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Haas, Christian; Hendricks, Stefan; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.971090

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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 PoleAirship campaign in Apr, 2007 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 (Mil MI-8). 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:
Etienne, Jean-Louis (2008): Total Pole Airship - An expedition led by Jean-Louis Etienne. www.jeanlouisetienne.com, 13 pp, hdl:10013/epic.39583.d001
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: 88.460185 * Median Longitude: -41.965949 * South-bound Latitude: 86.939961 * West-bound Longitude: -57.934804 * North-bound Latitude: 89.610481 * East-bound Longitude: 23.702222
Date/Time Start: 2007-04-16T04:12:53 * Date/Time End: 2007-04-16T04:25:25
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
9 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 PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1812_89.57_2.52_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971081
  2. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1826_89.37_-26.22_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971089
  3. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1841_89.09_-39.94_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971087
  4. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1852_88.84_-45.74_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971088
  5. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1903_88.54_-49.82_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971082
  6. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1916_88.22_-52.78_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971084
  7. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1931_87.88_-54.97_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971083
  8. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T1946_87.52_-56.53_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971086
  9. Haas, C; Hendricks, S; Krumpen, T (2024): Laser altimeter data obtained over sea-ice during the PoleAirship campaign in Apr, 2007; profile Total_Pole_Airship_2007_SBLA_20070416T2002_87.11_-57.68_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.971085