NEEM to EGRIP traverse - density and δ¹⁸O of the surface snow (2 m profiles)

DOI

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 d18O 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.

Supplement to: Schaller, Christoph Florian; Freitag, Johannes; Kipfstuhl, Sepp; Laepple, Thomas; Steen-Larsen, Hans Christian; Eisen, Olaf (2016): A representative density profile of the North Greenland snowpack. The Cryosphere, 10(5), 1991-2002

Identifier
DOI https://doi.org/10.1594/PANGAEA.867875
Related Identifier IsSupplementTo https://doi.org/10.5194/tc-10-1991-2016
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.867875
Provenance
Creator Schaller, Christoph Florian ORCID logo; Freitag, Johannes ORCID logo; Kipfstuhl, Sepp ORCID logo; Laepple, Thomas ORCID logo; Steen-Larsen, Hans Christian ORCID logo; Eisen, Olaf (ORCID: 0000-0002-6380-962X)
Publisher PANGAEA
Publication Year 2016
Funding Reference Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID 07-VULN-09-001 North Greenland Eemian Ice Drilling
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (-51.069W, 75.629S, -35.986E, 77.444N)
Temporal Coverage Begin 2015-05-17T12:00:00Z
Temporal Coverage End 2015-05-26T12:00:00Z