glac North Greenland Eemian Ice Drilling NEEM Polar Terrestrial Environmental Systems @ AWI AWI_Envi Bundled Publication of Datasets Collection article 2021 ftdatacite https://doi.org/10.1594/pangaea.931746 2023-06-01T12:14:17Z The firn core array of the North Greenland Traverse (NGT) provides unique climatic information for North Greenland until the mid 1990ies. In order to extend this climate record into more recent time, some of the drill sites were revisited and extension cores were drilled. The record consists of a firn core from 0 to 17m m depth with a diameter of 75 cm. Density was measured by micro-focus Computer Tomography with a resolution of 0.1mm and subsequently smoothed with a Gaussian filter with sigma 2cm. 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 ... Article in Journal/Newspaper Greenland ice core NGRIP North Greenland DataCite Metadata Store (German National Library of Science and Technology) Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
density firn core North Greenland Traverse stable water isotopes Glaciology @ AWI AWI_Glac North Greenland Eemian Ice Drilling NEEM Polar Terrestrial Environmental Systems @ AWI AWI_Envi |
spellingShingle |
density firn core North Greenland Traverse stable water isotopes Glaciology @ AWI AWI_Glac North Greenland Eemian Ice Drilling NEEM Polar Terrestrial Environmental Systems @ AWI AWI_Envi Freitag, Johannes Kipfstuhl, Sepp Weißbach, Stefanie Karlsson, Nanna Bjørnholt Münch, Thomas Hörhold, Maria Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
topic_facet |
density firn core North Greenland Traverse stable water isotopes Glaciology @ AWI AWI_Glac North Greenland Eemian Ice Drilling NEEM Polar Terrestrial Environmental Systems @ AWI AWI_Envi |
description |
The firn core array of the North Greenland Traverse (NGT) provides unique climatic information for North Greenland until the mid 1990ies. In order to extend this climate record into more recent time, some of the drill sites were revisited and extension cores were drilled. The record consists of a firn core from 0 to 17m m depth with a diameter of 75 cm. Density was measured by micro-focus Computer Tomography with a resolution of 0.1mm and subsequently smoothed with a Gaussian filter with sigma 2cm. 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 ... |
format |
Article in Journal/Newspaper |
author |
Freitag, Johannes Kipfstuhl, Sepp Weißbach, Stefanie Karlsson, Nanna Bjørnholt Münch, Thomas Hörhold, Maria |
author_facet |
Freitag, Johannes Kipfstuhl, Sepp Weißbach, Stefanie Karlsson, Nanna Bjørnholt Münch, Thomas Hörhold, Maria |
author_sort |
Freitag, Johannes |
title |
Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
title_short |
Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
title_full |
Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
title_fullStr |
Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
title_full_unstemmed |
Extension of the stable oxygen isotope and density profile of the NGRIP ice core ... |
title_sort |
extension of the stable oxygen isotope and density profile of the ngrip ice core ... |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://dx.doi.org/10.1594/pangaea.931746 https://doi.pangaea.de/10.1594/PANGAEA.931746 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core NGRIP North Greenland |
genre_facet |
Greenland ice core NGRIP North Greenland |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.931746 |
_version_ |
1768387719660044288 |