Aerial base map

General info
1/1 500 to 1/250
Spatial resolution: 
0.5 to 0.05m
Required processing: 
Orthorectification, mosaicking of images.
Data requirements: 

Airplane, Sensor, appropriate weather conditions, permission by national authorities.

Mosaic of georeferenced ortho aerial photos

Why using remote sensors?: 

RS is the most efficient way to create base maps over large areas and areas that are not safe to enter.
Aerial images provide a better resolution than satellite images so that more details can be interpreted visually (e.g. tracks, fortifications, trenches, ....)