Longwave and shortwave cloud radiative forcing derived from broadband irradiance observations (https://doi.org/10.1594/PANGAEA.900442) during the ACLOUD (Arctic CLoud Observations Using airborne measurements during polar Day) campaign in May / June 2017. This dataset contains only low-level flight sections (in case of clouds always below clouds). In addition, a cloud liquid water path equivalent derived from the shortwave transmissivity is given and a cloud-free albedo estimate during cloudy observations.

Supplement to: Stapf, Johannes; Ehrlich, André; Jäkel, Evelyn; Lüpkes, Christof; Wendisch, Manfred (2020): Reassessment of shortwave surface cloud radiative forcing in the Arctic: consideration of surface-albedo–cloud interactions. Atmospheric Chemistry and Physics, 20(16), 9895-9914