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PANGAEA.
Data Publisher for Earth & Environmental Science

Franke, Steven; Bons, Paul D; Streng, Kyra; Mundel, Felicitas; Binder, Tobias; Weikusat, Ilka; Bauer, Catherine C; Paden, John D; Dörr, Nils; Helm, Veit; Steinhage, Daniel; Eisen, Olaf; Jansen, Daniela (2023): NEGIS N1: Three-dimensional stratigraphic Horizon in the upstream region of the Northeast Greenland Ice Stream, Greenland ice sheet (7.3 ka) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955104, In: Franke, S et al. (2023): Three-dimensional anatomy of folded radar stratigraphy in polar ice sheets [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.954991

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Abstract:
The NEGIS N1 3D horizon is located at the onset of Greenlands Northeast Greenland Ice Stream and has an age of 7.3 ± 0.2 ka (thousand years). NEGIS N1 covers an area of ∼ 250 x 90 km and is centred at the EastGRIP drill site. The geometry of this 3D horizon shows a variety of complex and high number of folds, which are increasing in ice-flow direction. A number of short-wavelength folds (100-500 m long and with amplitudes up to 100 m high) extend almost from the ice divide downstream along the shear zone of NEGIS.
Keyword(s):
ice flow; ice sheets; ice stream; IRH; Polar 6; radio-echo sounding
Coverage:
Latitude: 75.633000 * Longitude: -35.992000
Event(s):
EGRIP-NOR-18 * Latitude: 75.633000 * Longitude: -35.992000 * Campaign: P6-211_EGRIP_NOR_2018 (EGRIP-NOR) * Basis: POLAR 6 * Method/Device: Multiple investigations (MULT)
Comment:
The 3D horizon and traced radar lines are provided in four different data formats:
1. ASCII format of the point cloud of the 3D horizons (meshes.dat) or traced radar lines (line.dat) in the xyz format, where x and y represent the coordinates and z the elevation in meters.
2. Digital Elevation Models (DEMs) in the GeoTIFF (.tif) and NetCDF (.nc) format of the 3D horizons (meshes). The DEMs have a cell size of 50 m.
3. GoCAD (Geological Objects: The 3D horizons (meshes) are stored in triangulated surfaces (.ts) and the traced radar lines as polylines (.pl).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1File typeFile typeBons, Paul D
2File contentContentBons, Paul D[Version][age (ka)][subset][geometry]
3Binary ObjectBinaryBons, Paul D
4Binary Object (Media Type)Binary (Type)Bons, Paul D
5Binary Object (File Size)Binary (Size)BytesBons, Paul D
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
18 data points

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