WSI: calibrated red or clear quicklook movies (MPEG), 2-min intervals - 02wsipartradmpg

The whole-sky imager (WSI) is an automated imager used for assessing and documenting cloud fields and cloud field dynamics. The WSI is a ground-based electronic imaging system that monitors the upper hemisphere. It is a passive, i.e., non-emissive, system that acquires images of the sky dome through three spectral filters (neutral, red, and blue). \n \nFrom these sky images, we can assess the presence, distribution, shape, and radiance of clouds over the entire sky using automated cloud decision algorithms and related processing. The current WSI model (EO System 6) is capable of image acquisition under daylight, moonlight, and starlight conditions.全天空成像仪（whole-sky imager, WSI）是一款用于评估与记录云系及其动态变化的自动化成像设备。该设备为地基电子成像系统，可对天半球进行监测。其属于被动式（非发射型）系统，通过中性、红色与蓝色三种光谱滤镜获取天穹的成像数据。 依托上述天空影像，可借助自动化云判定算法与相关处理流程，对全天空域内云的存在状态、空间分布、形态特征与辐射亮度进行评估。当前的WSI机型为EO System 6，可在日光、月光与星光条件下完成图像采集。