Improved source term description in Eulerian models in ARGOS
| Autor: | J. Bartnicki, J. E. Dyve, Heiko Klein |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Mathematical optimization
010504 meteorology & atmospheric sciences Renewable Energy Sustainability and the Environment Computer science Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Inverse Eulerian path 010501 environmental sciences Atmospheric dispersion modeling Hybrid approach 01 natural sciences Term (time) Footprint symbols.namesake Nuclear Energy and Engineering symbols Point (geometry) Safety Risk Reliability and Quality Waste Management and Disposal Algorithm Lagrangian 0105 earth and related environmental sciences |
| Zdroj: | Radioprotection. 51:S125-S127 |
| ISSN: | 1769-700X 0033-8451 |
| DOI: | 10.1051/radiopro/2016047 |
| Popis: | Atmospheric dispersion models can be formulated and implemented in two different ways, e.g. as Eulerian and Lagrangian models. These implementations have both advantages and disadvantages concerning numerical requirements and accuracy. A combination of both implementations – a hybrid approach is also possible and, we show some improvement to a pure approach, when using this method. In many practical cases of measured radioactive air concentrations, the source time and location is not known. Inverse modelling can be used to help identifying the source. Using a simplified footprint analysis, it is even possible to combine the information from several measurement stations to get an improved picture over possible sources from an atmospheric point of view. |
| Databáze: | OpenAIRE |
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