Ten specialized numerical modelling centres called WMO Regional Specialized Meteorological Centres (RSMCs) are prepared to provide, at all times, highly specialized computer-based simulations of the atmosphere that predicts the long-range movement of airborne radioactivity. These specialized centres, representing complete global coverage 24 hours a day, 365 days a year, are located in the National Meteorological Centres in Beijing (China), Exeter (United Kingdom), Melbourne (Australia), Montreal (Canada), Obninsk (Russian Federation) and Offenbach (Germany) and backtracking only in Tokyo (Japan), Toulouse (France), Vienna (Austria) and Washington (USA). The system also includes a telecommunication gateway at Offenbach (Germany) to provide notifications and real-time information linkage between the Incident and Emergency Centre of the International Atomic Energy Agency (IAEA) and WMO. When requested, these centres provide specialized products within three hours to National Meteorological Centres, and the IAEA.
The WMO Centres also participate in related activities, including of the international Convention on Early Notification of a Nuclear Accident and the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency that are designed to simulate an accident or failure at a nuclear power plant.
WMO is expanding the scope and capabilities of its Emergency Response Activities Programme from its present operational arrangements for nuclear emergencies to include non-nuclear environmental emergencies.