摘要：the sea ice surface temperature is important to understand the arctic winter heat budget. We conducted 35 helicopter fights with an infrared camera in winter 2019/2020 during the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition . The fights were performed from a local, 5 to 10 km scale up to a regional, 20 to 40 km scale . The infrared camera recorded thermal infrared brightness temperatures, which we converted to surface temperatures . More than 150000 images from all fights can be investigated individually. As an advanced data product, we created surface temperature maps for every fight with a 1 m resolution . We corrected image gradients, applied an ice drift correction, georeferenced all pixels, and corrected the surface temperature by its natural temporal drift, which results in time-fxed surface temperature maps for a consistent analysis of one fight . The temporal and spatial variability of sea ice characteristics is an important contribution to an increased understanding of the arctic heat budget and, in particular, for the validation of satellite products.
