The dataset consists of continuous measurements of global, direct and diffuse spectral irradiance and aerosol optical thickness during Polarstern cruises PS83, PS95, PS98, PS102 and PS113 with the GUVis-3511 radiometer and the BioSHADE accessory build by Biospherical Instruments Inc.. To derive this dataset, the raw GUVis-3511 data is processed as described in Witthuhn et al. 2017, doi:10.5194/amt-10-709-2017 A first version of this data from cruise PS83 is already published at pangaea: doi:10.1594/PANGAEA.872377 Since then the processing algorithm receives major updates as described in Witthuhn et al. 2019 ( in review, doi:10.5194/amt-2019-321).