Static GPS measurements and elevation model in the vicinity of the EDML deep-drilling site

DOI

Interpretation of ice-core records requires accurate knowledge of the past and present surface topography and stress-strain fields. The European Project for Ice Coring in Antarctica (EPICA) drilling site (0.0684° E and 75.0025° S, 2891.7 m) in Dronning Maud Land, Antarctica, is located in the immediate vicinity of a transient and splitting ice divide. A digital elevation model is determined from the combination of kinematic GPS measurements with the GLAS12 data sets from the ICESat satellite. Based on a network of stakes, surveyed with static GPS, the velocity field around the EDML drilling site is calculated. The annual mean velocity magnitude of 12 survey points amounts to 0.74 m/a. Flow directions mainly vary according to their distance from the ice divide. Surface strain rates are determined from a pentagon-shaped stake network with one center point, close to the drilling site. The strain field is characterised by along flow compression, lateral dilatation, and vertical layer thinning.

Supplement to: Wesche, Christine; Eisen, Olaf; Oerter, Hans; Schulte, Daniel; Steinhage, Daniel (2007): Surface topography and ice flow in the vicinity of EDML deep-drilling site. Journal of Glaciology, 53(182), 442-448

Identifier
DOI https://doi.org/10.1594/PANGAEA.611331
Related Identifier IsSupplementTo https://doi.org/10.3189/002214307783258512
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.611331
Provenance
Creator Wesche, Christine ORCID logo; Eisen, Olaf (ORCID: 0000-0002-6380-962X); Oerter, Hans; Schulte, Daniel; Steinhage, Daniel
Publisher PANGAEA
Publication Year 2007
Funding Reference Fifth Framework Programme https://doi.org/10.13039/100011104 Crossref Funder ID EVK2-CT-2000-00077 https://cordis.europa.eu/project/id/EVK2-CT-2000-00077 European Project for Ice Coring in Antarctica; Fourth Framework Programme https://doi.org/10.13039/100011105 Crossref Funder ID ENV4980702 https://cordis.europa.eu/project/id/ENV4980702 European Project for Ice Coring in Antarctica; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 5472008 https://gepris.dfg.de/gepris/projekt/5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
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 2 datasets
Discipline Geosciences; Geospheric Sciences; Glaciology; Natural Sciences
Spatial Coverage (-0.066W, -75.056S, 0.704E, -74.839N)
Temporal Coverage Begin 1999-01-10T00:00:00Z
Temporal Coverage End 2006-01-17T00:00:00Z