Laser altimeter data obtained over sea-ice during the ARK-XXII/2 campaign in Aug-Sep, 2007; profile ARK-XXII-2_SBLA_20070917T1034_84.21_110.64_thr06_data_Vers5

Sea ice surface roughness data were obtained during the ARK-XXII/2 campaign in Aug-Sep, 2007 with a Single Beam Laser Altimeter (SBLA) mounted inside an electromagnetic system (EM-Bird) towed at 10-30 m height above surface by a Helicopter (RV-Polarstern Helicopter). 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 20070917T1034. 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]

Identifier
DOI https://doi.org/10.1594/PANGAEA.971225
PID https://hdl.handle.net/10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.971237
Related Identifier References https://doi.org/10.2312/BzPM_0579_2008
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.971225
Provenance
Creator Hendricks, Stefan ORCID logo; Haas, Christian ORCID logo; Krumpen, Thomas 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 149605 data points
Discipline Earth System Research
Spatial Coverage (109.102W, 84.209S, 112.189E, 84.218N)
Temporal Coverage Begin 2007-09-17T10:33:30Z
Temporal Coverage End 2007-09-17T10:46:51Z