Case 4 : The effect of tropical cyclone on the ambient radiation level in Hong Kong

Affected by Typhoon Dujuan, Hong Kong experienced northerly winds and heavy rain from 2nd - 3rd September 2003. The ambient radiation level in Hong Kong increased sharply during this period.

Track of Typhoon Dujuan (2nd- 3rd September 2003)

The ambient radiation level recorded by the Observatory's Radiation Monitoring Network from 2nd- 3rd September 2003