Orthomosaics and surface type classifications of MOSAiC Leg 4 floe (2020-06-30, 2020-07-22)

• Main Authors: Fuchs, Niels, Birnbaum, Gerit
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Aerial Images; Arctic Ocean; Classification; Event label; Geospatial vector; shapefiles; shapefiles (File Size); HELI; Helicopter; melt pond; MOSAiC; MOSAiC20192020; MOSAIC-HELI; MOSAiC-ICE; Multidisciplinary drifting Observatory for the Study of Arctic Climate; orthomosaic; Polarstern; PS122_4_45_36_2020063001; PS122_4_48_69_2020072201; PS122/4; PS122/4_45-36; PS122/4_48-69; Raster graphic; GeoTIFF format; GeoTIFF format (File Size); Sea ice; Arctic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.949167; https://doi.org/10.1594/PANGAEA.949167

During the MOSAiC expedition, a comprehensive aerial observation program was conducted by the helicopters of the R/V Polarstern. This dataset contains two GeoTiff orthomosaics compiled from aerial RGB images recorded during Leg 4 above the central observatory (CO) on 2020-06-30 and 2020-07-22 and derived surface type classes maps on the leg 4 floe stored in shape file format. The data was processed based on the workflow presented in: https://gitlab.awi.de/nifuchs/pasta-ice. Both orthomosaics were overlaid with the position of the leg 4 floe on 2020-06-30 to facilitate comparison between both. The data is projected to UTM31N (EPSG: 32631) and resampled to a resolution of 0.5m. The aim of this dataset was to retrieve melt pond fraction on the leg 4 floe and give a visual identification for pond locations on both dates.