Orthophotography of 50 cm of the Autonomous Community of the Basque Country. Year 1945/46

The orthophotography of 50 cm spatial resolution has been generated from the photogrammetric flight carried out in the years 1945-46 by the Army Map Service of the United States, with the collaboration of the Spanish Air Force. The approximate scale of the flight is 1:43,000, and the frames are black and white. Information provided by the Ministry of Defence.空间分辨率为50厘米的正射影像（orthophotography），系基于美国陆军地图勤务局（Army Map Service）1945至1946年间开展的摄影测量飞行作业成果生成，作业期间得到西班牙空军（Spanish Air Force）的协同配合。本次飞行作业的近似比例尺为1:43000，影像帧采用黑白制式。本数据集相关信息由国防部（Ministry of Defence）提供。