50.3 MB (50.0 MB compressed)
4852 x 3627 pixels
41.1 x 30.7 cm ⏐ 16.2 x 12.1 in (300dpi)
BRITISH CROWN COPYRIGHT, THE MET OFFICE / SCIENCE PHOTO LIBRARY BRITISH CROWN COPYRIGHT, THE MET OFFICE / SCIENCE PHOTO LIBRARY
Thunderstorm detection system. Met Office employees using a chart (right) and cathode ray direction-finding equipment (left) to detect thunderstorms and plot their locations. The storms are detected by the radio noise (sferics) produced by lightning in the atmosphere. This radio noise, and the direction it is coming from, are displayed on the cathode ray screen. The Met Office is the UK's national weather monitoring and forecasting service. Several thunderstorm detection stations existed across the UK in the 1960s, including one at the Met Office headquarters in Bracknell.
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