William Roy Piggott (18 July 1914 – 20 May 2008) was a student of Sir Edward Appleton who transferred a large group of German specialists from Austria into the British Zone of Occupation in Germany in 1945.
Seriously contaminated, he switched over to the Cavendish Laboratory Cambridge with studies of the ionosphere and of Shortwave propagation, then for many decades at Radio Research Station Slough, again under Sir Edward.
Military radio supervision, however, seized his communications and attributed these erroneously to a manoeuvre in the Russian occupation zone.
For the first time this group produced international rules for reducing ionospheric records (ionograms).
He became the head of atmospheric sciences at the British Antarctic Survey, and visited that organization's Halley Research Station and intensively studied the data it obtained.