Download or read book Assessment of Groundwater surface water Interaction and Simulation of Potential Streamflow Depletion Induced by Groundwater Withdrawal Uinta River Near Roosevelt Utah written by Patrick M. Lambert and published by . This book was released on 2011 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Groundwater surface Water Interaction and Simulation of Potential Streamflow Depletion Induced by Groundwater Withdrawal Uinta River Near Roosevelt Utah written by U.S. Department of the Interior and published by . This book was released on 2014-10-09 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roosevelt City, Utah, asserts a need for an additional supply of water to meet municipal demands and has identified a potential location for affectional groundwater development at the Sprouse well field near the West Channel of the Uinta River.

Download or read book Colorado Water written by and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scope of [Colorado Water] is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.

Download or read book A Precipitation runoff Model for Analysis of the Effects of Water Withdrawals on Streamflow Ipswich River Basin Massachusetts written by Phillip J. Zarriello and published by . This book was released on 2000 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: ...Water withdrawals from the Ipswich River Basin affect aquatic habitat, water quality, and recreational use of the river; describes the development, calibration and limitations of a precipitation-runoff model, and simulations made with the model to determine the effects of water use and land use patterns on streamflows; also describes the study area, the data used in the model and the methods used to obtain those data and the methods used to estimate the effects of the pumping of wells on streamflow...

Download or read book Groundwater surface Water Interaction written by Corinna Abesser and published by . This book was released on 2008 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected papers from a symposium on A new Focus on Integrated Analysis of Groundwater-Surface Water Systems, held during the International Union of Geodesy and Geophysics XXIV General Assembly in Perugia, Italy, 11-13 July 2007.

Download or read book Groundwater Simulation and Management Models for the Upper Klamath Basin Oregon and California written by Marshall W. Gannett and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The upper Klamath Basin encompasses about 8,000 square miles, extending from the Cascade Range east to the Basin and Range geologic province in south-central Oregon and northern California. The geography of the basin is dominated by forested volcanic uplands separated by broad interior basins. Most of the interior basins once held broad shallow lakes and extensive wetlands, but most of these areas have been drained or otherwise modified and are now cultivated. Major parts of the interior basins are managed as wildlife refuges, primarily for migratory waterfowl. The permeable volcanic bedrock of the upper Klamath Basin hosts a substantial regional groundwater system that provides much of the flow to major streams and lakes that, in turn, provide water for wildlife habitat and are the principal source of irrigation water for the basin's agricultural economy. Increased allocation of surface water for endangered species in the past decade has resulted in increased groundwater pumping and growing interest in the use of groundwater for irrigation. The potential effects of increased groundwater pumping on groundwater levels and discharge to springs and streams has caused concern among groundwater users, wildlife and Tribal interests, and State and Federal resource managers. To provide information on the potential impacts of increased groundwater development and to aid in the development of a groundwater management strategy, the U.S. Geological Survey, in collaboration with the Oregon Water Resources Department and the Bureau of Reclamation, has developed a groundwater model that can simulate the response of the hydrologic system to these new stresses. The groundwater model was developed using the U.S. Geological Survey MODFLOW finite-difference modeling code and calibrated using inverse methods to transient conditions from 1989 through 2004 with quarterly stress periods. Groundwater recharge and agricultural and municipal pumping are specified for each stress period. All major streams and most major tributaries for which a substantial part of the flow comes from groundwater discharge are included in the model. Groundwater discharge to agricultural drains, evapotranspiration from aquifers in areas of shallow groundwater, and groundwater flow to and from adjacent basins also are simulated in key areas. The model has the capability to calculate the effects of pumping and other external stresses on groundwater levels, discharge to streams, and other boundary fluxes, such as discharge to drains. Historical data indicate that the groundwater system in the upper Klamath Basin fluctuates in response to decadal climate cycles, with groundwater levels and spring flows rising and declining in response to wet and dry periods. Data also show that groundwater levels fluctuate seasonally and interannually in response to groundwater pumping. The most prominent response is to the marked increase in groundwater pumping starting in 2001. The calibrated model is able to simulate observed decadal-scale climate-driven fluctuations in the groundwater system as well as observed shorter-term pumping-related fluctuations. Example model simulations show that the timing and location of the effects of groundwater pumping vary markedly depending on the pumping location. Pumping from wells close (within a few miles) to groundwater discharge features, such as springs, drains, and certain streams, can affect those features within weeks or months of the onset of pumping, and the impacts can be essentially fully manifested in several years. Simulations indicate that seasonal variations in pumping rates are buffered by the groundwater system, and peak impacts are closer to mean annual pumping rates than to instantaneous rates. Thus, pumping effects are, to a large degree, spread out over the entire year. When pumping locations are distant (more than several miles) from discharge features, the effects take many years or decades to fully impact those features, and much of the pumped water comes from groundwater storage over a broad geographic area even after two decades. Moreover, because the effects are spread out over a broad area, the impacts to individual features are much smaller than in the case of nearby pumping. Simulations show that the discharge features most affected by pumping in the area of the Bureau of Reclamation's Klamath Irrigation Project are agricultural drains, and impacts to other surface-water features are small in comparison. A groundwater management model was developed that uses techniques of constrained optimization along with the groundwater flow model to identify the optimal strategy to meet water user needs while not violating defined constraints on impacts to groundwater levels and streamflows. The coupled groundwater simulation-optimization models were formulated to help identify strategies to meet water demand in the upper Klamath Basin. The models maximize groundwater pumping while simultaneously keeping the detrimental impacts of pumping on groundwater levels and groundwater discharge within prescribed limits. Total groundwater withdrawals were calculated under alternative constraints for drawdown, reductions in groundwater discharge to surface water, and water demand to understand the potential benefits and limitations for groundwater development in the upper Klamath Basin. The simulation-optimization model for the upper Klamath Basin provides an improved understanding of how the groundwater and surface-water system responds to sustained groundwater pumping within the Bureau of Reclamation's Klamath Project. Optimization model results demonstrate that a certain amount of supplemental groundwater pumping can occur without exceeding defined limits on drawdown and stream capture. The results of the different applications of the model demonstrate the importance of identifying constraint limits in order to better define the amount and distribution of groundwater withdrawal that is sustainable.

