Total Sky Imager observations during POLARSTERN cruise PS122/2, Arctic Ocean to Arctic Ocean@en

The dataset consist of camera shots of the sky. The camera - a total sky imager manufactured by Canon (Powershot) - was mounted at the top of the Research Vessel Polarstern. At the leg2 (from December 2019 until February 2020) of the MOSAIC experiment in the Arctic Ocean this camera shots were taken with a temporal resolution of 15 minutes. The dataset represents the visible projection of weather conditions and cloud cover recorded on the vessel Polarstern in the direction near the zenith. These observations are useful for the interpretation of the atmospheric radiation measurements.本数据集由天空实拍影像构成。所用相机为佳能（Canon）PowerShot系列全天空成像仪（total sky imager），安装于极星号（Polarstern）科考船的船顶。在北冰洋MOSAIC实验的第2航段（2019年12月至2020年2月）期间，该相机以15分钟的时间分辨率采集影像。本数据集呈现了极星号科考船上朝向近天顶方向记录的天气状况与云覆盖的可见光影像。此类观测数据可用于辅助解释大气辐射测量结果。