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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 PS122/5_59-139 on 2020-08-18 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.959438, 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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Published: 2023-05-26 • DOI registered: 2023-06-24

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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.
Keyword(s):
Arctic Surface Types; Helicopter; HELiPOD; MOSAiC expedition
Project(s):
Arctic Amplification (AC3)
Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)
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: 89.071522 * Median Longitude: -34.118449 * South-bound Latitude: 89.070660 * West-bound Longitude: -35.637600 * North-bound Latitude: 89.072470 * East-bound Longitude: -32.748980
Date/Time Start: 2020-08-18T15:36:27 * Date/Time End: 2020-08-18T16:21:23
Minimum ALTITUDE: 463.97 m * Maximum ALTITUDE: 468.02 m
Event(s):
PS122/5_59-139 * Latitude: 89.100106 * Longitude: -35.606555 * Date/Time: 2020-08-18T15:30:00 * Elevation: -4112.3 m * O2A Registry URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS122/5 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Helicopter (HELI) * Comment: Triangle pattern
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeSperzel, Tim RGeocode
2LONGITUDELongitudeSperzel, Tim RGeocode
3LATITUDELatitudeSperzel, Tim RGeocode
4ALTITUDEAltitudemSperzel, Tim RGeocode
5Roll angleRolldegSperzel, Tim R
6Pitch anglePitchdegSperzel, Tim R
7Yaw angleYawdegSperzel, Tim R
8White ice/snow, fractionWhite ice snowSperzel, Tim RDigital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values
9Bright melt pond, fractionBright melt pondSperzel, Tim RDigital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values
10Dark melt pond, fractionDark melt pondSperzel, Tim RDigital camera, Canon [fisheye lens]; followed by Classification based on pixel-wize detection of RGB-values
11Open water, fractionOpen waterSperzel, Tim RDigital 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:
3864 data points

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