Reflected irradiance at the sea ice surface from radiation station 2018R4

• Main Authors: Nicolaus, Marcel, Katlein, Christian, Hoppmann, Mario
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: 2018R4; Arctic Ocean; Arctic Ocean 2018; MOCCHA; autonomous platform; AWI_SeaIce; BRS; buoy; radiation station; Conductivity; Current sea ice maps for Arctic and Antarctic; DATE/TIME; drift; drift ice; Ice mass balance; Irradiance; upward; reflected at sea ice surface; photosythetically active; absolute; LATITUDE; light chain; LONGITUDE; meereisportal.de; MIDO; Multidisciplinary Ice-based Distributed Observatory; Oden; Oden_AO2018; Oden_AO2018_2018R4; Quality flag; sun elevation; RAD_S; Sea Ice Physics @ AWI; solar radiation; Spectral irradiance; reflected at sea ice surface at 320 nm; reflected at sea ice surface at 321 nm; Antarc*; Antarctic; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.936799; https://doi.org/10.1594/PANGAEA.936799

Solar radiation over and under sea ice was measured by radiation station 2014R4, an autonomous platform, installed on drifting Multi-Year-Ice (MYI) in the Arctic Ocean during Oden_AO18. The resulting time series describes radiation measurements as a function of place and time between 20 August 2018 and 20 December 2018 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 thermistor chain with 208 sensors and several other sensor packages, which measured water temperature and conductivity at hourly intervals. An underwater lightchain measured counts of red, green and blue light at 49 positions at hourly intervals. All times are given in UTC.