HANDLING “DIRTY BOMB”-SCENARIOS WITH THE LAGRANGIAN PARTICLE MODEL LASAIR
Item
Title (Dublin Core)
eng
HANDLING “DIRTY BOMB”-SCENARIOS WITH THE LAGRANGIAN PARTICLE MODEL LASAIR
Description (Dublin Core)
eng
An existing systems programme (LASAT) based on Lagrangian Particle Simulation has been adjusted to meet requirements
of emergency authorities. The new model (LASAIR, Lagrangian Simulation of the Dispersion and Inhalation of Radionuclides)
is able to simulate an explosion of an RDD (Radiological Dispersion Device) with additional radioactive material and computes
the transport in the planetary boundary layer as well as dry and wet deposition on the ground. In order to assess the main
pathways of radiation exposure to the population, the inhalation, ground- and cloudshine dose to individuals can be computed. The
model has been introduced as a rapid decision support system within the Federal Office for Radiation Protection in Germany. LASAIR
is applied as well in other (EU-) countries.
One of the most interesting features of the model is the basic meteorological input combined with a powerful and well validated
diagnostic flow model and a Lagrangian particle model. LASAIR can be used either as a back-office decision tool or during in
field/on scene operations. LASAIR has a special parameterisation of the initial cloud due to explosive material, which is based on
explosion experiments on test sites of the German Armed Forces in 2003 and 2007.
A comparison to the well known EU-model RODOS as well as to other models (HEAT, HOTSPOT, TATOO) has started in 2008
and first results will be presented. They clearly demonstrate the ability of the Lagrangian Particle Models (LPM) especially compared
to Gaussian Models (GM) or Gaussian Puff Models (GPM).
of emergency authorities. The new model (LASAIR, Lagrangian Simulation of the Dispersion and Inhalation of Radionuclides)
is able to simulate an explosion of an RDD (Radiological Dispersion Device) with additional radioactive material and computes
the transport in the planetary boundary layer as well as dry and wet deposition on the ground. In order to assess the main
pathways of radiation exposure to the population, the inhalation, ground- and cloudshine dose to individuals can be computed. The
model has been introduced as a rapid decision support system within the Federal Office for Radiation Protection in Germany. LASAIR
is applied as well in other (EU-) countries.
One of the most interesting features of the model is the basic meteorological input combined with a powerful and well validated
diagnostic flow model and a Lagrangian particle model. LASAIR can be used either as a back-office decision tool or during in
field/on scene operations. LASAIR has a special parameterisation of the initial cloud due to explosive material, which is based on
explosion experiments on test sites of the German Armed Forces in 2003 and 2007.
A comparison to the well known EU-model RODOS as well as to other models (HEAT, HOTSPOT, TATOO) has started in 2008
and first results will be presented. They clearly demonstrate the ability of the Lagrangian Particle Models (LPM) especially compared
to Gaussian Models (GM) or Gaussian Puff Models (GPM).
Creator (Dublin Core)
Walter, Hartmut
Subject (Dublin Core)
eng
dispersion,Lagrangian particle model;dirty bomb;LASAIR;LASAT; radiation pathway
Publisher (Dublin Core)
Croatian meteorological society
Date (Dublin Core)
2008
Type (Dublin Core)
text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://hrcak.srce.hr/64247
eng
https://hrcak.srce.hr/file/96364
Source (Dublin Core)
Hrvatski meteorološki časopis
ISSN 1330-0083 (Print)
ISSN 1849-0700 (Online)
Volume 43
Issue 43/1
Language (Dublin Core)
eng
Rights (Dublin Core)
info:eu-repo/semantics/openAccess
The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher.