Laser altimeter data obtained over sea-ice during the PAMARCMIP campaign in Mar-Apr, 2011; profile PAMARCMIP_2011_SBLA_20110415T1724_84.96_-67.37_thr06_data_Vers5

Sea ice surface roughness data were obtained during the PAMARCMIP campaign in Mar-Apr, 2011 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) w...

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Bibliographic Details
Main Authors: Hendricks, Stefan, Haas, Christian, Krumpen, Thomas
Format: Dataset
Language:English
Published: PANGAEA 2024
Subjects:
DATE/TIME
HEIGHT above ground
Laser Altimeter
LATITUDE
Lead event (true/false)
LONGITUDE
PAMARCMIP_2011
PAMARCMIP_2011_SBLA_20110415T162459
POINT DISTANCE from start
POLAR 5
Ridge boundary
left
right
Ridge Height
maximum
Ridge Spacing
typical
Ridge width
SBLA
Sea Ice Surface Roughness
Single beam laser altimeter
processed with laser_Altimeter_Processing_VS5_06_20.py
Solar Pan-Arctic Measurements and Arctic Climate Model Intercomparison Project
Surface elevation
Time in seconds
Arctic
Sea ice
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.970793
https://doi.org/10.1594/PANGAEA.970793
Description
Summary:Sea ice surface roughness data were obtained during the PAMARCMIP campaign in Mar-Apr, 2011 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 20110415T1724. 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]

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