Temperature measurements from radiation station 2019R8@en

Solar radiation over and under sea ice was measured by radiation station 2019R8, an autonomous platform, installed on drifting First-Year-Ice (FYI) in the Arctic Ocean during MOSAiC (Leg 1) 2019/20. The resulting time series describes radiation measurements as a function of place and time between 05 October 2019 and 31 July 2020 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 a 5 m long thermistor chain with sensor spacing of 0.02 m and several other sensor packages, which measured water temperature, pressure and conductivity at hourly intervals. Ecology sensors measured backscatter strength, chlorophyll a and fluorescence of dissolved organic matter at hourly intervals. Oxygen sensors measured relative oxygen air saturation, and water temperature at hourly intervals. In addition, relative snow height was measured at hourly intervals. All times are given in UTC.2019/2020年北极海冰漂流科考计划MOSAiC（第一航段）期间，一套部署于北冰洋漂流第一年海冰（First-Year-Ice, FYI）上的自主观测平台——辐射站2019R8，对海冰上方与下方的太阳辐射开展了观测。所得时间序列描述了2019年10月5日至2020年7月31日期间，随空间位置与时间变化的辐射观测数据，采样间隔为3小时。本次辐射观测采用光谱辐射计（spectral radiometers）完成，所有数据均以全光谱分辨率给出并插值至1.0纳米，且对全波长范围进行积分得到宽带总辐射（波长范围320至950nm）。两台传感器分别为太阳辐照度与向上反射太阳辐照度传感器，安装于海冰表面上方约1米的平台上；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太阳辐照度。除辐射测量组件外，该自主观测平台还搭载了一条长5米的热敏电阻链（thermistor chain），传感器间距为0.02米，以及多组其他传感器组件：生态传感器可每小时测量后向散射强度、叶绿素a浓度与溶解有机物荧光；溶氧传感器可每小时测量相对氧气空气饱和度与水温；此外还以小时间隔测量了相对雪高。所有时间均采用协调世界时（UTC）。