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Author : Per Bjarne Bro
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.E/5 ( download)
Download or read book Spatial Variability and Measurement of Hydraulic Conductivity for Drainage Design written by Per Bjarne Bro and published by . This book was released on 1984 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.3/5 (91 download)
Download or read book Macrodispersion and Spatial Variability of Hydraulic Conductivity in a Sand and Gravel Aquifer, Cape Cod, Massachusetts written by and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alice Jane Jones
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (849 download)
Download or read book Spatial Variability of Hydraulic Conductivity and Related Field Soil Water Fluxes written by Alice Jane Jones and published by . This book was released on 1982 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Robert Williams
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (748 download)
Download or read book Spatial Variability of Unsaturated Hydraulic Conductivity of Tipton Soil Series written by Joseph Robert Williams and published by . This book was released on 1980 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jala David Jabro
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (78 download)
Download or read book Spatial Variability of Field-saturated Hydraulic Conductivity and Simulation of Water Flow from a Percolation Test Hole in Layered Soil written by Jala David Jabro and published by . This book was released on 1988 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. H. Benson
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)
Download or read book Variability of Saturated Hydraulic Conductivity Measurements Made Using a Flexible-Wall Permeameter written by C. H. Benson and published by . This book was released on 2016 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted following the procedures in ASTM E691-14 (Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method) to develop a precision statement for hydraulic conductivity measurement of fine-grained soils using Method C (falling head, rising tailwater elevation) of ASTM D5084-10 (Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter). Twelve laboratories conducted tests on three replicate specimens of three fine-grained soils (9 specimens total per laboratory) from the ASTM Reference Soils Program: Soil ML (silt), Soil CL (low plasticity clay), and Soil CH (high plasticity clay). The data indicated that the measurement variability for hydraulic conductivity is modest but not negligible, and probably contributes to the spatial variability reported in past studies of hydraulic conductivity. No systematic relationships were observed between variability in hydraulic conductivity and testing time (consolidation, permeation), backpressure, B-coefficient achieved at end of consolidation, compliance with the termination criteria, or specimen compaction conditions. Many laboratories did not comply with the test standard or the supplemental instructions, which may indicate that greater oversight of geotechnical laboratories is needed via accreditation and auditing programs. Analysis of the data indicate that hydraulic conductivity can be measured using Method C of ASTM D5084 within a factor of 2 for the 10-6 cm/s range, a factor of 1.5 for the 10-8 cm/s range, and a factor of 4 for the 10-9 cm/s range.
Author : Wilson Agyei Agyare
Publisher : Cuvillier Verlag
ISBN 13 : 3865371000
Total Pages : 211 pages
Book Rating : 4.8/5 (653 download)
Download or read book Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana written by Wilson Agyei Agyare and published by Cuvillier Verlag. This book was released on 2004 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the key parameters in hydrological and climate change modeling is a good estimation of the soil hydrauic properties in the region of interest. This study investigates the spatial distribution and variability of soil physical properties, with emphasis on saturated hydraulic conductivity at two pilot sites in the Volta Basin of Ghana. It focuses on the potential of pedotransfer functions (PTFs) and artificial neural network (ANN) approach for estimating saturated hydraulic conductivity. Saturated hydraulic conductivity was observed to be highly spatially variable; however, it can be estimated using selected PTFs and ANN for soils in the Volta Basin based on soil parameters that can readily be obtained from detailed soil maps--From cover.
Author : Linnea Fossum Eng
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (33 download)
Download or read book Spatial Variability of Hydraulic Conductivity in a Coastal Plain Aquifer written by Linnea Fossum Eng and published by . This book was released on 1995 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Spatial variability of hydraulic conductivity and radionuclide distribution coefficients at a field site : measurements and mathematical transport simulations : research proposal submitted to Atomic Energy of Canada Ltd written by and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B.P. Mohanty
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (128 download)
Download or read book Spatial Variability of Saturated Hydraulic Conductivity Under No-tillage System written by B.P. Mohanty and published by . This book was released on 1989 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Baxter E. Vieux
Publisher : Springer Science & Business Media
ISBN 13 : 9401597103
Total Pages : 303 pages
Book Rating : 4.4/5 (15 download)
Download or read book Distributed Hydrologic Modeling Using GIS written by Baxter E. Vieux and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: During ten years serving with the USDA Soil Conservation Service (SCS), now known as the Natural Resources Conservation Service (NRCS), I became amazed at how millions of dollars in contract monies were spent based on simplistic hydrologic models. As project engineer in western Kansas, I was responsible for building flood control dams (authorized under Public Law 566) in the Wet Walnut River watershed. This watershed is within the Arkansas-Red River basin, as is the Illinois River basin referred to extensively in this book. After building nearly 18 of these structures, I became Assistant State Engineer in Michigan and, for a short time, State Engineer for NRCS. Again, we based our entire design and construction program on simplified relationships variously referred to as the SCS method. I recall announcing that I was going to pursue a doctoral degree and develop a new hydrologic model. One of my agency's chief engineers remarked, "Oh no, not another model!" Since then, I hope that I have not built just another model but have significantly advanced the state of hydrologic modeling for both researchers and practitioners. Using distributed hydrologic techniques described in this book, I also hope one day to forecast the response of the dams I built.
Author : Suresh Kumar Gupta
Publisher : Concept Publishing Company
ISBN 13 : 9788170220268
Total Pages : 680 pages
Book Rating : 4.2/5 (22 download)
Download or read book Global Research on Drainage in Agriculture written by Suresh Kumar Gupta and published by Concept Publishing Company. This book was released on 1987 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.F/5 ( download)
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1998 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 962 pages
Book Rating : 4.3/5 (91 download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael L. Strobel
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book Spatial Variation in Saturated Hydraulic Conductivity of Sediments at a Crude-oil Spill Site Near Bemidji, Minnesota written by Michael L. Strobel and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rike Becker
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (17 download)
Download or read book Spatial Variability of Surface and Subsurface Saturated Hydraulic Conductivity in a Semi-Arid Region: Results from a Field Campaign written by Rike Becker and published by . This book was released on 2016 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accurate estimation of saturated hydraulic conductivity (Ks) is of high relevance to correctly reproduce water movement in hydrological simulations. Yet, estimation of Ks is challenging particularly in semi-arid regions with particular soil surface characteristics like crusting and sealing. This study presents results of a field campaign in the semi-arid Walnut Gulch Experimental Watershed, Arizona (US), where surface and subsurface Ks measurements were undertaken across the watershed. Results reveal that the following commonly-used assumptions used in estimation of Ks are not plausible in such regions: (i) Ks decreases with increasing soil depth, (ii) soils with coarse-grained texture (sandy loam) have higher surface Ks values compared to relatively fine-grained texture (fine sandy loam), and (iii) pedo-transfer functions are not reliable methods of estimating Ks. Our results also reveal that remote sensing data can provide useful information for estimation of surface and subsurface Ks values.
Author : Martha A. Scholl
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)
Download or read book Spatial Variation in Hydraulic Conductivity Determined by Slug Tests in the Canadian River Alluvium Near the Norman Landfill, Norman, Oklahoma written by Martha A. Scholl and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
