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 and services for use in daily lives, long-term decision-making and research.

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 information discovery, access and retrieval services.

International exchange of data and products

In addition to the sharing of operational and time-critical information in accordance with the policy of information providers, the WMO Information System (WIS) facilitates the free and unrestricted access to data and information products and services on matters relating to safety and security of society, economic welfare and the protection of the environment.