Orthophotos 2023

The aerial images were taken by the company FMM (Forest Mapping Management) with the digital camera UltraCam-Eagle M3 f100 (Vexcel). Subsequently, the company FMM created true orthophotos based on the aerial photographs. The ground resolution is 0.20 m. The images were taken in spring 2023 (22 March and 4 April 2023) and are therefore unfoliated. The orthophoto contains 4 bands with different color wavelengths: Volume 1 = red, Volume 2 = green, Volume 3 = blue, Volume 4 = near infrared.本数据集的航空影像由森林测绘管理公司（Forest Mapping Management，简称FMM）使用UltraCam-Eagle M3 f100型数码相机（Vexcel出品）拍摄。随后该公司基于这批航空影像制作了真正射影像图。该影像的地面分辨率为0.20米。影像拍摄于2023年春季，具体日期为2023年3月22日及4月4日，此时植被尚未展叶。该真正射影像图包含4个不同光谱波段：波段1对应红光波段，波段2对应绿光波段，波段3对应蓝光波段，波段4对应近红外波段。