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Section 2  


Arrangements for requesting and receiving atmospheric transport model products from an RSMC

2.1 The "Regional and Global Arrangements" are designed to ensure that the RSMCs' atmospheric transport model products would be effective for, and immediately available to any Member State, in the context of the defined Scope (parag. 1.2). These Arrangements recognize the collective role of the RSMCs, the coordinating role of the WMO, and the international authority of the IAEA for nuclear events. It is the intention of the WMO to designate RSMCs within each of its six Regional Associations so that the provision of atmospheric transport model products for environmental emergency response can be achieved within each Region under specific Regional arrangements and procedures. However, until such time as this is fully attained for all Regions, Global Arrangements are in place. The "Regional and Global Arrangements" are found in Annex 1.

2.1.1 The up-to-date list of designated RSMCs is provided with full contact information in Annex 2. Regular updates to this list is given in the WMO Web Site: http://www.wmo.int/web/www/DPS/gdps-2.html#RSMCs. In Regions where RSMCs have been designated, the Delegated Authority will direct its request to that RSMC(s) according to specific Regional arrangements and procedures.

2.2 When the Delegated Authority or the International Atomic Energy Agency (IAEA) makes the request to the appropriate RSMC, it must provide contact information and event related information as indicated on the "Request for WMO RSMC Support by Delegated Authority" form (referred to as the "Request Form"). The language used for the Request Form is determined within specific Regional arrangements and procedures. A sample form is found in Figure 2 and a blank form is attached in Annex 3.

2.2.1 The essential contact information includes: the Status (indicating event or exercise), date and time of request, published name of the Delegated Authority or IAEA contact , the country or Agency it represents, its telephone and fax numbers and e-mail, the telephone and fax and e-mail of the operational contact point within the requesting country's national meteorological service where the model products will be sent.

2.2.2 The absolutely essential event-related information includes: the name of the release site, and the geographical coordinates of the release. Other event-related information, if unavailable at the time of the request, will be substituted with standard default values. At any time that new information becomes available, it should be provided to the RSMC with an updated Request Form. The model runs will always use the source parameters provided on request form. For the parameters that are unspecified, standard defaults parameters will be used (see Section 4) Starting date/time of release: date/time specified at "START OF RELEASE" on request form or, if not available, the "date/time of request" specified at the top of the request form (see Section 4).


2.2.3 When making a request, the Delegated Authority or IAEA must send the Request Form, at a minimum completed in its first section, to the RSMC. At the same time, the Delegated Authority or IAEA must immediately call the RSMC to confirm the transmission of the Request for RSMC Support. This procedure must be followed in all subsequent updates of new event-related information provided by the Delegated Authority to the RSMC. Confirmation of receipt of the Request (initial and updates) will be provided by the RSMC immediately.

2.3 The RSMC(s) in response to a request for support by the Delegated Authority will produce a default set of output basic products from its Atmospheric Transport Model simulation, based on actual and/or default values of input parameters. These output basic products are defined and presented in section 4 and in Annex 4.

2.3.1 A text statement in conjunction with the basic product outputs may be prepared and provided by the RSMC(s) to the national meteorological service of the requesting country. The statement would describe the Atmospheric Transport Model outputs in relation to the anticipated atmospheric circulation and weather patterns. The performance of NWP models, on which Atmospheric Transport Model simulation is based, may also be discussed.

2.3.2 Other output products based on available data and related to the emergency event may be requested. The RSMC(s) will respond within its operational constraints.

2.4 The Atmospheric Transport Model outputs will only be updated when a new request is received, normally when significant new event-related information becomes available. A new request may also ask for model re-runs when new meteorological Numerical Weather Prediction (NWP) data become available (normally based on 00 UTC and 12 UTC data). A new request will be issued whenever a new re-run is required.

2.5 Distribution of the set of charts and the text joint statement to all NMHSs of the WMO States in the Region(s) of responsibility of each RSMC will only be done if requested by IAEA on the ENVIRONMENTAL EMERGENCY RESPONSE REQUEST FOR WMO RSMC SUPPORT FORM (i.e., action required "ALL RSMCS GENERATE PRODUCTS AND DISTRIBUTE WITHIN THEIR REGIONS" or if specified in "OTHER ACTIONS". See Annex 3).

Figure 2: Example of a Completed Delegated Authority Request Form (PDF Format)





Related items

Section 1


Section 2


Section 3


Section 4


Section 5


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