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Haas, Christian; Hendricks, Stefan; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.969761

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Published: 2024-07-12 • DOI registered: 2024-08-27

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Abstract:
Sea ice surface roughness data were obtained during the ARK-XVII/2 campaign in Aug-Sep, 2001 with a Single Beam Laser Altimeter (SBLA) mounted inside an electromagnetic system (EM-Bird) towed at 10-30 m height above surface by a Helicopter (RV-Polarstern Helicopter). A method developed by Hibler (1972) was used to a) isolate the surface profile from low-frequency variations associated with the aircraft motion and b) to identify pressure ridge sails. The processing steps are described in https://epic.awi.de/id/eprint/56364/. We applied a ridge detection threshold of 0.6 m, which means that only sails higher 0.6 m are detected. Version and name of the processing routine: Laser_Altimeter_Processing_VS5_06_20.py (vers.5, Feb 22, 2024, https://gitlab.awi.de/sitem/sbla_processing.git). SBLA records (RIEGL - LD90) are provided at a sampling rate of 100 Hz. Sensor accuracy is 5 cm with a beam diameter at surface of 5.8 cm. This dataset includes recorded altimeter readings, the derived surface elevation and width/height/spacing of detected pressure ridge sails. Note on data quality: 5.8 cm .
Keyword(s):
Laser Altimeter; Ridge Height; Ridge Spacing; Ridge Width; Sea Ice Surface Roughness
Supplement to:
Krumpen, Thomas; von Albedyll, Luisa; Bünger, Hans Jakob; Castellani, Giulia; Hartmann, Jörg; Helm, Veit; Hendricks, Stefan; Hutter, Nils; Landy, Jack; Lisovski, Simeon; Lüpkes, Christof; Rohde, Jan; Suhrhoff, Mira; Haas, Christian (2025): Smoother sea ice with fewer pressure ridges in a more dynamic Arctic. Nature Climate Change, https://doi.org/10.1038/s41558-024-02199-5
Related to:
Thiede, Jörn (2002): POLARSTERN ARKTIS XVII/2 : Cruise Report: AMORE 2001 (Arctic Mid-Ocean Ridge Expedition). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 421, 390 pp, https://doi.org/10.2312/BzPM_0421_2002
Related code / software:
Electromagnetic induction sounding of sea-ice thickness / SBLA_Processing · GitLab
Data processing report:
Suhrhoff, Mira (2021): Sea Ice Surface Roughness from Single Beam Laser Altimeter Measurements - Method Development and Comparison with Airborne Laser Scanner Profiles [thesis]. Universität Trier, hdl:10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82
Coverage:
Median Latitude: 87.634681 * Median Longitude: 82.084343 * South-bound Latitude: 86.162506 * West-bound Longitude: 38.477250 * North-bound Latitude: 88.868638 * East-bound Longitude: 117.422480
Date/Time Start: 2001-08-31T00:01:26 * Date/Time End: 2001-09-20T00:01:26
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
11 datasets

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Datasets listed in this publication series

  1. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010831T1111_86.75_51.75_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969752
  2. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010831T1113_86.67_50.79_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969755
  3. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010903T1111_86.43_70.30_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969750
  4. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010903T1113_86.45_71.65_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969751
  5. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010905T1111_88.77_111.19_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969757
  6. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010905T1112_88.71_114.09_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969753
  7. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010905T1113_88.79_114.86_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969759
  8. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010908T1111_88.40_91.49_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969754
  9. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010908T1112_88.42_94.47_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969756
  10. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010908T1113_88.35_94.08_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969758
  11. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the ARK-XVII/2 campaign in Aug-Sep, 2001; profile ARK-XVII-2_SBLA_20010920T1112_86.26_38.78_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.969760