de.pangaea.dataset970238 und de.pangaea.dataset970241 dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2025-07-15T15:16:37Z https://doi.pangaea.de/10.1594/PANGAEA.970238 <gco:CharacterString>Laser altimeter data obtained over sea-ice during the ARK-XXVI/3 campaign in Aug-Sep, 2011; profile ARK-XXVI-3_SBLA_20110912T0725_84.16_135.00_thr06_data_Vers5</gco:CharacterString> 2024-07-12T10:44:54 publication https://doi.org/10.1594/PANGAEA.970238 Krumpen, Thomas
Thomas.Krumpen@awi.de
https://orcid.org/0000-0001-6234-8756 information author Haas, Christian
christian.haas@awi.de
https://orcid.org/0000-0002-7674-3500 information author Hendricks, Stefan
stefan.hendricks@awi.de
https://orcid.org/0000-0002-1412-3146 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Sea ice surface roughness data were obtained during the ARK-XXVI/3 campaign in Aug-Sep, 2011 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 20110912T0725. 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] completed Krumpen, Thomas
Thomas.Krumpen@awi.de
https://orcid.org/0000-0001-6234-8756 information principalInvestigator Laser Altimeter Ridge Height Ridge Spacing Ridge Width Sea Ice Surface Roughness theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 134.95595 135.13818 84.003638 84.316081 2011-09-12T07:27:20 2011-09-12T07:41:52 DATE/TIME thematicClassification Time in seconds physicalMeasurement s s LATITUDE thematicClassification LONGITUDE thematicClassification POINT DISTANCE from start physicalMeasurement m m HEIGHT above ground physicalMeasurement Single beam laser altimeter m m Surface elevation physicalMeasurement Single beam laser altimeter; Height of the sea ice surface relative to the level ice m m Ridge height, maximum physicalMeasurement Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; Higest point of a pressure ridge sail m m Ridge boundary, left physicalMeasurement Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; Left boundary of identified pressure ridge sail m m Ridge boundary, right physicalMeasurement Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; Right boundary of identified pressure ridge sail m m Ridge width physicalMeasurement Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; Width of pressure ridge sail m m Ridge spacing, typical physicalMeasurement Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; Distance to preceding ridge sail m m Lead event (true/false) thematicClassification Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py; If set to 1, then EM-Bird based sea-ice thickness is below 0.2 m (lead/open water). Note that EM-Bird data is provided at a sampling rate of 10 Hz text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.970238?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: ARK-XXVI-3_SBLA_20110912T072720 * LATITUDE START: 84.003638 * LONGITUDE START: 135.138180 * LATITUDE END: 84.316081 * LONGITUDE END: 134.965580 * DATE/TIME START: 2011-09-12T07:27:20 * DATE/TIME END: 2011-09-12T07:41:52 * O2A Registry URI: https://registry.o2a-data.de/items/6756 * CAMPAIGN: ARK-XXVI/3 * BASIS: Polarstern * METHOD/DEVICE: Single beam laser altimeter 2011-09-12T07:27:20 Supplement to <gco:CharacterString>Smoother sea ice with fewer pressure ridges in a more dynamic Arctic</gco:CharacterString> 2025-01-01 publication https://doi.org/10.1038/s41558-024-02199-5 Krumpen, Thomas
Thomas.Krumpen@awi.de
https://orcid.org/0000-0001-6234-8756 information author von Albedyll, Luisa
luisa.von.albedyll@awi.de
https://orcid.org/0000-0002-6768-0368 information author Bünger, Hans Jakob
buenger@driftnoise.com
https://orcid.org/0000-0001-9383-911X information author Castellani, Giulia
giulia.castellani85@gmail.com
https://orcid.org/0000-0001-6151-015X information author Hartmann, Jörg
Jorg.Hartmann@awi.de
https://orcid.org/0000-0001-5204-4652 information author Helm, Veit
Veit.Helm@awi.de
https://orcid.org/0000-0001-7788-9328 information author Hendricks, Stefan
stefan.hendricks@awi.de
https://orcid.org/0000-0002-1412-3146 information author Hutter, Nils
nils.hutter@awi.de
https://orcid.org/0000-0003-3450-9422 information author Landy, Jack
jack.c.landy@uit.no
https://orcid.org/0000-0002-7372-1007 information author Lisovski, Simeon
simeon.lisovski@awi.de
https://orcid.org/0000-0002-6399-0035 information author Lüpkes, Christof
Christof.Luepkes@awi.de
https://orcid.org/0000-0001-6518-0717 information author Rohde, Jan
jan.rohde@awi.de
author Suhrhoff, Mira author Haas, Christian
christian.haas@awi.de
https://orcid.org/0000-0002-7674-3500 information author documentDigital Nature Climate Change Related to <gco:CharacterString>The Expedition of the Research Vessel Polarstern to the Arctic in 2011 (ARK-XXVI/3 - TransArc)</gco:CharacterString> 2012-01-01 publication https://doi.org/10.2312/BzPM_0649_2012 Schauer, Ursula
ursula.schauer@awi.de
https://www.awi.de/en/about-us/organisation/staff/single-view/ursula-schauer.html information author documentDigital Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 649 205 pp Related code / software <gco:CharacterString>Electromagnetic induction sounding of sea-ice thickness / SBLA_Processing · GitLab</gco:CharacterString> https://gitlab.awi.de/sitem/sbla_processing.git documentDigital Data processing report <gco:CharacterString>Sea Ice Surface Roughness from Single Beam Laser Altimeter Measurements - Method Development and Comparison with Airborne Laser Scanner Profiles</gco:CharacterString> 2021-01-01 publication hdl:10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82 Suhrhoff, Mira author documentDigital Universität Trier