Total Sky Imager observations during POLARSTERN cruise PS122/1 on 2019-10-02@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 leg1 (from September until December 2019) of the MOSAIC experiment from Tromsø to the northerns part of 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.本数据集包含天空场景的相机拍摄影像。所用相机为佳能（Canon）生产的Powershot系列全天成像仪，安装于极星号（Polarstern）研究船的桅杆顶端。在MOSAIC实验第一航段（2019年9月至12月，航线从特罗姆瑟（Tromsø）前往北冰洋北部海域）期间，该相机以15分钟的时间分辨率完成拍摄。本数据集记录了极星号研究船在近天顶方向观测到的气象状况与云量的可见光投影画面。此类观测数据可用于辅助解读大气辐射测量结果。