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Data Publisher for Earth & Environmental Science

Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the SIZONet campaign in Mar-Apr, 2013 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.970989

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

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Abstract:
Sea ice surface roughness data were obtained during the SIZONet campaign in Mar-Apr, 2013 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 (Unkown model). 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:
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: 71.881020 * Median Longitude: -155.695344 * South-bound Latitude: 71.572246 * West-bound Longitude: -156.272060 * North-bound Latitude: 72.129607 * East-bound Longitude: -155.222350
Date/Time Start: 2013-03-30T23:22:51 * Date/Time End: 2013-04-03T01:59:23
Size:
5 datasets

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