Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Hofstede, Coen Matthijs (2022): Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949168

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
To check the possible presence of a subglacial lake in Isunnguata Sermia, West Greenland we collected two 5 km perpendicular profiles of seismic reflection data. The data revealed a 1.9 km by 450 m and 50 m thick lens-shaped body at the bottom of a subglacial 190 m deep trough, most likely consisting of stratified consolidated sediments possibly overlain by dilatant till. Liquid water seems present at the northern and eastern flank of the subglacial trough. The bed on the northern side of the trough consists of unconsolidated, possibly water containing sediments, whereas on the southern side it consists of more consolidated material.
Supplement to:
Hofstede, Coen Matthijs; Wilhelms, Frank; Neckel, Niklas; Fritzsche, Diedrich; Beyer, Sebastian; Hubbard, Alun L; Pettersson, Rickard; Eisen, Olaf (2023): The Subglacial Lake That Wasn't There: Improved Interpretation From Seismic Data Reveals a Sediment Bedform at Isunnguata Sermia. Journal of Geophysical Research: Earth Surface, 128(10), e2022JF006850, https://doi.org/10.1029/2022JF006850
Project(s):
ice2sea (ice2sea)
Funding:
Seventh Framework Programme (FP7), grant/award no. 226375: ice2sea
Coverage:
Median Latitude: 67.029881 * Median Longitude: -48.624580 * South-bound Latitude: 67.011055 * West-bound Longitude: -48.680343 * North-bound Latitude: 67.055912 * East-bound Longitude: -48.567941
Date/Time Start: 2013-09-22T00:00:00 * Date/Time End: 2013-09-24T00:00:00
Minimum Elevation: 1353.0 m * Maximum Elevation: 1398.0 m
Event(s):
AWI-20130521 * Latitude Start: 67.034293 * Longitude Start: -48.680343 * Latitude End: 67.032728 * Longitude End: -48.567941 * Date/Time: 2013-09-22T00:00:00 * Elevation Start: 1363.0 m * Elevation End: 1398.0 m * Method/Device: Seismic reflection profile (SEISREFL) * Comment: along-flow profile
AWI-20130522 * Latitude Start: 67.055912 * Longitude Start: -48.621948 * Latitude End: 67.011055 * Longitude End: -48.626450 * Date/Time: 2013-09-23T00:00:00 * Elevation Start: 1367.0 m * Elevation End: 1353.0 m * Method/Device: Seismic reflection profile (SEISREFL) * Comment: across flow profile
AWI-20130532 * Latitude Start: 67.033000 * Longitude Start: -48.624600 * Latitude End: 67.012300 * Longitude End: -48.626200 * Date/Time: 2013-09-24T00:00:00 * Elevation Start: 1363.0 m * Elevation End: 1353.0 m * Method/Device: Seismic reflection profile (SEISREFL) * Comment: amplitude versus offset across-flow profile
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventHofstede, Coen Matthijs
2Profile IDProfile IDHofstede, Coen MatthijsProfile / dataset
3File contentContentHofstede, Coen Matthijs
4Binary ObjectBinaryHofstede, Coen Matthijs
5Binary Object (File Size)Binary (Size)BytesHofstede, Coen Matthijs
6CommentCommentHofstede, Coen MatthijsFigure in Hofstede et al. (2023)
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
46 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML