High-density crust record from firn cores B40 and B54, East Antarctica


Thin crusts in snow with high density contribute to firn stratigraphy and can have significant impact on firn ventilation as well as on remotely inferred properties like accumulation rate or surface mass balance. From snow profiles measured by means of microfocus X-ray computer tomography we created a unique dataset showing the spatial distribution of crusts in snow on the East Antarctic Plateau as well as in northern Greenland including a measure for their local variability. With this method, we are able to find also weak and oblique crusts, to count their frequency of occurrence and to measure the high-resolution density.

DOI https://doi.org/10.1594/PANGAEA.933926
Related Identifier https://doi.org/10.3389/feart.2021.630070
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.933926
Creator Weinhart, Alexander Helmut ORCID logo; Kipfstuhl, Sepp ORCID logo; Freitag, Johannes ORCID logo
Publisher PANGAEA
Publication Year 2021
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Publication Series of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (0.070W, -79.000S, 30.000E, -75.000N)
Temporal Coverage Begin 2013-01-01T00:00:00Z
Temporal Coverage End 2016-12-26T00:00:00Z