Hourly mean wind speed and direction recorded at the Hong Kong Observatory on 14-17 July 1925 | Gwulo: Old Hong Kong

Hourly mean wind speed and direction recorded at the Hong Kong Observatory on 14-17 July 1925

Hourly mean wind speed and direction recorded at the Hong Kong Observatory on 14-17 July 1925

The wind speeds were calculated from data recorded by the Beckley anemometer at HKO Headquarters in 1900 and the conversion factors from HKO Technical Note No. 66

Image courtesy of the Hong Kong Observatory.

For the background to this image, see: https://gwulo.com/node/38024