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| National Meteorological Service of Brazil | |
|---|---|
| Name | Serviço Nacional de Meteorologia do Brasil |
| Native name | Serviço Nacional de Meteorologia |
| Formation | 1909 |
| Headquarters | Brasília |
| Region served | Brazil |
| Parent organization | Ministry of Science, Technology and Innovation |
National Meteorological Service of Brazil is the federal meteorological agency responsible for atmospheric observation, weather forecasting, climate monitoring and meteorological research across Brazil. The agency operates within Brasília and coordinates with regional offices, academic institutions and international bodies to provide services for aviation, agriculture, civil defense and public safety. It maintains observational networks, numerical weather prediction centers, and contributes to climate assessments and disaster risk reduction.
The agency traces roots to the early 20th century with initiatives linked to the Brazilian Navy, Pedro II of Brazil-era institutions, and later reforms connected to the Republic of Brazil and the First Brazilian Republic. In the 1930s and 1940s it expanded in parallel with global developments at the World Meteorological Organization, the International Civil Aviation Organization, and scientific advances from laboratories such as Mount Weather and observatories like the Royal Observatory, Greenwich. Postwar modernization drew on collaborations with United States Weather Bureau, Met Office, Météo-France, and the Deutscher Wetterdienst. The Cold War era saw ties with the National Oceanic and Atmospheric Administration, Soviet Union meteorological services, and participation in international programs such as the Global Atmospheric Research Program, Global Weather Experiment, and the International Geophysical Year. Democratic transitions and environmental movements in the 1980s and 1990s influenced alignment with agencies like IPCC, United Nations Environment Programme, and regional initiatives including the Organization of American States. More recent restructuring followed fiscal and policy debates involving the Ministry of Science and Technology (Brazil), the Ministry of Defense (Brazil), and state governments in São Paulo, Rio de Janeiro, and Paraná.
The agency is organized into headquarters divisions, regional centers, and specialized laboratories modeled after structures at European Centre for Medium-Range Weather Forecasts, National Centers for Environmental Prediction, and university-based units such as University of São Paulo atmospheric science departments. Leadership appointments involve ministers and oversight by the Ministry of Science, Technology and Innovation (Brazil), with advisory boards including representatives from Brazilian Air Force, Civil Aviation Authority (Brazil), and state secretariats like those in Bahia and Minas Gerais. Internal directorates cover forecasting, observations, research, and services to sectors including Brazilian Agricultural Research Corporation (Embrapa), Vale (company), and energy companies such as Petrobras. Field offices coordinate with municipal authorities in cities like Manaus, Belém, Recife, Fortaleza, Porto Alegre, and Belo Horizonte.
Core services parallel functions provided by National Weather Service (United States), Met Éireann, and Japan Meteorological Agency, offering warnings for tropical cyclones, extreme rainfall, drought, and heat waves affecting regions including the Amazon Rainforest, the Pantanal, and the Cerrado. The agency issues aviation meteorological products for airports such as São Paulo–Guarulhos International Airport, Rio de Janeiro–Galeão International Airport, and regional aerodromes used by LATAM Brasil and Gol Linhas Aéreas Inteligentes. It supplies hydrometeorological forecasts used by institutions like ANA (Brazilian National Water Agency), supports agriculture stakeholders such as Cooperativa Central Aurora Alimentos and SENAR, and informs disaster management entities like Civil Defense (Brazil), United Nations Office for Disaster Risk Reduction, and local fire brigades. The agency provides climate data for research centers such as Brazilian National Institute for Space Research and universities including Federal University of Rio de Janeiro and State University of Campinas.
The observational network includes surface synoptic stations, upper-air sounding sites, automatic weather stations, and radar installations inspired by deployments at National Oceanic and Atmospheric Administration and Australian Bureau of Meteorology. Key infrastructure comprises Doppler radars located near metropolitan hubs, a network of radiosonde launches coordinated with World Meteorological Organization standards, oceanographic buoys similar to TAO/TRITON, and satellite reception facilities interoperable with data from GOES, Meteosat, NOAA satellites, and EUMETSAT. Observations feed into data centers that use standards from Global Telecommunication System and exchange with regional systems like RA I and RA II panels. Maintenance partnerships exist with research stations in the Amazon, field campaigns with institutes such as Instituto Nacional de Pesquisas da Amazônia, and collaborations with hydrological networks run by ANA and municipal water authorities.
Forecasting relies on numerical models, assimilation systems and ensemble prediction methods inspired by ECMWF, NCEP/NCAR Reanalysis, and regional models like WRF and COSMO. Research programs address tropical convection, Amazonian land–atmosphere interactions, and coupled ocean–atmosphere phenomena including the El Niño–Southern Oscillation and impacts related to Atlantic Meridional Mode and South Atlantic Convergence Zone. Scientific partnerships span Institute of Atmospheric Physics (China Academy of Sciences), CSIRO, Max Planck Institute for Meteorology, and Brazilian universities such as Federal University of Santa Maria. Long-term climate monitoring contributes to national climate assessments used by IPCC authors, the Ministry of Environment (Brazil), and policymakers addressing the Paris Agreement. The agency runs applied projects on agro-meteorology, air quality linked to episodes in São Paulo (city), and urban heat island studies involving municipal authorities and urban planning institutes.
The agency engages in bilateral and multilateral cooperation with entities including World Meteorological Organization, United Nations Development Programme, Inter-American Development Bank, European Union, and agencies like NOAA and Met Office. Regional ties extend to Mercosur partners, Organization of American States initiatives, and collaborations with national services such as Servicio Meteorológico Nacional (Argentina), INMET (Portugal), and Instituto Nacional de Meteorología (Spain). It contributes to global observing systems, participates in field campaigns with International Research Institute for Climate and Society, and exchanges expertise with aviation bodies like International Civil Aviation Organization.
Controversies have involved debates over budgetary cuts linked to policy shifts in ministries including Ministry of Economy (Brazil), operational centralization controversies similar to disputes seen in UK Met Office and Australian Bureau of Meteorology reorganizations, and public disputes about warning lead times during extreme events affecting Rio Grande do Sul and Santa Catarina. Academic critics from institutions like University of São Paulo and Federal University of Pernambuco have argued for increased transparency and investment in modeling and observational capacity, echoing concerns raised in international reviews of national meteorological services. Legal actions and media scrutiny have referenced incidents where communication with agencies such as Civil Defense (Brazil) and municipal governments was criticized following floods and landslides in regions including Belo Horizonte and Rio de Janeiro (state).
Category:Governmental meteorological agencies