Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Haas Christian christian.haas@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christian-haas.html 0000-0002-7674-3500 Hendricks Stefan stefan.hendricks@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/stefan-hendricks.html 0000-0002-1412-3146 2024 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 dataset https://doi.org/10.1594/PANGAEA.970238 2024-07-12T10:44:54 https://doi.org/10.1594/PANGAEA.970241 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] Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 von Albedyll Luisa luisa.von.albedyll@awi.de 0000-0002-6768-0368 Bünger Hans Jakob buenger@driftnoise.com 0000-0001-9383-911X Castellani Giulia giulia.castellani85@gmail.com 0000-0001-6151-015X Hartmann Jörg Jorg.Hartmann@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/joerg-hartmann.html 0000-0001-5204-4652 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Hendricks Stefan stefan.hendricks@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/stefan-hendricks.html 0000-0002-1412-3146 Hutter Nils nils.hutter@awi.de https://www.awi.de/nc/ueber-uns/organisation/mitarbeiter/nils-hutter.html 0000-0003-3450-9422 Landy Jack jack.c.landy@uit.no 0000-0002-7372-1007 Lisovski Simeon simeon.lisovski@awi.de 0000-0002-6399-0035 Lüpkes Christof Christof.Luepkes@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christof-luepkes.html 0000-0001-6518-0717 Rohde Jan jan.rohde@awi.de Suhrhoff Mira Haas Christian christian.haas@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christian-haas.html 0000-0002-7674-3500 2025 Smoother sea ice with fewer pressure ridges in a more dynamic Arctic journal article Nature Climate Change https://doi.org/10.1038/s41558-024-02199-5 Schauer Ursula ursula.schauer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/ursula-schauer.html 2012 The Expedition of the Research Vessel Polarstern to the Arctic in 2011 (ARK-XXVI/3 - TransArc) report Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 649 https://doi.org/10.2312/BzPM_0649_2012 205 pp Electromagnetic induction sounding of sea-ice thickness / SBLA_Processing · GitLab https://gitlab.awi.de/sitem/sbla_processing.git Suhrhoff Mira 2021 Sea Ice Surface Roughness from Single Beam Laser Altimeter Measurements - Method Development and Comparison with Airborne Laser Scanner Profiles thesis Universität Trier hdl:10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82 134.95595 135.13818 84.003638 84.316081 135.00336102641367 84.15767691470509 2011-09-12T07:27:20 2011-09-12T07:41:52 horizontal profile ARK-XXVI-3_SBLA_20110912T072720 84.003638 135.13818 2011-09-12T07:27:20 84.316081 134.96558 2011-09-12T07:41:52 https://registry.o2a-data.de/items/6756 ARK-XXVI/3 PS78 TransArc https://doi.org/10.2312/BzPM_0649_2012 Schauer, Ursula 2011-08-05 2011-10-07 Tromsø, Norway Bremerhaven, Germany 20110148 hdl:10013/epic.37580.d001 http://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/ARK-XXVI-3.png hdl:10013/epic.44621.d001 doi:10.1594/PANGAEA.847954 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Single beam laser altimeter SBLA laser altimeters http://vocab.nerc.ac.uk/collection/L05/current/310/ 174868 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Date/Time Time in seconds Time sec s http://en.wikipedia.org/wiki/Time Time T http://dbpedia.org/resource/Time Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Time sec [s] LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Longitude POINT DISTANCE from start Dist m Length L http://dbpedia.org/resource/Length Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Dist [m] HEIGHT above ground Height m http://en.wikipedia.org/wiki/Height height http://purl.obolibrary.org/obo/PATO_0000119 Length L http://dbpedia.org/resource/Length Single beam laser altimeter SBLA laser altimeters http://vocab.nerc.ac.uk/collection/L05/current/310/ Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Height [m] Surface elevation Surf elev m Length L http://dbpedia.org/resource/Length Single beam laser altimeter SBLA laser altimeters http://vocab.nerc.ac.uk/collection/L05/current/310/ Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Height of the sea ice surface relative to the level ice Surf elev [m] Ridge height, maximum Ridge height max m maximum Length L http://dbpedia.org/resource/Length Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Higest point of a pressure ridge sail Ridge height max [m] Ridge boundary, left Ridge bound left m left http://purl.obolibrary.org/obo/PATO_0000366 Length L http://dbpedia.org/resource/Length Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Left boundary of identified pressure ridge sail Ridge bound left [m] Ridge boundary, right Ridge bound right m right http://purl.obolibrary.org/obo/PATO_0000367 Length L http://dbpedia.org/resource/Length Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Right boundary of identified pressure ridge sail Ridge bound right [m] Ridge width Ridge width m Length L http://dbpedia.org/resource/Length Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Width of pressure ridge sail Ridge width [m] Ridge spacing, typical Ridge spacing m Length L http://dbpedia.org/resource/Length Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Distance to preceding ridge sail Ridge spacing [m] Lead event (true/false) Lead event Single beam laser altimeter; processed with laser_Altimeter_Processing_VS5_06_20.py https://gitlab.awi.de/sitem/sbla_processing.git Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 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 Lead event CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Laser Altimeter Ridge Height Ridge Spacing Ridge Width Sea Ice Surface Roughness author102094 author10404 author10730 author24514 author24526 author29227 author36717 author41127 author59883 author62764 author67957 author78740 author78903 author88898 author91288 basis1 campaign34214 curlevel30 event3169825 geocode1599 geocode1600 geocode1601 geocode26097 geocode56349 journal16572 journal16650 license21 method16493 method16781 param26099 param45228 param45587 param45588 param528607 param528608 param528609 param528610 pi41127 ref124646 ref126769 ref127088 ref37112 term1073288 term1074366 term1074367 term2299507 term38492 term43863 term43975 term73759 term73760 term73761 term73762 term73763 topotype4