Total Sky Imager observations during POLARSTERN cruise ANT-XXV/5 on 2009-05-08 with links to images

Dataset consists of total sky images taken every 15 seconds during daytime. The imager was mounted at the top of the bridge of the Research Vessel POLARSTERN. Each file is a jpg-image and all the necessary information on the aperture or exposition is written in the jpg-header.本数据集涵盖日间每15秒采集的全部天空图像。成像仪安装于极星号（POLARSTERN）科考调查船的舰桥顶部。所有文件均为JPEG图像，与光圈、曝光相关的全部必要信息均存储于该JPEG文件的文件头中。