Auxiliary data from radiation station 2018R1@en

Solar radiation over and under sea ice was measured by radiation station 2018R1, an autonomous platform, installed on drifting First-Year-Ice (FYI) in the Weddell Sea during PS111_ANT. The resulting time series describes radiation measurements as a function of place and time between 26 February 2018 and 16 November 2018 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. All times are given in UTC.本数据集的辐射观测由自主观测平台辐射站2018R1完成，该平台部署于威德尔海的浮式一年冰（First-Year-Ice, FYI）之上，隶属于南极科考航次PS111_ANT。所得时间序列记录了2018年2月26日至2018年11月16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1小时。本次辐射观测采用光谱辐射计开展，所有数据均以全光谱分辨率输出，并经插值至1.0 nm的光谱间隔；同时提供全波长范围（宽带总辐射：320~950 nm）的积分结果。两台传感器——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；第三台传感器则安装于海冰下方0.5米处，用于测量向下透射的辐照度。所有时间均采用协调世界时（UTC）标注。