Auroral optical monitoring observation data at Syowa Station: Electron Auroral Imager 2 (EAI-2) data in 2020

Auroral optical observation data obtained with the Electron Auroral Imager 2 (EAI-2) at Syowa Station, Antarctica in 2020. Specifications of the EAI-2 are as follows | 1. Filter center wavelength: 557.7 nm | 2. Filter FWHM: 3.0 nm | 3. Camera: back illuminated cooled CCD camera (Hamamatsu C4880-21) | 4. Lens: Fisheye-Nikkor 16mm F2.8 | 5. Exposure: 2 sec | 6. Interval: 15 sec | 7. Original image resolution: 512x512 pixels, 2byte/pixel | 8. Original image format: TIF | 9. Quick Look image resolution: 720x480 | 10. Quick Look image format: JPG本数据集为2020年于南极昭和站（Syowa Station）通过电子极光成像仪2号（Electron Auroral Imager 2，EAI-2）获取的极光光学观测数据。电子极光成像仪2号的技术规格如下： 1. 滤光片中心波长：557.7 nm 2. 滤光片半高全宽（Full Width at Half Maximum，FWHM）：3.0 nm 3. 相机：背照式制冷CCD相机（滨松Hamamatsu C4880-21） 4. 镜头：鱼眼尼克尔16mm F2.8 5. 曝光时长：2秒 6. 拍摄间隔：15秒 7. 原始图像分辨率：512×512像素，2字节/像素 8. 原始图像格式：TIF 9. 快速预览图像（Quick Look image）分辨率：720×480 10. 快速预览图像格式：JPG