overview of Task 6 of the Äspö Task Force: modelling groundwater and solute transport: improved understanding of radionuclide transport in fractured rock
An overview is presented of a 4-year study by the Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes, whose primary aim was to build a bridge between the approaches used for site characterisation (SC) and performance assessment (PA) associated with nuclear waste repositories....
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| Veröffentlicht in: | Hydrogeology journal 2009-07, Vol.17 (5), p.1035-1049 |
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| container_title | Hydrogeology journal |
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| creator | Hodgkinson, David Benabderrahmane, Hakim Elert, Mark Hautojärvi, Aimo Selroos, Jan-Olof Tanaka, Yasuharu Uchida, Masahiro |
| description | An overview is presented of a 4-year study by the Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes, whose primary aim was to build a bridge between the approaches used for site characterisation (SC) and performance assessment (PA) associated with nuclear waste repositories. Eleven modelling teams representing six national radioactive waste organisations participated in eight modelling exercises whose objectives were: to assess simplifications used in PA models; to determine how, and to what extent, experimental tracer and flow experiments can constrain the range of parameters used in PA models; to support the design of SC programmes to assure that the results have optimal value for PA calculations; and to improve the understanding of site-specific flow and transport behaviour at different scales using SC models. The modelling tasks were concerned with flow and transport through single and multiple near-planar features on SC and PA timescales, including the diffusion of solutes into multiple immobile zones adjacent to fracture surfaces. In general, tracer tests provide only limited quantitative constraints on retention parameter values relevant to PA but nevertheless provide insight about the flow and transport processes, which is a key element of the bridge between SC and PA. |
| doi_str_mv | 10.1007/s10040-008-0416-9 |
| format | Article |
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Eleven modelling teams representing six national radioactive waste organisations participated in eight modelling exercises whose objectives were: to assess simplifications used in PA models; to determine how, and to what extent, experimental tracer and flow experiments can constrain the range of parameters used in PA models; to support the design of SC programmes to assure that the results have optimal value for PA calculations; and to improve the understanding of site-specific flow and transport behaviour at different scales using SC models. The modelling tasks were concerned with flow and transport through single and multiple near-planar features on SC and PA timescales, including the diffusion of solutes into multiple immobile zones adjacent to fracture surfaces. 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J</stitle><date>2009-07-01</date><risdate>2009</risdate><volume>17</volume><issue>5</issue><spage>1035</spage><epage>1049</epage><pages>1035-1049</pages><issn>1431-2174</issn><eissn>1435-0157</eissn><abstract>An overview is presented of a 4-year study by the Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes, whose primary aim was to build a bridge between the approaches used for site characterisation (SC) and performance assessment (PA) associated with nuclear waste repositories. Eleven modelling teams representing six national radioactive waste organisations participated in eight modelling exercises whose objectives were: to assess simplifications used in PA models; to determine how, and to what extent, experimental tracer and flow experiments can constrain the range of parameters used in PA models; to support the design of SC programmes to assure that the results have optimal value for PA calculations; and to improve the understanding of site-specific flow and transport behaviour at different scales using SC models. The modelling tasks were concerned with flow and transport through single and multiple near-planar features on SC and PA timescales, including the diffusion of solutes into multiple immobile zones adjacent to fracture surfaces. In general, tracer tests provide only limited quantitative constraints on retention parameter values relevant to PA but nevertheless provide insight about the flow and transport processes, which is a key element of the bridge between SC and PA.</abstract><cop>Berlin/Heidelberg</cop><pub>Berlin/Heidelberg : Springer-Verlag</pub><doi>10.1007/s10040-008-0416-9</doi><tpages>15</tpages></addata></record> |
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| identifier | ISSN: 1431-2174 |
| ispartof | Hydrogeology journal, 2009-07, Vol.17 (5), p.1035-1049 |
| issn | 1431-2174 1435-0157 |
| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Aquatic Pollution Earth and Environmental Science Earth Sciences Fractured rocks Fractures Geology Geophysics/Geodesy Groundwater flow Hydrogeology Hydrology Hydrology/Water Resources Numerical modelling Performance assessment Radioactive wastes Solute movement Solute transport Solutes Transport processes Waste Water Technology Water Management Water Pollution Control Water Quality/Water Pollution Äspö Task Force |
| title | overview of Task 6 of the Äspö Task Force: modelling groundwater and solute transport: improved understanding of radionuclide transport in fractured rock |
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