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| WMO Commission for Basic Systems | |
|---|---|
| Name | WMO Commission for Basic Systems |
| Formation | 1951 |
| Type | Intergovernmental body |
| Headquarters | Geneva |
| Parent organization | World Meteorological Organization |
WMO Commission for Basic Systems The WMO Commission for Basic Systems (CBS) is the technical commission of the World Meteorological Organization responsible for essential observing, data exchange, monitoring, and information systems that underpin international WMO services. CBS coordinates standards, procedures, and infrastructure that enable operational activities across regional bodies such as the World Weather Watch, supports programmes like the Global Atmosphere Watch, and interfaces with agencies including the United Nations and the Intergovernmental Panel on Climate Change.
CBS originated from post‑World War II efforts involving the International Meteorological Organization transition and the creation of the World Meteorological Organization. Early contributors included national services such as the Met Office (United Kingdom), Météo-France, Deutscher Wetterdienst, National Oceanic and Atmospheric Administration, and the Japan Meteorological Agency. CBS’s mandate formalized through successive WMO Congresses to oversee components of the Global Observing System, the Global Telecommunication System, and the World Weather Watch. Key milestones intersect with events like the International Geophysical Year, the establishment of the Global Climate Observing System, and the adoption of standards at meetings of the WMO Executive Council.
CBS operates under the authority of the WMO Executive Council and reports to the WMO Congress. Its governance comprises a President, Vice‑Presidents, technical rapporteurs, and task teams drawn from national meteorological and hydrological services such as Servicio Meteorológico Nacional (Argentina), Environment and Climate Change Canada, Australian Bureau of Meteorology, and the China Meteorological Administration. Working groups within CBS align with regional associations including WMO Regional Association I (Africa), WMO Regional Association II (Asia), WMO Regional Association III (South America), and WMO Regional Association IV (North America, Central America and Caribbean). CBS convenes sessions and intersessional meetings engaging experts from institutions like the European Centre for Medium-Range Weather Forecasts, the National Aeronautics and Space Administration, the European Space Agency, and the World Bank.
CBS leads standards and procedures across the Global Observing System, Global Telecommunication System, Global Data-processing and Forecasting System, and the WMO Information System. Activities include development of manuals, implementation of International Civil Aviation Organization meteorological provisions, and coordination with United Nations Framework Convention on Climate Change reporting mechanisms. CBS oversees technical specifications for platforms such as radiosondes used by the South African Weather Service, marine buoys maintained by National Oceanic and Atmospheric Administration, and satellite-derived products from Meteosat and GCOM-W1. It also supports operational forecasting centres including the Met Office Hadley Centre, the ECMWF, and the U.S. National Weather Service.
CBS sets interoperability standards for observing networks like the Global Climate Observing System, the Global Ocean Observing System, and the Global Atmosphere Watch. It manages protocols for the Global Telecommunication System, data formats such as GRIB and BUFR, and metadata standards harmonized with ISO and the Open Geospatial Consortium. CBS coordinates station networks including upper‑air arrays, surface synoptic stations, radiosonde sites operated by India Meteorological Department, and automated weather stations used by Japan Meteorological Agency. Integration with satellite constellations from European Organisation for the Exploitation of Meteorological Satellites, NOAA satellites, and JAXA ensures data flow to operational centres like the National Centers for Environmental Prediction.
CBS administers technical guidance and training initiatives through partnerships with regional training centres such as the WMO Regional Training Centre (Canada), and collaborates with development agencies like the United Nations Development Programme and the Asian Development Bank. Capacity development targets national services including Servicio Meteorológico Nacional (Mexico), Instituto Nacional de Meteorología e Hidrología (Colombia), and Bangladesh Meteorological Department to adopt standards for observing systems and data management. CBS contributes to programmes including the WMO Voluntary Cooperation Programme and supports implementation of the WMO Strategy for Service Delivery.
CBS maintains formal and informal links with intergovernmental and technical partners: the United Nations Educational, Scientific and Cultural Organization, the International Civil Aviation Organization, the International Maritime Organization, the Group on Earth Observations, the Global Framework for Climate Services, and research bodies such as the International Council for Science and the World Climate Research Programme. It engages commercial partners including satellite operators, and collaborates with academic institutions like Massachusetts Institute of Technology, University of Oxford, Peking University, and National University of Singapore for research and innovation in observing technologies.
CBS has enabled harmonized data exchange that supports early warning systems cited in assessments by the Intergovernmental Panel on Climate Change and disaster risk reduction frameworks led by the United Nations Office for Disaster Risk Reduction. Notable initiatives include modernization of the Global Telecommunication System, rollout of WMO Information System components, adoption of the GRIB2 standard, and transition plans for integrating novel observing platforms like unmanned aerial systems used by French National Centre for Meteorological Research and CSIRO. CBS contributions underpin services delivered by operational centres such as the European Storm Forecast Experiment and national warning systems evident in case studies from Philippines Atmospheric, Geophysical and Astronomical Services Administration and National Weather Service (United States).