A representative density profile of the North Greenland snowpack
Along a traverse through North Greenland in May 2015 we collected snow cores up to 2 m depth and analyzed their density and water isotopic composition. A new sampling technique and an adapted algorithm for comparing data sets from different sites and aligning stratigraphic features are presented. We...
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ftcopernicus:oai:publications.copernicus.org:tc51098 2023-05-15T16:27:15+02:00 A representative density profile of the North Greenland snowpack Schaller, Christoph Florian Freitag, Johannes Kipfstuhl, Sepp Laepple, Thomas Steen-Larsen, Hans Christian Eisen, Olaf 2018-09-27 application/pdf https://doi.org/10.5194/tc-10-1991-2016 https://tc.copernicus.org/articles/10/1991/2016/ eng eng doi:10.5194/tc-10-1991-2016 https://tc.copernicus.org/articles/10/1991/2016/ eISSN: 1994-0424 Text 2018 ftcopernicus https://doi.org/10.5194/tc-10-1991-2016 2020-07-20T16:24:01Z Along a traverse through North Greenland in May 2015 we collected snow cores up to 2 m depth and analyzed their density and water isotopic composition. A new sampling technique and an adapted algorithm for comparing data sets from different sites and aligning stratigraphic features are presented. We find good agreement of the density layering in the snowpack over hundreds of kilometers, which allows the construction of a representative density profile. The results are supported by an empirical statistical density model, which is used to generate sets of random profiles and validate the applied methods. Furthermore we are able to calculate annual accumulation rates, align melt layers and observe isotopic temperatures in the area back to 2010. Distinct relations of δ 18 O with both accumulation rate and density are deduced. Inter alia the depths of the 2012 melt layers and high-resolution densities are provided for applications in remote sensing. Text Greenland North Greenland Copernicus Publications: E-Journals Greenland The Cryosphere 10 5 1991 2002 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Along a traverse through North Greenland in May 2015 we collected snow cores up to 2 m depth and analyzed their density and water isotopic composition. A new sampling technique and an adapted algorithm for comparing data sets from different sites and aligning stratigraphic features are presented. We find good agreement of the density layering in the snowpack over hundreds of kilometers, which allows the construction of a representative density profile. The results are supported by an empirical statistical density model, which is used to generate sets of random profiles and validate the applied methods. Furthermore we are able to calculate annual accumulation rates, align melt layers and observe isotopic temperatures in the area back to 2010. Distinct relations of δ 18 O with both accumulation rate and density are deduced. Inter alia the depths of the 2012 melt layers and high-resolution densities are provided for applications in remote sensing. |
format |
Text |
author |
Schaller, Christoph Florian Freitag, Johannes Kipfstuhl, Sepp Laepple, Thomas Steen-Larsen, Hans Christian Eisen, Olaf |
spellingShingle |
Schaller, Christoph Florian Freitag, Johannes Kipfstuhl, Sepp Laepple, Thomas Steen-Larsen, Hans Christian Eisen, Olaf A representative density profile of the North Greenland snowpack |
author_facet |
Schaller, Christoph Florian Freitag, Johannes Kipfstuhl, Sepp Laepple, Thomas Steen-Larsen, Hans Christian Eisen, Olaf |
author_sort |
Schaller, Christoph Florian |
title |
A representative density profile of the North Greenland snowpack |
title_short |
A representative density profile of the North Greenland snowpack |
title_full |
A representative density profile of the North Greenland snowpack |
title_fullStr |
A representative density profile of the North Greenland snowpack |
title_full_unstemmed |
A representative density profile of the North Greenland snowpack |
title_sort |
representative density profile of the north greenland snowpack |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-10-1991-2016 https://tc.copernicus.org/articles/10/1991/2016/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tc-10-1991-2016 https://tc.copernicus.org/articles/10/1991/2016/ |
op_doi |
https://doi.org/10.5194/tc-10-1991-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
5 |
container_start_page |
1991 |
op_container_end_page |
2002 |
_version_ |
1766016367479226368 |