Download or read book An Improved Hydrogeologic Model for Groundwater Flow in the Token Creek Watershed written by Steven Domber and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology and Groundwater Flow Modeling for the Williams Creek Watershed Postville Iowa written by Andrew Goldberg Wallace and published by . This book was released on 2001 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Watershed Models written by Vijay P. Singh and published by CRC Press. This book was released on 2010-09-28 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watershed modeling is at the heart of modern hydrology, supplying rich information that is vital to addressing resource planning, environmental, and social problems. Even in light of this important role, many books relegate the subject to a single chapter while books devoted to modeling focus only on a specific area of application. Recognizing the
Download or read book Hydrogeology and Steady State Numerical Simulation of Groundwater Flow in the Lost Creek Designated Ground Water Basin Weld Adams and Arapahoe Counties Colorado written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-29 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lost Creek Designated Ground Water Basin (Lost Creek basin) is an important alluvial aquifer for irrigation, public supply, and domestic water uses in northeastern Colorado. Urban growth in the adjacent Front Range urban corridor has increased demand for groundwater in the basin, and potential exportation of groundwater from the basin has raised concerns about the long-term sustainability and management of the basin's groundwater resources. Beginning in 2005, the U.S. Geological Survey, in cooperation with the Lost Creek Ground Water Management District and the Colorado Water Conservation Board, collected hydrologic data and constructed a numerical groundwater flow model of the Lost Creek basin. The steady-state model builds upon the work of previous investigators to provide an updated tool for simulating the potential effects of various hydrologic stresses on groundwater flow and evaluating possible aquifer-management strategies.
Download or read book Hydrogeologic Controls on Flow to Frederick Springs in the Pheasant Branch Watershed Middleton Wisconsin written by Kristin Marie Anderson and published by . This book was released on 2002 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of the Groundwater Flow System in the Chambers Clover Creek Watershed and Vicinity Pierce County Washington written by Kenneth H. Johnson and published by CreateSpace. This book was released on 2014-07-10 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: A groundwater-flow model was developed to contribute to an improved understanding of water resources in the Chambers–Clover Creek Watershed. The model covers an area of about 491 square miles in western Pierce County, Washington, and is bounded to the northeast by the Puyallup River valley, to the southwest by the Nisqually River valley, and extends northwest to Puget Sound, and southeast to Tanwax Creek. The Puyallup and Nisqually Rivers occupy large, relatively flat alluvial valleys that are separated by a broad, poorly drained, upland area that covers most of the model area. Chambers and Clover Creeks drain much of the central uplands and flow westward to Puget Sound. The model area is underlain by a northwest-thickening sequence of unconsolidated glacial (till and outwash) and interglacial (fluvial and lacustrine) deposits. Ten unconsolidated hydrogeologic units in the model area form the basis of the groundwater-flow model.
Download or read book Guidelines for Evaluating Ground water Flow Models written by Thomas E. Reilly and published by DIANE Publishing. This book was released on 2004 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology and Simulation of Ground water Flow at Superfund site Wells G and H Woburn Massachusetts written by Virginia De Lima and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Flow Modeling as a Tool to Understand Watershed Geology written by Edward Mehnert and published by . This book was released on 2010 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report to the Legislature written by Wisconsin Groundwater Coordinating Council and published by . This book was released on 2006-08 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Groundwater Modeling written by Mary P. Anderson and published by Academic Press. This book was released on 2015-08-13 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition is extensively revised throughout with expanded discussion of modeling fundamentals and coverage of advances in model calibration and uncertainty analysis that are revolutionizing the science of groundwater modeling. The text is intended for undergraduate and graduate level courses in applied groundwater modeling and as a comprehensive reference for environmental consultants and scientists/engineers in industry and governmental agencies. - Explains how to formulate a conceptual model of a groundwater system and translate it into a numerical model - Demonstrates how modeling concepts, including boundary conditions, are implemented in two groundwater flow codes-- MODFLOW (for finite differences) and FEFLOW (for finite elements) - Discusses particle tracking methods and codes for flowpath analysis and advective transport of contaminants - Summarizes parameter estimation and uncertainty analysis approaches using the code PEST to illustrate how concepts are implemented - Discusses modeling ethics and preparation of the modeling report - Includes Boxes that amplify and supplement topics covered in the text - Each chapter presents lists of common modeling errors and problem sets that illustrate concepts
Download or read book Profile Modeling of Groundwater Flow and Advective Transport Beneath Riparian Buffers in the Bear Creek Watershed written by Cheng Cheng and published by . This book was released on 2005 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Riparian buffers have been introduced as a means of decreasing nitrate concentrations and other nutrients in surface and subsurface runoff from agricultural activities. The goal of this study was to use groundwater flow models to determine possible hydrogeologic controls on the effectiveness of riparian buffers with different thickness and extents of alluvial and glacial units. A steady-state, finite-difference, groundwater flow model was constructed to simulate groundwater flow in profile at the Risdal North site in the Bear Creek watershed. The simulated profile was 155 m long and 1 row wide, and discretized into 62 columns and 14 layers (646 active cells). Four generalized model zones representing unoxidized till, oxidized till, loam and sand were assigned hydraulic conductivity values obtained from previous studies. Recharge rate was assumed to be 10 percent of mean annual precipitation of 82.9 cm and applied on the top layer. The USGS finite-difference model, MODFLOW was used to simulate hydraulic head and the water table. The model was calibrated by trial-and-error, UCODE, and PEST simulations. Calibration results showed good match between observed heads and simulated heads and the mass balance difference between recharge and discharge of the model was 0.03 percent. The USGS particle-tracking code, MODPATH was used to track particles in the groundwater flow system. The results showed that the average residence time was 94 days in the buffer and the source of groundwater contributing to Bear Creek ranged from distances of 8 to 137.5 m from the creek. Eleven generic models were constructed to assess the effects of geology on groundwater flow and residence times. The models used parameters of the calibrated model and hypothetical geologic conditions based on previous studies at the buffers. Results indicated that loam beneath a buffer had long residence time and supported the shallowest water table. Till beneath a buffer showed the shortest residence time. Sand or limestone beneath a buffer produced a deep water table. Based on these results, if long residence times and shallow water table are favorable for denitrification, loam beneath a buffer might provide the best hydrogeologic setting for removal of nitrate from groundwater.
Download or read book Simulation of Ground water Flow Surface water Flow and a Deep Sewer Tunnel System in the Menomonee Valley Milwaukee Wisconsin written by and published by DIANE Publishing. This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Models written by R. G. Thomas and published by . This book was released on 1973 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of types of model used in groundwater studies; hydrogeologic and mathematical background; Description of tyson-weber polygonal node system; Introduction to the square grid finite difference systems; Groundwater basin models using general purpose simulation programmes; Water resources planning and groundwater models.
Download or read book Hydrogeology and Steady State Numerical Simulation of Groundwater Flow in the Lost Creek Designated Ground Water Basin Weld Adams and Arapahoe Counties Colorado written by L. R. Arnold and published by Geological Survey (USGS). This book was released on 2010-01-01 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variability of Groundwater Chemistry in an Agricultural Setting and Implications for Assessing Impacts of Land Use Change written by Jeffrey Douglas Wilcox and published by . This book was released on 2003 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater surface Water Interactions in a Lowland Savanna on the Lower Wisconsin River Floodplain written by Shaili Margreta Pfeiffer and published by . This book was released on 2001 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
