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 co-located with MagnaProbe snow and melt pond depth measurements of station PS149_21-1 during the PS149 CONTRASTS expedition (July-August 2025) dataset https://doi.pangaea.de/10.1594/PANGAEA.997014 2026-09-02T09:14:46 https://doi.pangaea.de/10.1594/PANGAEA.996908 This dataset contains measurements of snow/SSL (surface scattering layer) depth or melt pond depth co-located with total ice thickness estimates from a walk across the ice floe (called long transect) conducted during the ice station indicated in the title during the PS149 CONTRASTS expedition. 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 GPS-equipped MagnaProbe was used to measure snow/SSL and melt pond depth, while a Geophex Ltd. GEM-2-730 instrument was used to measure total sea ice thickness. Total sea ice thickness refers to the distance between the instrument and the ice–ocean interface. Accordingly, if present, snow/SSL or melt pond depth must be subtracted from this total thickness to obtain the actual sea ice thickness estimate. 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: doi:10.1594/PANGAEA.996908. 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 27.05634909011356 27.09992046548005 82.53010448894265 82.53540189060962 27.08373566170001 82.53300357021556 2025-07-27T14:32:01 2025-07-27T15:30:23 -3972.5 -3832.2 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_21-1 Ice Station 1b 82.700972 27.118502 -3972.5 2025-07-25T16:30:00 82.489715 28.417981 -3832.2 2025-07-28T16:40:09 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 Ice station ICE https://registry.o2a-data.de/items/8891 # Ice Station 1b PS149_21-1-gem2-730-iup-04 File 075 82.53471 27.04675167 2025-07-27T14:21:00 82.52988528 27.12521361 2025-07-27T15:44:00 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 Hyperspectral camera HSCAM https://registry.o2a-data.de/items/12738 Not logged in DShip. Long transect. PS149_21-1-magnaprobe-marcel-03 84.9844983 14.001518333 2025-07-27T14:21:00 84.9655934 14.07817833 2025-07-27T15:46:00 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 Magnaprobe MAGNA https://registry.o2a-data.de/items/4888 Not logged in DShip. Long transect on floe 1b together with GEM2 6885 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 Mean timestamp of MagnaProbe measurements contributing to this spatial bin, in UTC. Date/Time (Mean timestamp of MagnaProbe ...) LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Longitude of the 1 m spatial bin center. Longitude (Longitude of the 1 m spatial ...) LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Latitude of the 1 m spatial bin center. Latitude (Latitude of the 1 m spatial b...) Easting, Antarctic Polar Stereographic (EPSG:3031) EPSG:3031 east m Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Easting of the bin center EPSG:3031 east [m] (Easting of the bin center) Northing, Antarctic Polar Stereographic (EPSG:3031) EPSG:3031 north m Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Northing of the bin center EPSG:3031 north [m] (Northing of the bin center) Snow depth Snow depth m Length L http://dbpedia.org/resource/Length Magnaprobe MAGNA Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Mean snow depth from MagnaProbe measurements co-located within this bin. Snow depth [m] (Mean snow depth from MagnaPro...) Melt pond depth Melt pond depth m http://commons.wikimedia.org/w/index.php?title=Image:Ice-floe_params_hg.png Length L http://dbpedia.org/resource/Length Magnaprobe MAGNA Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Mean melt pond depth from MagnaProbe measurements co-located within this bin. Melt pond depth [m] (Mean melt pond depth from Mag...) Distance Distance m distance http://purl.obolibrary.org/obo/PATO_0000040 Length L http://dbpedia.org/resource/Length Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Mean spatial separation between matched GEM and MagnaProbe point pairs contributing to this bin. Distance [m] (Mean spatial separation betwe...) Number of observations NOBS # number Abundance or Count Ringel Maximilian Harald mringel@uni-bremen.de 0000-0002-0600-135X Mean number of GEM measurements averaged per MagnaProbe point within this bin. NOBS [#] (Mean number of GEM measuremen...) 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 1525 Hz in-phase response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 1525 Hz in-phase respons...) 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 1525 Hz quadrature response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 1525 Hz quadrature respo...) 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 5325 Hz in-phase response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 5325 Hz in-phase respons...) 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 5325 Hz quadrature response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 5325 Hz quadrature respo...) 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 18325 Hz in-phase response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 18325 Hz in-phase respon...) 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 18325 Hz quadrature response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 18325 Hz quadrature resp...) 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 63025 Hz in-phase response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 63025 Hz in-phase respon...) 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 63025 Hz quadrature response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 63025 Hz quadrature resp...) 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 93075 Hz in-phase response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 93075 Hz in-phase respon...) 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 93075 Hz quadrature response; mean sea ice + snow/melt pond thickness Sea ice+snow thick [m] (from 93075 Hz quadrature resp...) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels Arctic co-located CONTRASTS expedition GEM-2 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 curlevel30 event3306355 event3327914 event3327941 funder20472 funder32 geocode1599 geocode1600 geocode1601 geocode8128 inst20386 inst21208 inst32 journal16572 license21 method11166 method12285 method12523 method13701 param26173 param501894 param5124 param534290 param567604 param567605 param92436 pi118204 project4230 ref139667 term1073628 term1079020 term2663481 term37889 term40892 term43863 term43975 term44025 term47302 term47389 term49379 term50444 term52691 term69560 term69561 term73544 term77427 term77467 term77535 term78528