Laser altimeter data obtained over sea-ice during the IceBird Summer campaign in Sep, 2020; profile P6_222_IceBird_MOSAiC_2020_SBLA_20200908T1108_83.40_7.32_thr06_data_Vers5

Sea ice surface roughness data were obtained during the IceBird Summer campaign in Sep, 2020 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 specific dataset was obtained on 20200908T1108. 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]

Identifier
DOI https://doi.org/10.1594/PANGAEA.970669
PID https://hdl.handle.net/10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.970670
Related Identifier References https://doi.org/10.48433/BzPM_0754_2021
Related Identifier References https://gitlab.awi.de/sitem/sbla_processing.git
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.970669
Provenance
Creator Krumpen, Thomas ORCID logo; Haas, Christian ORCID logo; Hendricks, Stefan ORCID logo
Publisher PANGAEA
Publication Year 2024
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 252195 data points
Discipline Earth System Research
Spatial Coverage (6.703W, 83.047S, 7.666E, 83.751N)
Temporal Coverage Begin 2020-09-08T11:11:25Z
Temporal Coverage End 2020-09-08T11:35:49Z