Weikusat, Ilka; Stoll, Nicolas; Eichler, Jan; Kerch, Johanna; Kleitz, Ina; Jansen, Daniela; Shigeyama, Wataru; Homma, Tomoyuki; Bayer, Maddalena; Götz, Pia; Kuiper, Ernst-Jan N; Westhoff, Julien; Saruya, Tomotaka; Franke, Steven; Hellmann, Sebastian; Rathmann, Nicolas; Wallis, David; Cook, Eliza; Kipfstuhl, Sepp (2025): Crystal c-axes (fabric analyser G50) of ice core samples (horizontal thin sections) collected from the polar ice core EGRIP, 111-2664 m depth [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984221, In: Weikusat, Ilka; Stoll, Nicolas; Kerch, Johanna; Eichler, Jan; Jansen, Daniela; Darányi, Kyra; Kleitz, Ina; Shigeyama, Wataru; Homma, Tomoyuki; Bayer, Maddalena; Götz, Pia; Kuiper, Ernst-Jan N; Saruya, Tomotaka; Franke, Steven; Hellmann, Sebastian; Rathmann, Nicholas Mossor; Wallis, David; Cook, Eliza; Kipfstuhl, Sepp (2025): Crystal-preferred orientation data from the polar ice core EGRIP (vertical and horizontal thin section data, raw and processed), 111-2664 m depth, 2017 - 2023 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.983953
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-08-08 • DOI registered: 2025-08-08
Abstract:
Polarisation microscopy image data from horizontal thin sections from the EGRIP ice core were acquired with a Fabric Analyser (G50, Russell-Head Instruments). 66 sections from 18 bags were measured in the field camp at EGRIP, Greenland, during field seasons 2017, 2018, 2019, 2022, and 2023.
A bag refers to an ice core segment of 55 cm length which is typically cut into six pieces of 9 cm length from which thin sections (approx. 250-300 µm thick, max. 7x9 cm²) are prepared using a manual sledge microtome. Horizontal sections were prepared only from ice core volume samples (75% of ice core from bottom of approx. every 200th bag, corresponding to depth of 6th sample in bag). Sample folders are named according to the convention EGRIP<bag>_<section>-<cut>_<additional-info>. Data are not available between 2121 and 2417 m.
Each section folders contains a manually prepared mask image (background.bmp) in preparation for image processing to exclude image artefacts from the sample margins. The resolution of the image data is 500 px/cm. Quality images are provided by the instrument as well as images showing crystal c-axis orientation per pixel. The binary file (data.cis) contains all relevant information to evaluate the section with regard to the crystal-preferred orientation (CPO) of the ice thin sections.
Related to:
Stoll, Nicolas; Weikusat, Ilka; Jansen, Daniela; Bons, Paul D; Darányi, Kyra; Westhoff, Julien; Llorens, Maria-Gema; Wallis, David; Eichler, Jan; Saruya, Tomotaka; Homma, Tomoyuki; Rasmussen, Sune Olander; Sinnl, Giulia; Svensson, Anders M; Drury, Martyn R; Wilhelms, Frank; Kipfstuhl, Sepp; Dahl-Jensen, Dorthe; Kerch, Johanna (2025): Linking crystallographic orientation and ice stream dynamics: evidence from the EastGRIP ice core. The Cryosphere, 19(9), 3805-3830, https://doi.org/10.5194/tc-19-3805-2025
Project(s):
East Greenland Ice-core Project (EGRIP)
Glaciology @ AWI (AWI_Glac)
Coverage:
Latitude: 75.630000 * Longitude: -35.980000
Minimum DEPTH, ice/snow: 111.56 m * Maximum DEPTH, ice/snow: 2663.10 m
Event(s):
Comment:
It is likely that samples 1208_6-top and 1400_6-top were accidentally permuted during data acquisition.
Volume sample 400_6 was sliced in 34 horizontal sections.
The depth of sample 4843_break_hor is approximate.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, ice/snow | Depth ice/snow | m | Weikusat, Ilka | Geocode | |
| 2 | Sample code/label | Sample label | Weikusat, Ilka | |||
| 3 | Binary Object | Binary | Weikusat, Ilka | |||
| 4 | Binary Object (File Size) | Binary (Size) | Bytes | Weikusat, Ilka |
Change history:
2025-09-04T07:15:35 – Correction: Author Julien Westhoff was added after being unintentionally omitted.
