SYMBIOSE A Modeling & Simulation Platform for E nvironmental P P Pollutant R isk A ssessment CHEN Victor Tao, GARCIA-SANCHEZ Laurent, GONZE Marc-André , LE DIZES Séverine, METIVIER Jean-Michel, MOURLON Christophe IRSN Cadarache Sponsored by EDF (Electricité de France) Goldsim User Conference Las Vegas (Nevada), October 10-13, 2004
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SYMBIOSE
A Modeling & Simulation Platform for Environmental PPPPollutant Risk Assessment
Goldsim User Conference Las Vegas (Nevada), October 10-13, 2004
Rappel titre - date- N°X/Y
I. Environmental Pollutant Risk Assessment (ERA)
II. Modeling Approach
III. Implementation in Goldsim
IV. Application
V. Conclusion
SYMBIOSE – Goldsim User Conference 2004
Plan
Rappel titre - date- N°X/Y
Some scenarios of interest
Nuclear accident (crisis)• Acute release from a Nuclear Power Plant (NPP)• Fate & transport of radionuclides in the neighboring continental environment
(30 km, 3 years) • Dose to man • Efficiency of protection actions
ERA 1
SYMBIOSE – Goldsim User Conference 2004
Normal releases • Long-term, low-level discharge of pollutants from a Waste Disposal Facility• Fate & transport of pollutants in semi-natural ecosystems & geosphere• Dose to fauna & flora• Effects on biota populations (mortality & reproduction rates, etc.)
Rappel titre - date- N°X/Y
Trends in ERA modeling
1. Integration• Human Health &Biota Protection • Radiological & chemical risk • Multiple interacting media, spatially-distributed & dynamic systems• Parametric vs structural uncertainties
ERA 2
2. Modularity• Easy building of specific simulators • Library of reusable modules• Alternative modules (varying levels of complexity)
3. Transparency (& Traceability)• Modules content (structure, data & methods) • Down to an appropriate level• Reinforce confidence & credibility
• Autonomous, reusable, plugable software component • Encapsulates all relevant data, information & calculation • Provides users/rest of the system with a specific service
SYMBIOSE – Goldsim User Conference 2004
2. Scientific
• TASK
• Pollutant dynamics, fluid/ecological dynamics, …• Dose, effect calculation, …• Information processing, system analysis, …
• DOMAIN
• Material system : (a)biotic compartments, migration & exchange processes• Chemical system : species, physico-chemical forms & processes• Time frame : window, continous/discrete…type, step size, …• Space frame : coverage, network/grid...type, dimension, mesh size, …
Rappel titre - date- N°X/Y
!m_Modulem_Riverm_Riverm_Riverm_River
Implementation in Goldsim 3
Compute :• Water dynamics (hydraulics)• Sediment dynamics• Radionuclide dynamics
TASK
MaterialRIVER
SYSTEM
RAW WATER
WATER Advection Dispersion
Sorption-Desorption
Sorption-Desorption
Sorption-Desorption
Accumulation OutwardMig ration
SUSPENDED MATTER
ABIOTIC Advection Dispersion
Deposition Ingestion OutwardMig ration
PHYTO-PLANKTON
Advection Dispersion
Deposition Ingestion OutwardMig ration
BedErosion BOTTOM SEDIMENT
ingestion
ANIMAL TROPHIC
CHAIN
Excretion
InwardMig ration
InwardMig ration
InwardMig ration
REST Of RIVER
SYSTEM
RunOff Deposition
Erosion REST Of BIOSPHE
RE
12
345
6
789
10
111213
141516
1720
1918
1
45
3 2
678
910
12
345
6
789
10
111213
141516
1720
1918
1
45
3 2
678
910
Space1D Network Smallest resolved scale ~ 103m
Window = Hydrological season Continuous solutionSmallest resolved scale ~ 0.25hour
Time
137Cs, 106Ru, …Radioactive decay
Chemical
SYMBIOSE – Goldsim User Conference 2004
Rappel titre - date- N°X/Y
!m_Modulem_Riverm_Riverm_Riverm_River
Implementation in Goldsim 4
RIVER SYSTEMRIVER SYSTEM
!Calculator
!In Viewer
Listener
!Out
i HelpHelp
SYMBIOSE – Goldsim User Conference 2004
Rappel titre - date- N°X/Y
Coupling ModulesImplementation in Goldsim 5
SYMBIOSE – Goldsim User Conference 2004
Module 2Module 2
Viewer
Listener
!Out!
Calculator!In
Module 1Module 1
!Calculator
Listener
!Out
!In Viewer
!m_Modulea_Adapter
Adapter Adapter
Calculator
In
Out
If domain1 <> Domain2If Domain1 <> Domain2
through Adapters
Rappel titre - date- N°X/Y
RIVER SYSTEMRIVER SYSTEM
!Calculator
!In Viewer
Listener
!Out
i HelpHelp
Implementation in Goldsim 6
Nesting Modules
BIOTABIOTA
!Calculator
!In Viewer
Listener
!Out_
i HelpHelpANIMAL FOOD CHAIN
SYMBIOSE – Goldsim User Conference 2004
Radionuclide concentrations in water, sediment, etc.
Rappel titre - date- N°X/Y
Application 1
SYMBIOSE – Goldsim User Conference 2004
Rappel titre - date- N°X/Y
Application 2
SYMBIOSE – Goldsim User Conference 2004
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Application 3
SYMBIOSE – Goldsim User Conference 2004
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Application 4
SYMBIOSE – Goldsim User Conference 2004
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Soil contamination (t=2 years)137CsSurface layer
Rooting layer 137Cs
Application 5
SYMBIOSE – Goldsim User Conference 2004
Rappel titre - date- N°X/Y
A few words to conclude …
1. Prospective developments
• Module library enrichment• Spatial pre/post-processing• Information Management System
• Relational-Object Data Base• Web technologies
… Thank you for your attention
Conclusion
2. Interactions with other projects10
• ERICA (EC Program, ~15 organizations)
• Development of an integrated framework & tool for Ecological Risk Assessment
• ECOLEGO (Facilia, Sweden)
• Development of an integrated assessment tool under Matlab/Simulink/Java • Sponsored by SSI (Sweden), NRPA (Norway), POSIVA (Finland)
SYMBIOSE – Goldsim User Conference 2004
ANNEXE
Rappel titre - date- N°X/Y
Institute for Radiological Protection & Nuclear Safety
1. Who are we ?• Public establishment of an industrial & commercial nature • Joint authority of the Ministers of Defense, Environment, Industry,
Research & Health • 1500 experts & researchers• Budget : 250 MEuros
2. Missions• Technical support to the public authority• Research & Expertise within the fields of
• Nuclear safety• Protection against ionizing rays • Control & protection of nuclear materials • Protection against acts of malevolence