Physics
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.2321e&link_type=abstract
Geophysical Research Letters, Volume 25, Issue 13, p. 2321-2324
Physics
1
Hydrology: Groundwater Hydrology, Hydrology: Groundwater Transport, Hydrology: Stochastic Processes
Scientific paper
Spatial variation of hydraulic conductivity is often assumed to follow patterns of sediment texture. This study examines whether sediment texture observed in cores and outcrops can be used to infer spatial correlation of hydraulic conductivity. The measures of spatial correlation that we consider, correlation length and Hurst coefficient, are commonly used for interpolating conductivity at unmeasured locations and making stochastic estimates of dispersivity. Results indicate that, when comparing hydraulic conductivity values derived from sediment texture to those measured by pumping tests, horizontal correlation lengths are approximately the same but vertical correlation does not correspond well. The results also suggest that sediment information may be useful for setting spatial limits to scaling behavior that is assumed with fractal interpretation of hydraulic conductivity variability.
Eggleston Jack
Rojstaczer Stuart
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