20 (Xinhua) -- The Guangdong-Hong Kong-Macao Greater Bay Area (GBA) branch of the World Meteorological Center (WMC) Beijing was launched on Monday.Located in the Huangpu District of Guangzhou, capital of south China's Guangdong Province, the branch will provide weather forecasting services for participating countries of the Belt and Road Initiative, and build an international exchange and training platform for meteorological technology.