Krumpen, Thomas; Haas, Christian; Hendricks, Stefan: Laser altimeter data obtained over sea-ice during the IceBird Summer campaign in Jul-Aug, 2018 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.969297 (dataset in review)
Abstract:
Sea ice surface roughness data were obtained during the IceBird Summer campaign in Jul-Aug, 2018 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-6). 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 dataset 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]
Coverage:
Median Latitude: 84.781921 * Median Longitude: -44.119797 * South-bound Latitude: 82.654788 * West-bound Longitude: -101.981450 * North-bound Latitude: 87.804042 * East-bound Longitude: 10.113610
Date/Time Start: 2018-07-31T13:56:46 * Date/Time End: 2018-08-13T13:53:42
Event(s):
P6_211_ASIMBO_2018_SBLA_20180731T135646 * Latitude Start: 83.106421 * Longitude Start: -63.610795 * Latitude End: 84.070579 * Longitude End: -66.360756 * Date/Time Start: 2018-07-31T13:56:46 * Date/Time End: 2018-07-31T14:29:06 * Sensor URI: registry.o2a-data.de * Campaign: P6-211_ASIMBO_2018 (TIFAX, P6-213_ASIMBO_2018) * Basis: POLAR 6 * Method/Device: Single beam laser altimeter (SBLA)
P6_211_ASIMBO_2018_SBLA_20180731T143915 * Latitude Start: 84.321136 * Longitude Start: -66.493370 * Latitude End: 84.649461 * Longitude End: -61.428402 * Date/Time Start: 2018-07-31T14:39:15 * Date/Time End: 2018-07-31T14:59:46 * Sensor URI: registry.o2a-data.de * Campaign: P6-211_ASIMBO_2018 (TIFAX, P6-213_ASIMBO_2018) * Basis: POLAR 6 * Method/Device: Single beam laser altimeter (SBLA)
P6_211_ASIMBO_2018_SBLA_20180731T152448 * Latitude Start: 84.726466 * Longitude Start: -56.845879 * Latitude End: 83.842291 * Longitude End: -59.533032 * Date/Time Start: 2018-07-31T15:24:48 * Date/Time End: 2018-07-31T15:53:25 * Sensor URI: registry.o2a-data.de * Campaign: P6-211_ASIMBO_2018 (TIFAX, P6-213_ASIMBO_2018) * Basis: POLAR 6 * Method/Device: Single beam laser altimeter (SBLA)
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
8504213 data points
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