Sperzel, Tim R; Jäkel, Evelyn; Lampert, Astrid; Birnbaum, Gerit; Pätzold, Falk; Neckel, Niklas; Rosenburg, Sophie; Fuchs, Niels; Wendisch, Manfred (2023): Surface type classifications from helicopter-borne imagery during a flight PS122/4_47-96 on 2020-07-17 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.959429, In: Sperzel, TR et al. (2023): Surface type classifications from helicopter-borne imagery during the MOSAiC expedition [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.958997
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Abstract:
Data include area fractions of sea ice surface types (white ice/snow, bright melt ponds, dark melt ponds, open water, bare ice) obtained from aerial imagery during 29 research flights that were performed within the scope of the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) experiment from May 2020 until end of September 2020. The images were taken every four seconds by fisheye lens cameras (Canon EOS digital) installed on a helicopter or HELiPOD, a towed survey probe. The data set provides additional information about the attitude and geographic location of the helicopter/HELiPOD. Only images that passed the quality checks were included.
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0870A: Application of airborne ice surface and radiation data based on MOSAiC observations for surface albedo parameterizations of the central Arctic (ALIBABA)
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0870B: Application of airborne ice surface and radiation data based on MOSAiC observations for surface albedo parameterizations of the central Arctic (ALIBABA)
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 81.135492 * Median Longitude: 0.346769 * South-bound Latitude: 81.134630 * West-bound Longitude: 0.316560 * North-bound Latitude: 81.139710 * East-bound Longitude: 0.434850
Date/Time Start: 2020-07-17T15:22:56 * Date/Time End: 2020-07-17T16:43:56
Minimum ALTITUDE: 95.59 m * Maximum ALTITUDE: 131.92 m
Event(s):
PS122/4_47-96 (PS122_4_47_96_2020071701) * Latitude Start: 81.138506 * Longitude Start: 0.356937 * Latitude End: 81.123960 * Longitude End: 0.353629 * Date/Time Start: 2020-07-17T15:13:46 * Date/Time End: 2020-07-17T17:22:04 * Elevation: -2535.6 m * O2A Registry URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Helicopter (HELI) * Comment: Scan of the MOSAiC-floe at 200ft
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Sperzel, Tim R | Geocode | ||
| 2 | LONGITUDE | Longitude | Sperzel, Tim R | Geocode | ||
| 3 | LATITUDE | Latitude | Sperzel, Tim R | Geocode | ||
| 4 | ALTITUDE | Altitude | m | Sperzel, Tim R | Geocode | |
| 5 | Roll angle | Roll | deg | Sperzel, Tim R | ||
| 6 | Pitch angle | Pitch | deg | Sperzel, Tim R | ||
| 7 | Yaw angle | Yaw | deg | Sperzel, Tim R | ||
| 8 | White ice/snow, fraction | White ice snow | Sperzel, Tim R | Digital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values | ||
| 9 | Bright melt pond, fraction | Bright melt pond | Sperzel, Tim R | Digital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values | ||
| 10 | Dark melt pond, fraction | Dark melt pond | Sperzel, Tim R | Digital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values | ||
| 11 | Open water, fraction | Open water | Sperzel, Tim R | Digital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
301 data points