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. Solar-terrestrial prediction services in China began in 1969 at theBeijing Astronomical Observatory (BAO), Chinese Academy of Sciences (CAS). In1990, BAO joined the International URSIgram and World Days Service (IUWDS)and started solar-terrestrial data and prediction interchanges with othermembers of IUWDS. The short-term solar activity prediction service withstandard URSIgram codes began in January 1991 at BAO, and forecasts have beenissued routinely every weekday from then on. The Regional Warning CenterBeijing (RWC-Beijing) of IUWDS was officially approved in China in 1991 andwas formally established in February 1992. In 1996, the IUWDS was changed tothe current name, the International Space Environment Service (ISES). In2000, the RWC-Beijing was renamed RWC-China according to ISES requirements.In 2001, the National Astronomical Observatories, CAS (NAOC) was established.All the solar-terrestrial data and prediction services of BAO were taken upby NAOC. The headquarters of RWC-China is located on the campus of NAOC.

A brief history of Regional Warning Center China (RWC-China)