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Validation of the operational emergency response model at the Swedish Meteorological and Hydrological Institute using data from ETEX and the Chernobyl accident
SMHI, Forskningsavdelningen, Luftmiljö.ORCID-id: 0000-0002-2757-2864
SMHI, Forskningsavdelningen, Luftmiljö.
SMHI, Forskningsavdelningen, Luftmiljö.
SMHI, Forskningsavdelningen, Klimatforskning - Rossby Centre.
1998 (engelsk)Inngår i: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 32, nr 24, s. 4325-4333Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The Eulerian atmospheric tracer transport model MATCH (Multiscale Atmospheric Transport and Chemistry model) has been extended with a Lagrangian particle model treating the initial dispersion of pollutants from point sources. The model has been implemented at the Swedish Meteorological and Hydrological Institute in an emergency response system for nuclear accidents and can be activated on short notice to provide forecast concentration and deposition fields. The model has been used to simulate the transport of the inert tracer released during the ETEX experiment and the transport and deposition of Cs-137 from the Chernobyl accident. Visual inspection of the results as well as statistical analysis shows that the extent, time of arrival and duration of the tracer cloud, is in good agreement with the observations for both cases, with a tendency towards over-prediction for the first ETEX release. For the Chernobyl case the simulated deposition pattern over Scandinavia and over Europe as a whole agrees with observations when observed precipitation is used in the simulation. When model calculated precipitation is used, the quality of the simulation is reduced significantly and the model fails to predict major features of the observed deposition held. (C) 1998 Elsevier Science Ltd. All rights reserved.

sted, utgiver, år, opplag, sider
1998. Vol. 32, nr 24, s. 4325-4333
Emneord [en]
nuclear accidents, long-range transport, model validation
HSV kategori
Forskningsprogram
Miljö
Identifikatorer
URN: urn:nbn:se:smhi:diva-1547DOI: 10.1016/S1352-2310(98)00175-7ISI: 000077118300020OAI: oai:DiVA.org:smhi-1547DiVA, id: diva2:850984
Tilgjengelig fra: 2015-09-03 Laget: 2015-08-31 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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