Aerial Photography Single Frame

The Aerial Photography Single Frame Records collection is a large and diverse group of imagery acquired by Federal organizations from 1937 to the present. Over 6.5 million frames of photographic images are available for download as medium and high resolution digital products. The high resolution data provide access to photogrammetric quality scans of aerial photographs with sufficient resolution to reveal landscape detail and to facilitate the interpretability of landscape features. Coverage is predominantly over the United States and includes portions of Central America and Puerto Rico. Individual photographs vary in scale, size, film type, quality, and coverage.

航空摄影单帧记录数据集（Aerial Photography Single Frame Records）由美国联邦机构于1937年至今采集，是一组规模庞大、类型多样的影像集合。现有超650万帧摄影影像，可作为中、高分辨率数字产品下载获取。高分辨率数据可获取符合摄影测量标准的航空影像扫描件，其分辨率足以展现地表细节，同时提升地物特征的解译便利性。影像覆盖范围以美国本土为主，同时涵盖中美洲部分区域及波多黎各。单幅影像的比例尺、尺寸、胶片类型、成像质量及覆盖范围均存在差异。