Bühler, Linnu; Walbröl, Andreas: Snow and ice surface photogrammetry images collected during RV POLARSTERN cruise PS149 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995161 (dataset in review)
Abstract:
During the Polarstern cruise PS149 (Nicolaus, 2026) from July to August 2025 in the central Arctic Ocean a standard digital camera (Nikon D5200, sometimes also Olympus E-M5) and a set of reference targets were used to take sets of images almost every day of the 11 ice stations, each of which lasted for 2-4 days (in total, 28 days are covered). From this, the surface topography and roughness at the centimeter scale can be retrieved (multi-image photogrammetry/structure from motion), which is an important parameter for the microwave emission and scattering. The reference targets were distributed around a small (around 0.35 m x 0.7 m) area, and pictures were taken from different angles with fixed focus length. All measurements were done within the vicinity of the footprint of the onboard microwave radiometers installed for the VAMPIRE project (that is, in about 25 m distance to the port bow of Polarstern). The dataset consists of the raw measurements (the photos as .jpg files).
Keyword(s):
Related to:
Bühler, Linnu; Rückert, Janna Elisabeth; Walbröl, Andreas; Mech, Mario; 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-2): remote sensing and in-situ measurements suite during POLARSTERN cruise PS149 (CONTRASTS) [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.990497
Nicolaus, Marcel (2026): The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 808, 382 pp, https://doi.org/10.57738/BZPM_0808_2026
Project(s):
Arctic Amplification (AC3)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS149_07: VAMPIRE-2
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 83.692217 * Median Longitude: 8.230037 * South-bound Latitude: 82.411617 * West-bound Longitude: -17.933517 * North-bound Latitude: 84.944883 * East-bound Longitude: 33.996233
Date/Time Start: 2025-07-11T00:00:00 * Date/Time End: 2025-08-27T00:00:00
Event(s):
PS149_13-1-olympus_camera_IUP_UB-01 * Latitude: 83.759300 * Longitude: 22.246617 * Date/Time Start: 2025-07-11T09:18:00 * Date/Time End: 2025-07-11T11:00:00 * O2A Registry URI: https://registry.o2a-data.de/items/12070 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Camera (CAME) * Comment: Not logged in DShip. nan
PS149_16-1-olympus_camera_IUP_UB-01 * Latitude: 84.944883 * Longitude: 14.116633 * Date/Time Start: 2025-07-15T13:25:00 * Date/Time End: 2025-07-15T14:30:00 * O2A Registry URI: https://registry.o2a-data.de/items/12070 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Camera (CAME) * Comment: Not logged in DShip. nan
PS149_16-1-olympus_camera_IUP_UB-02 * Latitude: 84.798083 * Longitude: 14.221650 * Date/Time Start: 2025-07-16T12:50:00 * Date/Time End: 2025-07-16T15:09:00 * O2A Registry URI: https://registry.o2a-data.de/items/12070 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Camera (CAME) * Comment: Not logged in DShip. nan
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Station label | Station | Bühler, Linnu | |||
| 2 | DATE/TIME | Date/Time | Bühler, Linnu | Geocode | ||
| 3 | Event label | Event | Bühler, Linnu | |||
| 4 | Latitude of event | Latitude | Bühler, Linnu | |||
| 5 | Longitude of event | Longitude | Bühler, Linnu | |||
| 6 | Binary Object | Binary | Bühler, Linnu | Camera, Nikon D5200 or Olympus E-M5 | ||
| 7 | Binary Object (File Size) | Binary (Size) | Bytes | Bühler, Linnu | Camera, Nikon D5200 or Olympus E-M5 |
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:
56 data points