At the 4th session of the Joint WMO-IOC Technical Commission for Oceanography and Marine Meteorology (JCOMM-4, May 2012), Members / Member States agreed that JCOMM should take a proactive role in supporting Members / Member States to respond to marine environmental emergencies. This should include supporting responsible centres to extend their technical capabilities, exchange diagnostic and forecast data, as well as provide enhanced coordination for services and information provision in a way that meets requirements as defined by the International Atomic Energy Agency (IAEA) and International Maritime Organization (IMO). A system that tracks oceanic radioactive plumes using dispersion modelling should leverage the existing framework for tracking atmospheric radioactive hazards in operational NWP centres, operated in conjunction with atmospheric dispersion modelling infrastructures and expertise. To pursue this objective during the intersessional period (2012 – 2017), the ad hoc Task Team was established to requested to undertake the specific set of work within the defined time period to prepare a proposal to the WMO Congress (2015) on an enhanced coordination framework for marine environmental emergency responses. This first ad hoc Task Team meeting is being held in conjunction with the Consultants meeting on marine and aquatic modelling for radiological emergencies (29-31 July 2013, Vienna, Austria), coordinated and convened by the International Atomic Energy Agency (IAEA).

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