Data exchange and technology transfer

Data exchange and technology transfer

Observational data, information and derived products are freely exchanged in real-time or near real-time between WMO centres and national meteorological and hydrological services of Members around the world. 

Powerful computers in WMO centres worldwide process the data collected from tens of thousands of land and sea observation instruments and Earth-observing satellites. These data are used in numerical models based on physical laws to produce weather, climate and water-related forecasts, predictions and information products for use in daily lives and long-term decision-making.

Built on the Global Telecommunication System of the WMO World Weather Watch, the WMO Information System (WIS) provides routine collection and automated dissemination of observed weather, climate and water-related data and products, as well as data discovery, access and retrieval services.

International exchange of data and products

WMO facilitates the free and unrestricted exchange of data and information, products and services on matters relating to safety and security of society, economic welfare and the protection of the environment.