Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Institute of Environmental Physics, University of Bremen IUP https://ror.org/04ers2y35 Spreen Gunnar gunnar.spreen@uni-bremen.de https://seaice.uni-bremen.de/gunnar-spreen/ 0000-0003-0165-8448 Institute of Environmental Physics, University of Bremen IUP https://ror.org/04ers2y35 Krumpen Thomas Thomas.Krumpen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-krumpen.html 0000-0001-6234-8756 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Neudert Mara mneudert@awi.de Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2026 GEM-2 total ice thickness estimates of the ice floe transect during station PS149_25-1 during the PS149 CONTRASTS expedition (July-August 2025) dataset https://doi.pangaea.de/10.1594/PANGAEA.996933 2026-09-02T09:01:53 https://doi.pangaea.de/10.1594/PANGAEA.996907 This dataset contains the total ice thickness estimates from a walk across the sea ice floe (called long transect) during ice station PS149_25-1 (floe 2b) of the PS149 CONTRASTS expedition. The long transect was traversed across the ice floe to obtain statistically representative distributions of ice thickness. The transect was marked with flags at its corner points to ensure that a similar track was measured during repeated visits to the ice floe. A Geophex Ltd. GEM2-730 instrument was used. Total sea ice thickness refers to the distance between the instrument and the ice–ocean interface. Accordingly, if present, snow / surface scattering layer (SSL) or melt pond depth must be subtracted from this total thickness to obtain the actual sea ice thickness estimate. The snow / SSL and melt pond depths were measured along the same transect track with a MagnaProbe and can be found in the other dataset of this collection: https://doi.pangaea.de/10.1594/PANGAEA.996934. Since the GEM and MagnaProbe measurements at this station were conducted on two consecutive days, ice floe drift between the surveys would make precise spatio-temporal co-location of the datasets unreliable. Therefore, the measurements are provided as separate datasets without any drift correction. However, both were collected along the same marked transect track. The measurements of all other PS149 ice stations are co-located and available here: doi:10.1594/PANGAEA.996908. More detailed explanations about the data processing and the co-location of both measurements can be found in the comment section of the dataset collection: https://doi.pangaea.de/10.1594/PANGAEA.996907. Nicolaus Marcel marcel.nicolaus@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/marcel-nicolaus.html 0000-0003-0903-1746 2026 The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025 report Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 808 https://doi.org/10.57738/BZPM_0808_2026 382 pp 18.8822422 18.9907513 83.7300568 83.738121 18.932838406768564 83.73387882437332 2025-08-01T14:38:22 2025-08-01T15:46:09 AC3 Arctic Amplification https://gepris.dfg.de/project/268020496 Leipzig Institute for Meteorology, University of Leipzig LIM http://www.uni-leipzig.de/~meteo/en/index.php https://ror.org/03s7gtk40 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://doi.org/10.13039/501100003207 AWI_PS149_01 Sea Ice Physics (CONTRASTS) German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 268020496 TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms https://gepris.dfg.de/project/268020496 PS149_25-1-gem2-730-iup-01 File 088 83.73812 18.89275333 2025-08-01T14:38:00 83.73705333 18.94591367 2025-08-01T15:46:00 PS149 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Broadband electromagnetic sensor BES https://registry.o2a-data.de/items/12738 Not logged in DShip. Long transect. 157054 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 Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Longitude Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 1525Hz in-phase response Sea ice+snow thick [m] (from 1525Hz in-phase response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 1525Hz quadrature response Sea ice+snow thick [m] (from 1525Hz quadrature response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 5325Hz in-phase response Sea ice+snow thick [m] (from 5325Hz in-phase response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 5325Hz quadrature response Sea ice+snow thick [m] (from 5325Hz quadrature response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 18325Hz in-phase response Sea ice+snow thick [m] (from 18325Hz in-phase response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 18325Hz quadrature response Sea ice+snow thick [m] (from 18325Hz quadrature response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 63025Hz in-phase response Sea ice+snow thick [m] (from 63025Hz in-phase response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 63025Hz quadrature response Sea ice+snow thick [m] (from 63025Hz quadrature response) Sea ice and snow thickness Sea ice+snow thick m sea ice http://purl.obolibrary.org/obo/ENVO_00002200 Length L http://dbpedia.org/resource/Length Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X from 93075Hz in-phase response Sea ice+snow thick [m] (from 93075Hz in-phase response) Arctic CONTRASTS expedition electromagnetic induction GEM-2 Geophex magnaprobe melt pond depth ocean PS149 RV Polarstern Sea ice Sea ice thickness snow depth author118204 author30475 author41127 author52094 author99249 award17 award4219 basis1 campaign3395020 campaign51147 event3328068 funder20472 funder32 geocode1599 geocode1600 geocode1601 inst20386 inst21208 inst32 journal16572 license21 method12260 method13701 param501894 pi118204 project4230 ref139667 term1079020 term37889 term40892 term43863 term43975 term47302 term47389 term49379 term50444 term51970 term52691 term69560 term69561 term73544 term77427 term77467 term77535 term78517