License:
Creative Commons Attribution-ShareAlike 4.0 International (CC-BY-SA-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
132 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 Depth ice/snow [m] | 2 Sample label | 3 Binary | 4 Binary (Size) [Bytes] |
|---|---|---|---|
| 111.56 | EGRIP0203_6-top_volume_horizontal | EGRIP0203_6-top_volume_horizontal_20.zip | 511.4 MBytes |
| 111.65 | EGRIP0203_6-bottom_volume_horizontal | EGRIP0203_6-bottom_volume_horizontal_20.zip | 525.6 MBytes |
| 219.91 | EGRIP0400_6-a1_volume_horizontal | EGRIP0400_6-a1_volume_horizontal_20.zip | 122.1 MBytes |
| 219.91 | EGRIP0400_6-a2_volume_horizontal | EGRIP0400_6-a2_volume_horizontal_20.zip | 122.3 MBytes |
| 219.91 | EGRIP0400_6-a3_volume_horizontal | EGRIP0400_6-a3_volume_horizontal_20.zip | 134.1 MBytes |
| 219.92 | EGRIP0400_6-a4_volume_horizontal | EGRIP0400_6-a4_volume_horizontal_20.zip | 109 MBytes |
| 219.92 | EGRIP0400_6-a5_volume_horizontal | EGRIP0400_6-a5_volume_horizontal_20.zip | 127.3 MBytes |
| 219.92 | EGRIP0400_6-a6_volume_horizontal | EGRIP0400_6-a6_volume_horizontal_20.zip | 118.8 MBytes |
| 219.93 | EGRIP0400_6-a7_volume_horizontal | EGRIP0400_6-a7_volume_horizontal_20.zip | 108.8 MBytes |
| 219.93 | EGRIP0400_6-a9_volume_horizontal | EGRIP0400_6-a9_volume_horizontal_20.zip | 138.6 MBytes |
| 219.93 | EGRIP0400_6-b1_volume_horizontal | EGRIP0400_6-b1_volume_horizontal_20.zip | 121.8 MBytes |
| 219.93 | EGRIP0400_6-b2_volume_horizontal | EGRIP0400_6-b2_volume_horizontal_20.zip | 121 MBytes |
| 219.94 | EGRIP0400_6-b3_volume_horizontal | EGRIP0400_6-b3_volume_horizontal_20.zip | 125.6 MBytes |
| 219.94 | EGRIP0400_6-b4_volume_horizontal | EGRIP0400_6-b4_volume_horizontal_20.zip | 120.9 MBytes |
| 219.94 | EGRIP0400_6-b5_volume_horizontal | EGRIP0400_6-b5_volume_horizontal_20.zip | 110.2 MBytes |
| 219.94 | EGRIP0400_6-b6_volume_horizontal | EGRIP0400_6-b6_volume_horizontal_20.zip | 112.5 MBytes |
| 219.95 | EGRIP0400_6-b7_volume_horizontal | EGRIP0400_6-b7_volume_horizontal_20.zip | 109.7 MBytes |
| 219.95 | EGRIP0400_6-b8_volume_horizontal | EGRIP0400_6-b8_volume_horizontal_20.zip | 107.4 MBytes |
| 219.95 | EGRIP0400_6-b9_volume_horizontal | EGRIP0400_6-b9_volume_horizontal_20.zip | 121.9 MBytes |
| 219.95 | EGRIP0400_6-c1_volume_horizontal | EGRIP0400_6-c1_volume_horizontal_20.zip | 111.9 MBytes |
| 219.96 | EGRIP0400_6-c2_volume_horizontal | EGRIP0400_6-c2_volume_horizontal_20.zip | 125.4 MBytes |
| 219.96 | EGRIP0400_6-c3_volume_horizontal | EGRIP0400_6-c3_volume_horizontal_20.zip | 130.7 MBytes |
| 219.96 | EGRIP0400_6-c4_volume_horizontal | EGRIP0400_6-c4_volume_horizontal_20.zip | 119.9 MBytes |
| 219.96 | EGRIP0400_6-c5_volume_horizontal | EGRIP0400_6-c5_volume_horizontal_20.zip | 122.7 MBytes |
| 219.97 | EGRIP0400_6-c6_volume_horizontal | EGRIP0400_6-c6_volume_horizontal_20.zip | 111.7 MBytes |
| 219.97 | EGRIP0400_6-c7_volume_horizontal | EGRIP0400_6-c7_volume_horizontal_20.zip | 108.7 MBytes |
| 219.97 | EGRIP0400_6-c8_volume_horizontal | EGRIP0400_6-c8_volume_horizontal_20.zip | 120.4 MBytes |
| 219.97 | EGRIP0400_6-c9_volume_horizontal | EGRIP0400_6-c9_volume_horizontal_20.zip | 115 MBytes |
| 219.98 | EGRIP0400_6-d1_volume_horizontal | EGRIP0400_6-d1_volume_horizontal_20.zip | 115.4 MBytes |
| 219.98 | EGRIP0400_6-d2_volume_horizontal | EGRIP0400_6-d2_volume_horizontal_20.zip | 115.4 MBytes |
| 219.98 | EGRIP0400_6-d3_volume_horizontal | EGRIP0400_6-d3_volume_horizontal_20.zip | 115 MBytes |
| 219.98 | EGRIP0400_6-d4_volume_horizontal | EGRIP0400_6-d4_volume_horizontal_20.zip | 123.1 MBytes |
