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The Observatory participates in a comparison of solar radiation instruments in Lijiang, Yunnan

19 May 2009

Two officers of the Hong Kong Observatory, Mr. Chan Kai-wing and Mr. Yip Choi-hung, participated in a comparison exercise, organized by the China Meteorological Administration, involving solar radiation instruments and solar radiation standards between 14 and 23 March 2009.

This is a bi-annual event to compare solar radiation equipment from the different provinces of China with the Chinese National Standard. This year, the comparison event took place at the town of Lijiang in the northern part of Yunnan province. Solar instruments from eight provinces were compared in the event in addition to those of the Hong Kong Observatory.

The Hong Kong Observatory regularly participates in international comparisons to ensure the calibration of its solar equipment is traceable to the World Standard Group (WSG), which is operated and maintained by WMO's World Radiation Center (WRC) in Davos, Switzerland.

Group photo of participants of the solar radiation instruments comparison exercise at Lijiang in Yunnan.

Group photo of participants of the solar radiation instruments comparison exercise at Lijiang in Yunnan