Download or read book Modeling Steady State Groundwater and Surface Water Interactions written by Sherry Mitchell-Bruker and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling Groundwater river Interactions for Assessing Water Allocation Options written by Karen M. Ivkovic and published by . This book was released on 2006 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The interconnections between groundwater and river systems remain poorly understood in many catchments throughout the world, and yet they are fundamental to effectively managing water resources. Groundwater extraction from aquifers that are connected to river systems will reduce river flows, and this has implications for riverine ecosystem health, water security, aesthetic and cultural values, as well as water allocation and water management policies more generally. The decline in river flows as a consequence of groundwater extractions has the potential to threaten river basin industries and communities reliant on water resources. In this thesis the connectivity between groundwater and river systems and the impact that groundwater extractions have on river flows were studied in one of Australia’s most developed irrigation areas, the Namoi River catchment in New South Wales.

Download or read book Estimation of the Effects of Land Use and Groundwater Withdrawals on Streamflow for the Pomperaug River Connecticut written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-07-23 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: A precipitation runoff model for the Pomperaug River watershed, Connecticut was developed to address issues of concern including the effect of development on streamflow and groundwater recharge, and the implications of water withdrawals on streamflow. The model was parameterized using a strategy that requires a minimum of calibration and optimization by establishing basic relations between the parameter value and physical characteristics of individual hydrologic response units (HRUs) that comprise the model. The strategy was devised so that the information needed can be obtained from Geographic Information System and other general databases for Connecticut. Simulation of groundwater recharge enabled evaluation of the temporal and spatial mapping of recharge variation across the watershed and the spatial effects of changes in land cover on base flow and surface runoff.