| 219.99 | EGRIP0400_6-d5_volume_horizontal | EGRIP0400_6-d5_volume_horizontal_20.zip | 113.9 MBytes |
| 219.99 | EGRIP0400_6-d6_volume_horizontal | EGRIP0400_6-d6_volume_horizontal_20.zip | 113.8 MBytes |
| 219.99 | EGRIP0400_6-d7_volume_horizontal | EGRIP0400_6-d7_volume_horizontal_20.zip | 133.2 MBytes |
| 219.99 | EGRIP0400_6-d8_volume_horizontal | EGRIP0400_6-d8_volume_horizontal_20.zip | 123.1 MBytes |
| 329.36 | EGRIP0599_6-top_volume_horizontal | EGRIP0599_6-top_volume_horizontal_20.zip | 366.4 MBytes |
| 329.45 | EGRIP0599_6-bottom_volume_horizontal | EGRIP0599_6-bottom_volume_horizontal_20.zip | 351.4 MBytes |
| 460.26 | EGRIP0837_6-top_volume_horizontal | EGRIP0837_6-top_volume_horizontal_20.zip | 358.1 MBytes |
| 460.35 | EGRIP0837_6-bottom_volume_horizontal | EGRIP0837_6-bottom_volume_horizontal_20.zip | 368.6 MBytes |
| 549.91 | EGRIP1000_6-top_volume_horizontal | EGRIP1000_6-top_volume_horizontal_20.zip | 352.6 MBytes |
| 550.00 | EGRIP1000_6-bottom_volume_horizontal | EGRIP1000_6-bottom_volume_horizontal_20.zip | 337 MBytes |
| 664.31 | EGRIP1208_6-top_volume_horizontal | EGRIP1208_6-top_volume_horizontal_20.zip | 463.7 MBytes |
| 664.40 | EGRIP1208_6-bottom_volume_horizontal | EGRIP1208_6-bottom_volume_horizontal_20.zip | 424.8 MBytes |
| 769.91 | EGRIP1400_6-top_volume_horizontal | EGRIP1400_6-top_volume_horizontal_20.zip | 433.3 MBytes |
| 770.00 | EGRIP1400_6-bottom_volume_horizontal | EGRIP1400_6-bottom_volume_horizontal_20.zip | 451.9 MBytes |
| 883.21 | EGRIP1606_6-top_volume_horizontal | EGRIP1606_6-top_volume_horizontal_20.zip | 501.6 MBytes |
| 883.30 | EGRIP1606_6-bottom_volume_horizontal | EGRIP1606_6-bottom_volume_horizontal_20.zip | 391.7 MBytes |
| 990.46 | EGRIP1801_6-top_volume_horizontal | EGRIP1801_6-top_volume_horizontal_20.zip | 436.5 MBytes |
| 990.55 | EGRIP1801_6-bottom_volume_horizontal | EGRIP1801_6-bottom_volume_horizontal_20.zip | 431.8 MBytes |
| 1221.46 | EGRIP2221_6-top_volume_horizontal | EGRIP2221_6-top_volume_horizontal_20.zip | 430.5 MBytes |
| 1221.55 | EGRIP2221_6-bottom_volume_horizontal | EGRIP2221_6-bottom_volume_horizontal_20.zip | 432.9 MBytes |
| 1429.91 | EGRIP2600_6-top_volume_horizontal | EGRIP2600_6-top_volume_horizontal_20.zip | 449.2 MBytes |
| 1430.00 | EGRIP2600_6-bottom_volume_horizontal | EGRIP2600_6-bottom_volume_horizontal_20.zip | 479.6 MBytes |
| 1761.01 | EGRIP3202_6-top_volume_horizontal | EGRIP3202_6-top_volume_horizontal_20.zip | 486.8 MBytes |
| 1761.10 | EGRIP3202_6-bottom_volume_horizontal | EGRIP3202_6-bottom_volume_horizontal_20.zip | 441.4 MBytes |
| 1869.91 | EGRIP3400_6-top_volume_horizontal | EGRIP3400_6-top_volume_horizontal_20.zip | 443.2 MBytes |
| 1978.81 | EGRIP3598_6-top_volume_horizontal | EGRIP3598_6-top_volume_horizontal_20.zip | 445 MBytes |
| 1978.90 | EGRIP3598_6-bottom_volume_horizontal | EGRIP3598_6-bottom_volume_horizontal_20.zip | 468.7 MBytes |
| 2089.36 | EGRIP3799_6-top_volume_horizontal | EGRIP3799_6-top_volume_horizontal_20.zip | 467.9 MBytes |
| 2089.45 | EGRIP3799_6-bottom_volume_horizontal | EGRIP3799_6-bottom_volume_horizontal_20.zip | 528.5 MBytes |
| 2419.91 | EGRIP4400_6-top_volume_horizontal | EGRIP4400_6-top_volume_horizontal_20.zip | 416.7 MBytes |
| 2420.00 | EGRIP4400_6-bottom_volume_horizontal | EGRIP4400_6-bottom_volume_horizontal_20.zip | 412.6 MBytes |
| 2529.91 | EGRIP4600_6-top_volume_horizontal | EGRIP4600_6-top_volume_horizontal_20.zip | 415.9 MBytes |
| 2530.00 | EGRIP4600_6-bottom_volume_horizontal | EGRIP4600_6-bottom_volume_horizontal_20.zip | 514.2 MBytes |
| 2663.10 | EGRIP4843_break_horizontal | EGRIP4843_break_horizontal_20.zip | 531.7 MBytes |