Total Sky Imager observations during POLARSTERN cruise PS122/4 on 2020-07-09

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 leg4 (from June until August 2020) of the MOSAIC experiment from Longyearbyen - Arctic Ocean this camera shots were taken with a temporal resolution between 1 minute and 16 seconds. 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）Powershot系列全天空成像仪（total sky imager），安装于极地号（Polarstern）研究船的顶部。该数据采集自MOSAIC实验第4航次（2020年6月至8月），此航次从朗伊尔城出发前往北冰洋，拍摄的时间分辨率介于1分钟至16秒之间。本数据集记录了极地号研究船在近似天顶方向拍摄的天气状况与云量分布的可见光成像结果，该观测数据可用于辅助解读大气辐射测量结果。