Transmitted irradiance through sea ice from radiation station 2020R12

• Main Authors: Nicolaus, Marcel, Anhaus, Philipp, Hoppmann, Mario, Tao, Ran, Katlein, Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: 2020R12; Arctic Ocean; autonomous platform; AWI_SeaIce; BRS; buoy; radiation station; Current sea ice maps for Arctic and Antarctic; DATE/TIME; drift; Irradiance; downward; LATITUDE; lightchain; LONGITUDE; meereisportal.de; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; PS122/3; PS122/3_28-108; PS122/4; PS122/4_43-173; Quality flag; sun elevation; RAD_S; Sea Ice Physics @ AWI; snow depth; solar radiation; Spectral irradiance; downward at 320 nm; downward at 321 nm; downward at 322 nm; downward at 323 nm; downward at 324 nm; downward at 325 nm; downward at 326 nm; downward at 327 nm; downward at 328 nm; Antarc*; Antarctic; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948802; https://doi.org/10.1594/PANGAEA.948802

Solar radiation over and under sea ice was measured by radiation station 2020R12, an autonomous platform, installed on drifting Second-Year-Ice (SYI) in the Arctic Ocean during MOSAiC (Leg 3) 2019/20. The resulting time series describes radiation measurements as a function of place and time between 24 April 2020 and 07 August 2020 in sample intervals of 1 hour. 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, the evolution of snow height is measured at hourly intervals. All times are given in UTC.