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Krumpen, Thomas; Haas, Christian; Hendricks, Stefan (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.970253

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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-XXVII/3 campaign in Sep, 2012 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:
Boetius, Antje (2013): The Expedition of the Research Vessel Polarstern to the Arctic in 2012 (ARK-XXVII/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 663, 166 pp, https://doi.org/10.2312/BzPM_0663_2013
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: 85.251407 * Median Longitude: 52.220781 * South-bound Latitude: 84.299452 * West-bound Longitude: 47.510891 * North-bound Latitude: 86.320068 * East-bound Longitude: 59.703566
Date/Time Start: 2012-09-26T11:35:42 * Date/Time End: 2012-09-27T11:39:43
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
10 datasets

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Datasets listed in this publication series

  1. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120926T1126_86.11_52.16_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970252
  2. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120926T1154_85.67_51.81_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970246
  3. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120926T1210_85.74_51.78_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970247
  4. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120926T1234_86.12_51.96_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970244
  5. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T0722_84.97_53.70_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970249
  6. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T0817_84.73_57.13_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970250
  7. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T0840_84.80_52.92_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970243
  8. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T0943_84.53_52.23_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970251
  9. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T1102_84.91_49.61_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970248
  10. Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the ARK-XXVII/3 campaign in Sep, 2012; profile ARK-XXVII-3_SBLA_20120927T1125_84.92_48.87_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970245