Download or read book A Coupled Surface water and Ground water Flow Model for Simulation of Stream aquifer Interaction written by Eric D. Swain and published by . This book was released on 1993 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation of the Regional Ground Water Flow System and Ground Water Surface Water Interaction in the Rock River Basin Wisconsin written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-04 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A regional, two-dimensional, areal ground-water-flow model was developed to simulate the ground-water-flow system and ground-water/surface-water interaction in the Rock River Basin. The model was developed by the U.S. Geological Survey (USGS), in cooperation with the Rock River Coalition. The objectives of the regional model were to improve understanding of the ground-water-flow system and to develop a tool suitable for evaluating the effects of potential regional water-management programs. The computer code GFLOW was used because of the ease with which the model can simulate ground-water/surface-water interactions, provide a framework for simulating regional ground-water-flow systems, and be refined in a stepwise fashion to incorporate new data and simulate ground-water-flow patterns at multiple scales.

Download or read book Integrated Assessment of Interactions Between Surface Water and Groundwater Under Climate Variability and Change in the White Volta Basin Ghana written by Felix Mensah Oteng and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation of groundwater conditions and streamflow depletion to evaluate water availability in a Freeport Maine watershed written by Martha G. Nielsen and published by . This book was released on 2012 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Rapid Method for Measuring Local Groundwater surface Water Interactions and Identifying Potential Non point Source Pollution Inputs to Rivers written by and published by . This book was released on 2008 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture in the Central Valley of California is a potential contributor of non-point source pollution to surface waters via the groundwater pathway. This work presents a relatively simple method and inexpensive apparatus for quantifying local groundwater discharge into rivers using heat as a tracer. Two transects along a known gaining reach of the Lower Merced River were used to evaluate the effectiveness of the groundwater discharge monitoring instruments, known as Temperature Javelins, over three months. In terms of fulfilling deployment objectives, Temperature Javelins proved to be low cost, easy to install, and yielded easily interpretable data related to groundwater-surface water discharges. Groundwater discharge velocities were found to vary over time seasonally and spatially (on a scale of meters). Discharges ranged from 0.1 to 6.8 cm/day with higher discharge velocities found on the northern side of the river. These values are consistent with previous values obtained at the same site using other methods. Corresponding hyporheic water samples were collected to investigate solute transport (specifically nitrate) by the discharging water. Nitrate concentrations ranged from nondetectable to 50 ppm in these samples, where elevated values appear to be associated with groundwater entering on the north side of the river. Elevated nitrate flow lines in the hyporheic zone correspond with high discharge areas and alternate with ammonium enriched columns and low groundwater discharge. It is hypothesized that nitrification cells are induced by groundwater-surface water interactions. Testing of this hypothesis is proposed as a subject of further research.

Download or read book Modeling Surface Water and Groundwater Interactions in Agricultural Areas written by Gengxin Ou and published by . This book was released on 2015 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation research, three modeling tools have been developed to help quantify the complex processes of integrated surface- and ground-water systems in an area under significant agricultural development of Nebraska. To evaluate irrigation effect on stream depletion for the Lower Platte River (LPR) basin, a regional three-dimensional, transient groundwater-flow model is established with MODFLOW. A simplified and more efficient solution has been developed to estimate the stream depletion rate by re-using the flow coefficients of the baseline run. The flow equation is linearized because the head coefficients become constant between solver iterations. The tool has been successfully applied to the LPR model. The results show that the stream depletion analysis tool can reduce the numerical errors produced in the conventional method and improve the computational efficiency. The second modeling tool is a cross-section based streamflow routing (CSR) package for MODFLOW to simulate the streamflow and the interaction between streams and aquifers for the stream with a width larger than the MODFLOW grid size. In the CSR package, streams are divided into stream segments which are formed by two consecutive cross-sections. A rapid algorithm is used to compute the submerged area of the MODFLOW grid. Stream-aquifer seepage is treated as lateral flow in the streamflow routing computation with the Muskingum-Cunge method or mass conservation method. A hypothetical problem was established to test the capabilities of the CSR package with steady- and transient-state models. The third part of this dissertation aims to quantify the impacts of natural processes and human activities on ground-water dynamics in highly agricultural areas by developing an integrated surface-ground water model (ISGWM). In ISGWM, SWAT and MODFLOW are linked by a soil water module (SWM), which is developed based on a non-iterative solution of the 1D Richards equation. SWM explicitly represents infiltration, soil evaporation, unsaturated water flow, root water update, and lateral drainage. Taking advantage of the simulation capacities of these SWAT, MODFLOW and SWM, ISGWM can simulate the physical hydrologic processes in three domains and their interactions. The model has been successfully applied to the Johnson Creek watershed, which is located within the Lower Platte Basin.

