In the period 1939 – 1946, the territory of the Czech Republic was mapped for the purpose of renewing topographic maps of the territory of the Third Reich, and aerial reconnaissance (AR) of the CR territory was also carried out by the Allies. The AR was conducted in two directions. The first was to search for enemy targets, and the second was to verify the results of bombing these targets. Allied data indicated that up to 20% of the bombs did not explode. This unexploded aerial ammunition is to this day a threat to construction in the outskirts of towns and cities. This paper discusses the procedures for processing archival aerial photographs of bombed areas in the Czech Republic and the identification of unexploded ammunition on these images.
Šafář et al. (Mon,) studied this question.