Reflected irradiance at the sea surface from radiation station 2020R13@en

Solar radiation over and under sea ice was measured by radiation station 2020R13, an autonomous platform, installed on drifting First-Year-Ice (FYI) 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 06 May 2020 and 15 May 2020 in sample intervals of 10 minutes. 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.2019/2020年北极气候多学科漂流观测计划（MOSAiC）第3航次期间，布设於北冰洋漂流一年冰（First-Year-Ice, FYI）之上的自主观测平台辐射站2020R13，完成了海冰上下表面的太阳辐射测量工作。所得时间序列记录了2020年5月6日至2020年5月15日期间，辐射测量值随空间位置与时间的变化规律，采样间隔为10分钟。本次辐射测量采用光谱辐射计（spectral radiometers）完成，所有数据均以全光谱分辨率提供，并插值至1.0纳米间隔，同时针对全波长范围（宽带总波段：320至950纳米）进行积分处理。两台传感器——太阳辐照度（solar irradiance）传感器与上行反射太阳辐照度（upward reflected solar irradiance）传感器——安装于海冰表面上方约1米处的观测平台；第三台传感器安装于海冰下方0.5米处，用于测量下行透射辐照度（downward transmitted irradiance）。