Historical orthophotos of PNOA 10

Historical digital aerial orthophotographs of the National Plan of Air Orthophotography (PNOA) with resolution of 10 cm (PNOA10). It is a collection of digital aerial orthophotographs produced by various public administrations, made in areas of interest (basically population centres and coastal areas).本数据集为国家航空正射影像计划（National Plan of Air Orthophotography, PNOA）的历史数字航空正射影像，分辨率达10厘米，该类影像标注为PNOA10。该数据集由各类公共行政部门制作生成，为覆盖指定关注区域（主要为人口聚居区与沿海区域）的数字航空正射影像合集。