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RECORD NUMBER: 33 OF 38

Main Title Stochastic prediction of dispersive contaminant transport /
Author Vomvoris, Efstratios G. ; Gelhar, L. W.
Other Authors
Author Title of a Work
Gelhar, L. W.
CORP Author Massachusetts Inst. of Tech., Cambridge. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. EPA,
Year Published 1986
Report Number EPA/600/2-86/114
Stock Number PB87-141479
OCLC Number 15342147
Subjects Stochastic processes ; Aquifers--Mathematical models
Additional Subjects Stockastic processes ; Aquifers--Mathematical models ; Air pollution ; Plumes ; Environmental transport ; Concentration(Composition) ; Mathematical models ; Stochastic processes ; Dispersion
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101VXCM.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELBD ARCHIVE EPA 600-2-86-114 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
EMBD  EPA/600/2-86/114 NRMRL/GWERD Library/Ada,OK 11/29/1991
ERAD  EPA 600/2-86-014 Region 9 Library/San Francisco,CA 10/04/2012
NTIS  PB87-141479 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 91 pages : illustrations ; 28 cm
Abstract
The objective of the research agreement was to develop mathematical models to quantify the concentration variability observed in field measurements of concentration plumes. The concentration variability is attributed mainly to spatial heterogeneity of the hydraulic conductivity field. Since there is limited information about actual distributions of hydraulic conductivity in a given site, the log-hydraulic conductivity is modeled as a three-dimensional anisotropic stationary random process. It is shown that the concentration variance, which measures the intensity of the variations, is proportional to the mean concentration gradient and to the variance and correlation scales of the log-hydraulic conductivity; it is inversely proportional to the local dispersivity values. Analysis of a portion of the data from the Canadian Forces Base, Borden, Ontario, shows the applicability of the developed results in field situations. Simple analytical examples demonstrate the way to use the results in a predictive context.
Notes
"Cooperative agreement CR-811135-01-2." "December 1986." "PB87-141479." "EPA/600/2-86/114." Includes bibliographical references (pages 69-73).