Reflected irradiance at the sea surface from radiation station 2020R22

Solar radiation over and under sea ice was measured by radiation station 2020R22, an autonomous platform, installed on drifting sea ice 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 21 August 2020 and 12 September 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.本数据集的观测数据由部署于北冰洋漂流海冰上的自主观测平台辐射站2020R22采集，记录了2019/2020年北极气候多学科漂流观测站（Multidisciplinary drifting Observatory for the Study of Arctic Climate, MOSAiC）第5航次期间，北极海冰上下表面的太阳辐射数据。所得到的时间序列覆盖2020年8月21日至2020年9月12日的辐射测量结果，采样间隔为10分钟，测量值随空间位置与时间动态变化。本次辐射测量采用光谱辐射计完成，所有数据均以全光谱分辨率输出并插值至1.0纳米间隔，同时提供了全波长范围（宽带总辐射：320~950纳米）下的积分结果。其中两台传感器分别测量太阳入射辐照度与向上反射太阳辐照度，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，用于测量向下透射的辐照度。