Haas, Christian; Hendricks, Stefan; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the IceBird Summer campaign in Aug, 2023; profile P5_242_IceBird_Summer_2023_SBLA_20230818T2007_83.05_-49.22_thr06_data_Vers5 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.970574, In: Haas, Christian; Hendricks, Stefan; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the IceBird Summer campaign in Aug, 2023 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.970582
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2024-07-12 • DOI registered: 2024-08-27
Abstract:
Sea ice surface roughness data were obtained during the IceBird Summer campaign in Aug, 2023 with a Single Beam Laser Altimeter (SBLA) mounted inside an electromagnetic system (EM-Bird) towed at 10-30 m height above surface by an Airplane (Basler BT-67, Polar-5). 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 (ASTECH - LDM) are provided at a sampling rate of 100 Hz. Sensor accuracy is 2 cm with a beam diameter at surface of 6.3 cm. This specific dataset was obtained on 20230818T2007. It includes recorded altimeter readings, the derived surface elevation and width/height/spacing of detected pressure ridge sails. Note on data quality: 6.3 cm . File name: [DMS/PANGAEA Campaing Identifier] + [DEVICE] + [DATE/TIME] + [LAT/LON] + [Detection Threshold] + [Object] + [Version] + [Format]
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:
Haas, Christian; Happ, Lena; Landy, Jack; Krumpen, Thomas (2024): Campaign Report: IceBird Summer 2023 - Polar 5. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, hdl:10013/epic.25d7978c-89fc-4c64-b853-8276ef96b437
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: 83.048079 * Median Longitude: -49.220957 * South-bound Latitude: 82.582039 * West-bound Longitude: -50.333355 * North-bound Latitude: 83.485837 * East-bound Longitude: -48.091897
Date/Time Start: 2023-08-18T20:08:51 * Date/Time End: 2023-08-18T20:35:15
Event(s):
P5_242_IceBird_Summer_2023_SBLA_20230818T200851 * Latitude Start: 82.582039 * Longitude Start: -50.333355 * Latitude End: 83.485837 * Longitude End: -48.091897 * Date/Time Start: 2023-08-18T20:08:51 * Date/Time End: 2023-08-18T20:35:15 * O2A Registry URI: registry.o2a-data.de * Campaign: P5-242_IceBird_Summer_2023 (IceBird) * Basis: POLAR 5 * Method/Device: Single beam laser altimeter (SBLA)
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
302186 data points
Download Data
View dataset as HTML (shows only first 2000 rows)