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UV Radiation Information

Introduction to UV radiation and UV index

How is UV radiation measured ?

A broadband UV sensor is used by the Hong Kong Observatory to measure the intensity of the UV radiation at the King's Park Meteorological Station. Both the UV radiation transmitted directly through the atmosphere and that scattered by gases and particles in the atmosphere are measured. This type of sensor has a response which approximates the response of skin to UV radiation of different wavelengths.

UV sensor
The Hong Kong Observatory's broadband UV sensor at its King's Park Meteorological Station

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Last revision date: <27 Dec 2012>