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Read Full Article (file size: 959598 bytes) Cited by
WATER RESOURCES RESEARCH,
VOL. 39, NO. 6,
1141,
doi:10.1029/2002WR001383,
2003
Three-dimensional model of modern channel bend deposits
M. Bayani Cardenas
Department of Geosciences, University of Nebraska at Lincoln, Lincoln, Nebraska, USA
Vitaly A. Zlotnik
Department of Geosciences, University of Nebraska at Lincoln, Lincoln, Nebraska, USA
Abstract
We present a three-dimensional model of heterogeneous modern channel bend deposits developed through purely structure-imitating
interpolation (kriging) of hydraulic properties. This model, augmented with ground-penetrating radar data and directional
variograms, agrees with detailed observations in similar modern environments and leads to a process-based interpretation of
the presented hydraulic conductivity structure. Integration of all available information permitted delineation and characterization
of the modern streambed as a distinct hydrostratigraphic unit without coring or outcrop studies. Our results imply that the
modern streambed is commonly oversimplified in available analytical and numerical models of groundwater-surface water interactions
where it is assumed to be homogeneous and isotropic and characterized by a constant width and thickness. This three-dimensional
approach that integrates concepts and principles developed in sedimentology, hydrogeology, geophysics, and geostatistics has
potential implications on model development of stream-aquifer systems.
Received 15
April
2002;
accepted 13
March
2003;
published 4
June
2003.
Index Terms: 1829 Hydrology: Groundwater hydrology; 1824 Hydrology: Geomorphology (1625); 1815 Hydrology: Erosion and sedimentation; 5114 Physical Properties of Rocks: Permeability and porosity; 1894 Hydrology: Instruments and techniques.
Read Full Article (file size: 959598 bytes) Cited by
Citation: Cardenas, M. B., and V. A. Zlotnik
(2003),
Three-dimensional model of modern channel bend deposits,
Water Resour. Res.,
39(6),
1141,
doi:10.1029/2002WR001383.
Copyright 2003 by the American Geophysical Union.
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