Centennial observing stations provide a hundred or more years of largely uninterrupted meteorological observations from the same station — a unique opportunity for climate variability and change analysis. In 2017, with these important stations under threat from tightening government agency budgets, WMO created a mechanism to recognize and preserve their operation. To date, 140 long-serving stations in 47 countries have been honoured with this recognition.
Experts of the Advisory Board for WMO Recognition of Long-term Observing Stations – which is composed of climate, instrument and observation experts – are now exploring the prospect of adding marine and hydrological observing sites to this valuable recognition initiative. This was discussed at the first meeting of the group, held from 12 to 14 November at the Hong Kong Observatory, one of the first recognized centennial observing stations. This and other recommendations of the advisory board will be submitted at the WMO Executive Committee and Congress sessions for endorsement. The new call for candidate centennial observing stations was launched in December 2019.
More information is available here.