Hendricks, Stefan; Haas, Christian; Krumpen, Thomas: Laser altimeter data obtained over sea-ice during the PAMARCMIP campaign in Apr, 2017 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.969315 (dataset in review)
Abstract:
Sea ice surface roughness data were obtained during the PAMARCMIP campaign in Apr, 2017 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 (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 specific dataset was obtained on 20170408T1956. It includes recorded altimeter readings, the derived surface elevation and width/height/spacing of detected pressure ridge sails. Note on data quality: 5.8 cm . File name: [DMS/PANGAEA Campaing Identifier] + [DEVICE] + [DATE/TIME] + [LAT/LON] + [Detection Threshold] + [Object] + [Version] + [Format]
Coverage:
Median Latitude: 72.385777 * Median Longitude: -147.884468 * South-bound Latitude: 70.020500 * West-bound Longitude: -167.495190 * North-bound Latitude: 75.191800 * East-bound Longitude: -127.405740
Date/Time Start: 2017-04-02T19:02:49 * Date/Time End: 2017-04-08T21:55:01
Event(s):
P5_205_PAMARCMIP_2017_SBLA_20170402T190249 * Latitude Start: 70.171272 * Longitude Start: -133.718170 * Latitude End: 70.756401 * Longitude End: -133.806490 * Date/Time Start: 2017-04-02T19:02:49 * Date/Time End: 2017-04-02T19:24:03 * Sensor URI: registry.o2a-data.de * Campaign: P5-205_PAMARCMIP_2017 (PAMARCMIP) * Basis: POLAR 5 * Method/Device: Single beam laser altimeter (SBLA)
P5_205_PAMARCMIP_2017_SBLA_20170402T192739 * Latitude Start: 70.853838 * Longitude Start: -133.814450 * Latitude End: 71.437237 * Longitude End: -133.908750 * Date/Time Start: 2017-04-02T19:27:39 * Date/Time End: 2017-04-02T19:49:17 * Sensor URI: registry.o2a-data.de * Campaign: P5-205_PAMARCMIP_2017 (PAMARCMIP) * Basis: POLAR 5 * Method/Device: Single beam laser altimeter (SBLA)
P5_205_PAMARCMIP_2017_SBLA_20170402T195259 * Latitude Start: 71.536554 * Longitude Start: -133.926960 * Latitude End: 71.898392 * Longitude End: -132.687440 * Date/Time Start: 2017-04-02T19:52:59 * Date/Time End: 2017-04-02T20:17:57 * Sensor URI: registry.o2a-data.de * Campaign: P5-205_PAMARCMIP_2017 (PAMARCMIP) * 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:
3672631 data points
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