Spectral radiation fluxes, albedo and transmittance from autonomous measurements from Radiation Station 2020R21, deployed during MOSAiC 2019/20 ...

• Main Authors: Nicolaus, Marcel, Hoppmann, Mario, Tao, Ran, Katlein, Christian
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2023
• Subjects: autonomous platform; buoy; drift; light chain; snow depth; solar radiation; Radiation Station; PS122/5; Polarstern; Current sea ice maps for Arctic and Antarctic meereisportal.de; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Sea Ice Physics @ AWI AWI_SeaIce; albedo; Antarc*; Antarctic; Arctic Ocean; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.948838; https://doi.pangaea.de/10.1594/PANGAEA.948838

Solar radiation over and under sea ice was measured by radiation station 2020R21, an autonomous platform, installed on a drifting melt pond in the Arctic Ocean during MOSAiC (Leg 5) 2019/20. The resulting time series describes radiation measurements as a function of place and time between 27 August 2020 and 14 November 2020 in sample intervals of 3 hours. The radiation measurements have been performed with spectral radiometers. All data are given in full spectral resolution interpolated to 1.0 nm, and integrated over the entire wavelength range (broadband, total: 320 to 950 nm). Two sensors, solar irradiance and upward reflected solar irradiance, were mounted on a on a platform about 1 m above the sea ice surface. The third sensor was mounted 0.5 m underneath the sea ice measuring the downward transmitted irradiance. Along with the radiation measurements, this autonomous platform consisted of a lightchain, which measured counts of red, green and blue light at 49 positions at hourly intervals. In addition, ...