Abstract During the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. the Balloon-bornE moduLar Utility for profilinG the lower Atmosphere (BELUGA) was deployed from an ice floe drifting in the Fram Strait from 29 June to 27 July 2020. The BELUGA observations aimed to characterize the cloudy Arctic atmospheric boundary layer above the sea ice ... https://www.campicon.com/