https://doi.pangaea.de/10.1594/PANGAEA.997020Ringel, Maximilian HaraldMaximilian HaraldRingel0000-0002-0600-135XInstitute of Environmental Physics, University of BremenSpreen, GunnarGunnarSpreen0000-0003-0165-8448Institute of Environmental Physics, University of BremenKrumpen, ThomasThomasKrumpen0000-0001-6234-8756Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenNeudert, MaraMaraNeudertAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA2026Arcticco-locatedCONTRASTS expeditionGEM-2magnaprobemelt pond depthoceanPS149RV PolarsternSea iceSea ice thicknesssnow depthDATE/TIMELONGITUDELATITUDEEasting, Antarctic Polar Stereographic (EPSG:3031)Northing, Antarctic Polar Stereographic (EPSG:3031)Snow depthMelt pond depthDistanceNumber of observationsSea ice and snow thicknessIce stationBroadband electromagnetic sensorMagnaprobeGround-based Electromagnetic Induction Sounding Device, GEM-2, Geophex LtdPS149PolarsternArctic Amplification (AC3)2025-08-24T09:39:34/2025-08-24T11:15:29Datasethttps://doi.pangaea.de/10.1594/PANGAEA.99690810.57738/BZPM_0808_20269260 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis 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.996908.17.74447516835510517.8162224806604784.1723697233978684.17762604560197Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207AWI_PS149_01Sea Ice Physics (CONTRASTS)German Research Foundationhttps://doi.org/10.13039/501100001659268020496TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms