HR: 0800h
AN: H21B-1012    [Abstracts]
TI: Model Development Framework for the Groundwater/Surface Water Interface: Approaches, Concerns and Challenges
AU: * Palakodeti, R C
EM: ravi.c.palakodeti@vanderbilt.edu
AF: Vanderbilt University, Department of Civil and Environmental Engineering, Vanderbilt University, VU Station B 351831, 2301 Vanderbilt Place, Nashville,, TN 37235-1831 United States
AU: LeBoeuf, E J
EM: eugene.j.leboeuf@vanderbilt.edu
AF: Vanderbilt University, Department of Civil and Environmental Engineering, Vanderbilt University, VU Station B 351831, 2301 Vanderbilt Place, Nashville,, TN 37235-1831 United States
AU: Clarke, J H
EM: james.h.clarke@vanderbilt.edu
AF: Vanderbilt University, Department of Civil and Environmental Engineering, Vanderbilt University, VU Station B 351831, 2301 Vanderbilt Place, Nashville,, TN 37235-1831 United States
AU: Chien, C C
EM: Calvin.C.Chien@USA.dupont.com
AF: DuPont Engineering, Corporate Remediation, Barley Mill Plaza 27-2128, Wilmington, DE 19880-0027 United States
AU: Bartlett, C L
EM: Craig.L.Bartlett@USA.dupont.com
AF: DuPont Engineering, Corporate Remediation, Barley Mill Plaza 27-2128, Wilmington, DE 19880-0027 United States
AU: Grosso, N R
EM: Nancy.R.Grosso@USA.dupont.com
AF: DuPont Engineering, Corporate Remediation, Barley Mill Plaza 27-2128, Wilmington, DE 19880-0027 United States
AB: The need and ability to understand contaminant transport across the groundwater/surface water interface (GWSI) is an important part of overall human health and environmental risk assessment. Model development and enhancement for GWSI may best be approached from a systems-based development of a framework that assists in guiding regulatory agencies and interested parties in identifying existing tools, and needed capabilities for contaminated sites of concern that are close to a surface water body. In this context, modeling approaches for groundwater/surface water interactions in the stream/river, estuarine, and lacustrine environments are presented, systematically classified, and critiqued so as to understand the needs for future model development. Primary issues requiring resolution at present are identified as (i) linking large-scale flow and transport models to process-level models; (ii) defining groundwater/surface-water interactions in a spatial and temporal framework; (iii) defining GWSI; and (iv) techniques of scaling-up for process-level models. The objective of this work is to develop a roadmap to achieve modeling capabilities that will enable a scientifically-defensible and cost-effective evaluation of contaminant fate and transport at and across the groundwater/surface water interface.
DE: 1829 Groundwater hydrology
DE: 1831 Groundwater quality
DE: 1860 Runoff and streamflow
DE: 1871 Surface water quality
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting