Hendricks, Stefan; Haas, Christian; Krumpen, Thomas: Laser altimeter data obtained over sea-ice during the PAMARCMIP campaign in Mar, 2018 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.969311 (dataset in review)
Abstract:
Sea ice surface roughness data were obtained during the PAMARCMIP campaign in Mar, 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-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 20180330T1047. 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]
Coverage:
Median Latitude: 82.498108 * Median Longitude: 3.398824 * South-bound Latitude: 82.371480 * West-bound Longitude: -12.147363 * North-bound Latitude: 82.510307 * East-bound Longitude: 19.104402
Date/Time Start: 2018-03-30T10:32:38 * Date/Time End: 2018-03-30T13:07:00
Event(s):
P5_210_PAMARCMIP_2018_SBLA_20180330T103238 * Latitude Start: 82.371480 * Longitude Start: -12.147363 * Latitude End: 82.503799 * Longitude End: -7.651658 * Date/Time Start: 2018-03-30T10:32:38 * Date/Time End: 2018-03-30T10:53:42 * Sensor URI: registry.o2a-data.de * Campaign: P5-210_PAMARCMIP_2018 * Basis: POLAR 5 * Method/Device: Single beam laser altimeter (SBLA)
P5_210_PAMARCMIP_2018_SBLA_20180330T105804 * Latitude Start: 82.507667 * Longitude Start: -6.704395 * Latitude End: 82.503525 * Longitude End: -3.803673 * Date/Time Start: 2018-03-30T10:58:04 * Date/Time End: 2018-03-30T11:11:04 * Sensor URI: registry.o2a-data.de * Campaign: P5-210_PAMARCMIP_2018 * Basis: POLAR 5 * Method/Device: Single beam laser altimeter (SBLA)
P5_210_PAMARCMIP_2018_SBLA_20180330T111417 * Latitude Start: 82.506477 * Longitude Start: -3.049716 * Latitude End: 82.502945 * Longitude End: 0.509655 * Date/Time Start: 2018-03-30T11:14:17 * Date/Time End: 2018-03-30T11:30:13 * Sensor URI: registry.o2a-data.de * Campaign: P5-210_PAMARCMIP_2018 * Basis: POLAR 5 * 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:
1008375 data points
Download Data (login required)
View dataset as HTML (shows only first 2000 rows)