Final answer:
The use of aerial photographs to improve the accuracy of surface maps is called photogrammetry. Photogrammetry is a remote sensing technique that involves extracting measurements and information from aerial photographs.
Step-by-step explanation:
The use of aerial photographs to improve the accuracy of surface maps is called photogrammetry. Photogrammetry is a remote sensing technique that involves extracting measurements and information from aerial photographs. By analyzing these photographs, geographers can create detailed and accurate maps of the Earth's surface.