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
Always quote citation above when using data! You can download the citation in several formats below.
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.
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):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File type | File type | Bons, Paul D | |||
| 2 | File content | Content | Bons, Paul D | [Version][age (ka)][subset][geometry] | ||
| 3 | Binary Object | Binary | Bons, Paul D | |||
| 4 | Binary Object (Media Type) | Binary (Type) | Bons, Paul D | |||
| 5 | Binary Object (File Size) | Binary (Size) | Bytes | Bons, Paul D |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
18 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 File type | 2 Content | 3 Binary | 4 Binary (Type) | 5 Binary (Size) [Bytes] |
|---|---|---|---|---|
| ASCII | V001_7_3_ka_lines | NEGIS_N1_V001_7_3_ka_lines.dat | text/plain | 10.9 MBytes |
| ASCII | V001_7_3_ka_mesh | NEGIS_N1_V001_7_3_ka_mesh.dat | text/plain | 525.9 MBytes |
| DEM | V001_7_3_ka_mesh | NEGIS_N1_V001_7_3_ka_mesh.nc | application/x-netcdf | 64.3 MBytes |
| DEM | V001_7_3_ka_mesh | NEGIS_N1_V001_7_3_ka_mesh.tif | image/tiff | 64.2 MBytes |
| GoCAD | V001_7_3_ka_lines | NEGIS_N1_V001_7_3_ka_lines.pl | text/plain | 18.3 MBytes |
| GoCAD | V001_7_3_ka_mesh | NEGIS_N1_V001_7_3_ka_mesh.ts | text/plain | 1.5 GBytes |