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DT: Monographic; Serial; Thesis <br /> CC: 02-Geochemistry; 07-Marine-geology-and-oceanography <br /> SB: B; Bibliography and Index of Geology (1969-present) <br /> IS: 0341-8561 <br /> GEOREF Disc 3 <br /> 14 of 60 <br /> AN: 89-71775 <br /> TI: Model calibration with the aid of an in-situ tracer test; a <br /> case study. <br /> AU: Dumas-Leslie <br /> SO: Anonymous. Tracers in hydrogeology; principles, problems, and <br /> practical applications. Ground-Water. 27. (5) . p. 724 <br /> CO: GRWAAP <br /> YR: 1989 <br /> CN: Tracers in hydrogeology; principles, problems, and practical <br /> applications, Houston, TX, Oct. 30-Nov. 1, 1989 <br /> LA: English <br /> DE: California-; hydrogeology-; ground-water; <br /> Stanislaus-County-California; Pacific-Coast; Western-U.S. ; <br /> United-States; tracers-; unconfined-aquifers; case-studies; <br /> sodium-bromide; porosity-; dispersivity-; data-processing; <br /> Modesto-California <br /> DT: Analytic; Serial; Conference publication; Abstract <br /> CC: 21-Hydrogeology-and-hydrology <br /> SB: B; Bibliography and Index of Geology (1969-present) <br /> IS: 0017-467X <br /> GEOREF Disc 2 <br /> 15 of 60 <br /> AN: 87-25340 <br /> TI: A natural gradient experiment on solute transport in a sand <br /> aquifer; 2, Spatial moments and the advection and dispersion of <br /> nonreactive tracers. <br /> AU: Freyberg-David-L <br /> OS: Stanford Univ. , Dep. Civ. Eng. , Stanford, CA, United-States <br /> SO: Water-Resources-Research. 22. (13) . p. 2031-2046. <br /> 25 Refs. <br /> CO: WRERAQ <br /> YR: 1986 <br /> PD: illus. , 3 tables <br /> LA: English <br /> AB: The three-dimensional movement of a tracer plume containing <br /> bromide and chloride is investigated using the data base from a <br /> large-scale natural gradient field experiment on groundwater <br /> solute transport. The analysis focuses on the zeroth-, first-, <br /> and second-order spatial moments of the concentration <br /> distribution. These moments define integrated measures of the <br /> dissolved mass, mean solute velocity, and dispersion of the <br /> plume. Moments are estimated from the point observations using <br /> quadrature approximations tailored to the density of the sampling <br /> network. The estimators appear to be robust with acceptable <br /> sampling variability. Estimates of the mass in solution for both <br /> bromide and chloride demonstrate that the tracers behaved <br /> END HYDRO-SEARCHAG A Tetra Tech Company <br />