Melt pond bathymetry of the MOSAiC floe derived by photogrammetry - spatially fully resolved pond depth maps of an Arctic sea ice floe ...

• Main Authors: Fuchs, Niels, Birnbaum, Gerit
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Aerial Images; melt pond; melt pond depth; MOSAiC20192020; Photogrammetry; pond bathymetry; Sea ice; Event label; DATE/TIME; Raster graphic, GeoTIFF format; Raster graphic, GeoTIFF format File Size; Helicopter; PS122/4; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC
• Online Access: https://dx.doi.org/10.1594/pangaea.964520; https://doi.pangaea.de/10.1594/PANGAEA.964520

A newly developed method to derive melt pond bathymetry from aerial images allowed us to compile spatially fully resolved maps of pond depth on the MOSAiC floe from three measurement flights on 30 June, 17 July, and 22 July 2020. The pond bathymetry maps provide an unprecedented comprehensive insight into the spatial and temporal development of ponds and their geometry. They were derived to better understand pond evolution, determine the volume of water contained in the ponds, and eventually obtain improved parameterizations for ponds. The data is provided in GeoTIFF raster format, with every pixel in ponds containing the depth at that location in meters, downward negative. Pond bathymetry was calculated from orthomosaics and digital elevation models processed from helicopter aerial images collected on MOSAiC floe grid surveys.Pond bathymetry is stored in GeoTIFFs, containing pond depth in meters, in the negative downward direction. Only regions classified as ponds with the classification algorithm PASTA-ice ...