Heating induced temperature difference measurements from radiation station 2019R9: 52 s after the heating cycle

Solar radiation over and under sea ice was measured by radiation station 2019R9, 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 07 October 2019 and 17 June 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, uncompensated and compensated conductivity of water as well as relative snow height was measured at hourly intervals. All times are given in UTC.2019/20年度MOSAiC科考项目第一航段期间，安装于北冰洋漂流一年冰（First-Year-Ice, FYI）上的自主观测平台2019R9辐射站，开展了海冰上下方太阳辐射的观测工作。所得到的时间序列记录了2019年10月7日至2020年6月17日期间，随空间位置与时间变化的辐射测量数据，采样间隔为3小时。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，已插值至1.0 nm，并对全波长范围（宽带总波段：320~950 nm）进行积分处理。两台传感器（太阳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辐照度。除辐射测量组件外，该自主观测平台还搭载了一套长5米的热敏电阻链（传感器间距0.02 m）以及多组其他传感器套件：以每小时1次的频率采集水温、压力与电导率数据；生态传感器以每小时1次的频率采集后向散射强度、叶绿素a浓度以及溶解有机物荧光信号数据；氧传感器以每小时1次的频率采集相对氧气空气饱和度与水温数据；此外，该平台还以每小时1次的频率采集水体未补偿与补偿电导率以及相对雪高数据。所有时间均采用协调世界时（UTC）标注。