Implementation of a new in-cloud wet deposition scheme into the ldX operational transport modelling
Résumé
Wet deposition is a key element of the atmospheric transport and deposition modelling. Following the
emission and the transport, it is the final process to obtain a map of deposit consecutive to an accidental release. The operational wet deposition schemes of the atmospheric transport modelling are currently rough because a greater accuracy is not required considering the uncertainties on the source term and the meteorological data. However, meteorological data are improving in term of resolution and quality. As a result of this improvement, it may become relevant to use a finer in-cloud wet deposition model, dealing explicitly with the vertical composition of the cloud and the precipitation. In this study, the impact of the integration of the vertical profile of cloud water content and precipitating water is examined on Cs-137 deposition of the Fukushima case. Results show an impact on the final deposit by using vertically resolved deposition schemes. However, these wet deposition schemes will require significant future improvements.
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification