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HERO ID
1425570
Reference Type
Technical Report
Title
Comprehensive Strategy of Hydrogeologic Modeling and Uncertainty Analysis for Nuclear Facilities and Sites
Author(s)
Newman, SP; Wierenga, PJ
Year
2003
Report Number
NTIS/02925382
Volume
GRA and I
Issue
GRA and I
Abstract
This report describes a strategy that embodies a systematic and comprehensive a pproach to hydrogeologic conceptualization, model development and predictive uncertainty analysis. The strategy is comprehe nsive in that it considers all stages of model building and accounts jointly for uncertainties that arise at each of them. The stages include regional and site characterization, hydrogeologic conceptualization, development of conceptual-mathematical model structure, parameter estimation on the basis of monitored system behavior, and assessment of predictive uncertainty. In addi tion to parameter uncertainty, the strategy concerns itself with uncertainties arising from incomplete definitions of (1) t he conceptual framework that determines model structure, (2) spatial and temporal variations in hydrologic variables that are either not fully captured by the available data or not fully resolved by the model, and (3) the scaling behavior of hydrogeologic variables. The strategy is generic but designed to be of practical use to NRC licensing staff in their review of decommissionin g plans, and performance assessment of high-level and low-level radioactive waste disposal sites as well as uranium recovery facilities. An important component of the strategy is a systematic sequence of logical questions, guidelines and criteria with analytical methods appropriate for NRC review and performance evaluation.
Keywords
Nuclear facilities
;
*Hydrogeology
;
*Uncertainty
;
*Ground water
;
*Water flow
;
Computerized simulation
;
Performance evaluation
;
Site characterization
;
Transport
;
Nuclear waste disposal
;
Hydrology
Tags
IRIS
•
Uranium
Toxline
Merged reference set
Secondary Refinement
Retained for manual screening
Excluded:
Not chemical specific
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