干旱区生态环境知识资源中心(Arid): Independent Review of Simulation of Net Infiltration for Present-Day and Potential Future Climates

Arid

DOI	10.2172/935765
报告编号	08-STRI-0598
来源ID	OSTI_ID: 935765
	Independent Review of Simulation of Net Infiltration for Present-Day and Potential Future Climates
	Review Panel: Soroosh Sorooshian, Ph.D., Panel Chairperson, University of California, Irvine; Jan M. H. Hendrickx, Ph.D., New Mexico Institute of Mining and Technology; Binayak P. Mohanty, Ph.D., Texas A&M University; Scott W. Tyler, Ph.D., University of Nevada, Reno; Tian-Chyi Jim Yeh, Ph.D., University of Arizona -- ORISE Review Facilitators: Robert S. Turner, Ph.D., Technical Review Group Manager, Oak Ridge Institute for Science and Education; Brian R. Herndon, Project Manager, Oak Ridge Institute for Science and Education; Russ Manning, Technical Writer /Editor, Haselwood Enterprises, Inc.
英文摘要	The DOE Office of Civilian Radioactive Waste Management (OCRWM) tasked Oak Ridge Institute for Science and Education (ORISE) with providing an independent expert review of the documented model and prediction results for net infiltration of water into the unsaturated zone at Yucca Mountain. The specific purpose of the model, as documented in the report MDL-NBS-HS-000023, Rev. 01, is 鈥渢o provide a spatial representation, including epistemic and aleatory uncertainty, of the predicted mean annual net infiltration at the Yucca Mountain site ...鈥?(p. 1-1) The expert review panel assembled by ORISE concluded that the model report does not provide a technically credible spatial representation of net infiltration at Yucca Mountain. Specifically, the ORISE Review Panel found that: 鈥?A critical lack of site-specific meteorological, surface, and subsurface information prevents verification of (i) the net infiltration estimates, (ii) the uncertainty estimates of parameters caused by their spatial variability, and (iii) the assumptions used by the modelers (ranges and distributions) for the characterization of parameters. The paucity of site-specific data used by the modeling team for model implementation and validation is a major deficiency in this effort. 鈥?The model does not incorporate at least one potentially important hydrologic process. Subsurface lateral flow is not accounted for by the model, and the assumption that the effect of subsurface lateral flow is negligible is not adequately justified. This issue is especially critical for the wetter climate periods. This omission may be one reason the model results appear to underestimate net infiltration beneath wash environments and therefore imprecisely represent the spatial variability of net infiltration. 鈥?While the model uses assumptions consistently, such as uniform soil depths and a constant vegetation rooting depth, such assumptions may not be appropriate for this net infiltration simulation because they oversimplify a complex landscape and associated hydrologic processes, especially since the model assumptions have not been adequately corroborated by field and laboratory observations at Yucca Mountain.
出版年	2008
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; CLIMATES ; EDUCATION ; FORECASTING ; IMPLEMENTATION ; PLANTS ; RADIOACTIVE WASTE MANAGEMENT ; SIMULATION ; SOILS ; VALIDATION ; VERIFICATION ; WATER ; YUCCA MOUNTAIN
URL	http://www.osti.gov/scitech/servlets/purl/935765
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/269649
推荐引用方式 GB/T 7714	Review Panel: Soroosh Sorooshian, Ph.D., Panel Chairperson, University of California, Irvine,Jan M. H. Hendrickx, Ph.D., New Mexico Institute of Mining and Technology,Binayak P. Mohanty, Ph.D., Texas A&M University,et al. Independent Review of Simulation of Net Infiltration for Present-Day and Potential Future Climates,2008.