Rückert, Janna Elisabeth; Bahlmann, Jonathan; Bühler, Linnu; Risse, Nils; Trace-Kleeberg, Sunke: Snow and surface scattering layer density, salinity and grain size measurements during RV POLARSTERN cruise PS144 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993495 (dataset in review)
Abstract:
During the Polarstern cruise PS144 from August 2024 to October 2024 in the central Arctic Ocean snowpit measurements were performed during10 ice stations. A density cutter of fixed volume (100 cm³) and weight was used to measure the density profile of the snow/surface scattering layer (SSL). The height of the sampled volume was recorded with a ruler. 0 cm is the snow-ice interface, negative values denote the surface scattering layer. The combined weight of the density cutter and the snow inside it was measured with a digital scale. The resulting density is the weight of snow/volume. Snow or SSL was collected in plastic containers and used for subsequent salinity and conductivity measurements onboard (using a handheld Greisinger G1410 salinometer). In addition, the grain size was determined visually with a magnifying glass and a screen with a mm-grid and is given as average minimum and maximum size. Hardness using the hand hardness scale and grain types according to the stratification identified by the observer in the snowpit are described in the "Comment" column (the hardness in addition in the Hardness of snow column) . All measurements were done within the vicinity of the footprint of the onboard microwave radiometers installed for the VAMPIRE project https://doi.pangaea.de/10.1594/PANGAEA.990496) (that is, in about 25 m distance to the port bow of Polarstern), further refined in the "Location" column. For more information about these measurements the user is referred to Chapter 6.4 of the cruise report (https://doi.org/10.57738/BZPM_0794_2025).
Related to:
Bühler, Linnu; Rückert, Janna Elisabeth; Walbröl, Andreas; Mech, Mario; Risse, Nils; Krobot, Pavel; Ebell, Kerstin; Schnitt, Sabrina; Spreen, Gunnar (2026): Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-1): remote sensing and in-situ measurements suite during POLARSTERN cruise PS144 (ArcWatch-2) [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.990496
Rabe, Benjamin; Geibert, Walter (2025): The Expedition PS144 of the Research Vessel POLARSTERN to the Arctic Ocean in 2023 /2024. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 794, 312 pp, https://doi.org/10.57738/BZPM_0794_2025
Project(s):
Arctic Amplification (AC3)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS144_06: SeaIcePhys. (ArcWatch1/TransArc3)
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 86.859040 * Median Longitude: 126.616566 * South-bound Latitude: 84.493750 * West-bound Longitude: 42.977432 * North-bound Latitude: 89.958889 * East-bound Longitude: -150.666990
Date/Time Start: 2024-08-16T17:00:00 * Date/Time End: 2024-09-26T01:00:00
Minimum Elevation: -4743.9 m * Maximum Elevation: -1980.1 m
Event(s):
PS144_7-1 * Latitude Start: 85.063609 * Longitude Start: 42.977494 * Latitude End: 85.054221 * Longitude End: 42.692716 * Date/Time Start: 2024-08-16T11:21:02 * Date/Time End: 2024-08-16T20:50:27 * Elevation Start: -3927.5 m * Elevation End: -3929.2 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS144 (ArcWatch 2; TransArc3) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: bad view
PS144_23-1 * Latitude: 84.511697 * Longitude: 115.392214 * Date/Time: 2024-08-29T12:32:42 * Elevation: -4141.7 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS144 (ArcWatch 2; TransArc3) * Basis: Polarstern * Method/Device: Ice station (ICE)
PS144_42-1 * Latitude Start: 84.840295 * Longitude Start: 128.609957 * Latitude End: 84.806416 * Longitude End: 128.908747 * Date/Time Start: 2024-09-02T20:40:26 * Date/Time End: 2024-09-03T01:02:00 * Elevation Start: -4353.2 m * Elevation End: -4349.6 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS144 (ArcWatch 2; TransArc3) * Basis: Polarstern * Method/Device: Ice station (ICE)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Rückert, Janna Elisabeth | |||
| 2 | Sample code/label | Sample label | Rückert, Janna Elisabeth | |||
| 3 | DATE/TIME | Date/Time | Rückert, Janna Elisabeth | Geocode | ||
| 4 | LATITUDE | Latitude | Rückert, Janna Elisabeth | Geocode | ||
| 5 | LONGITUDE | Longitude | Rückert, Janna Elisabeth | Geocode | ||
| 6 | Location | Location | Rückert, Janna Elisabeth | |||
| 7 | Height, relative, from ice/snow interface | H rel ice/snow interf | m | Rückert, Janna Elisabeth | Ruler stick (RULER) | top, 0 = ice/snow interface, if negative = surface scattering layer |
| 8 | Height, relative, from ice/snow interface | H rel ice/snow interf | m | Rückert, Janna Elisabeth | Ruler stick (RULER) | bottom, 0 = ice/snow interface, if negative = surface scattering layer |
| 9 | Density, snow | Density snow | kg/m3 | Rückert, Janna Elisabeth | Density cutter [100 cm³] and weight | |
| 10 | Snow grain size, minimum | Snow grain size min | mm | Rückert, Janna Elisabeth | Magnifying glass and grid-card | |
| 11 | Snow grain size, maximum | Snow grain size max | mm | Rückert, Janna Elisabeth | Magnifying glass and grid-card | |
| 12 | Hardness of snow | Snow hardness | Rückert, Janna Elisabeth | Determined by hand | ||
| 13 | Snow salinity | Snow salinity | Rückert, Janna Elisabeth | Salinometer, Greisinger, G1410 [handheld] | ||
| 14 | Sea ice and snow conductivity | Sea ice+snow cond | mS/m | Rückert, Janna Elisabeth | Salinometer, Greisinger, G1410 [handheld] | |
| 15 | Comment | Comment | Rückert, Janna Elisabeth | |||
| 16 | Observer | Observer | Rückert, Janna Elisabeth |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
724 data points