Krumpen, Thomas; Haas, Christian; Hendricks, Stefan (2024): Laser altimeter data obtained over sea-ice during the Transdrift-XX campaign in Apr, 2012 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.970404
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Sea ice surface roughness data were obtained during the Transdrift-XX campaign in Apr, 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 (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 .
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 (in review): Smoother ice in a more dynamic Arctic: 30
years of airborne pressure ridge observations. Nature Climate Change
Related to:
Krumpen, Thomas (2017): Data report: EM-Bird ice thickness measurements in the Laptev Sea in April 2012 and 2008. hdl:10013/epic.51534.d001
Related code / software:
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: 74.382165 * Median Longitude: 127.209929 * South-bound Latitude: 73.919089 * West-bound Longitude: 126.386070 * North-bound Latitude: 74.769000 * East-bound Longitude: 128.596890
Date/Time Start: 2012-04-20T03:28:00 * Date/Time End: 2012-04-20T05:01:03
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets
Download Data
Datasets listed in this publication series
- Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the Transdrift-XX campaign in Apr, 2012; profile Transdrift-XX_SBLA_20120420T0323_74.37_126.67_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970328
- Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the Transdrift-XX campaign in Apr, 2012; profile Transdrift-XX_SBLA_20120420T0346_74.69_126.57_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970327
- Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the Transdrift-XX campaign in Apr, 2012; profile Transdrift-XX_SBLA_20120420T0412_74.41_127.37_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970330
- Krumpen, T; Haas, C; Hendricks, S (2024): Laser altimeter data obtained over sea-ice during the Transdrift-XX campaign in Apr, 2012; profile Transdrift-XX_SBLA_20120420T0436_74.06_128.24_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970329