Download or read book Evaluation of Capture Analysis Bias Associated with Use of Nonlinear Groundwater Flow Models written by Cara Nadler and published by . This book was released on 2016 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water law in the western U.S. typically recognizes surface and groundwater as different sources of water. Because these two systems are often truly connected, groundwater pumping can deplete surface water and is contributing to more frequent litigation by surface water right holders. Surface and groundwater interactions can be quantified through capture analysis, which assesses the decrease in surface water flow rates caused by groundwater pumping. Capture can be described in volumetric terms, or it can be expressed as a fraction of the change in surface water flow rate to the pumping causing the change in flow rate and is often determined through use of groundwater flow models. Capture fractions are a useful means for characterizing the impact of groundwater pumping on streamflow depletion when models behave linearly. However, nonlinear models are often needed to adequately simulate flow processes such as groundwater evapotranspiration and unconfined aquifers. This study quantifies and analyzes the capture bias associated with use of nonlinear groundwater flow models. Generally, bias associated with nonlinear groundwater flow models simulating a connected stream is not affected by selection between the MODFLOW Time-Variant Specified-Head (CHD) and Streamflow-Routing (SFR2) Packages, nor is it significantly affected by variations of streambed hydraulic conductivity of up to two orders of magnitude. Capture fraction bias is significantly altered by disconnected streams, variations in pumping rates, well proximity to capture sources of interest, and by altering the depth at which a well is screened. Understanding the behavior and magnitude of capture fraction bias associated with nonlinear groundwater flow models can help with water management of surface and groundwater interactions.

Download or read book Using Groundwater Modeling to Assess Groundwater and Stream Connectivity in a River Restoration Application written by John Joseph Lunzer and published by . This book was released on 2019 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historic placer mining operations along the Middle Fork John Day River (MFJD) north of Galena, Oregon have left the MFJD channel straightened, incised and lacking in riverbed structure. This lack of riverbed structure makes this stretch of the MFJD poor habitat for trout and migrating salmon. In order to restore this stretch of the MFJD to better serve aquatic species, Inter-Fluve Inc. (IF), United States Forest Service (USFS) and The Freshwater Trust (TFT) will be performing restoration to both the MFJD channel as well as Bear Creek, a tributary of the MFJD. The proposed restoration work will consist of re-routing of the MFJD and Bear Creek, re-meandering of the MFJD and construction of riverbed structure throughout the MFJD.In preparation for this proposed restoration, the connectivity of groundwater and surface water throughout the reach must be assessed. The main focus of this groundwater and surface water connectivity assessment will be to characterize how wetlands located along the reach interact with surface water features via groundwater. Characterizing the connection between groundwater and surface water will aid in determining the potential risk of proposed restoration having negative impacts on wetlands located along the reach. In order to fully characterize the groundwater and surface water connectivity at the site, a monitoring plan focused on geologic, hydrogeologic and hydrologic characteristics was implemented. Data obtained from site monitoring was used to support a groundwater model for the site. This groundwater model was used to make predictions of how proposed restoration would impact the site wetlands.Steady state and transient groundwater models of observed conditions calibrated relatively well producing low error values. Groundwater models revealed that initial restoration performed on Bear Creek has had a negative impact on the site wetlands. When all proposed restoration work is modeled, an overall increase in wetland water elevations is predicted throughout most the wetland area. Water elevations near the abandoned Bear Creek channel however, show a decrease in water elevation when all restoration work is implemented. This decrease in water elevation only occurs between May and July; modeling of July through October in this area show an increase in water elevation levels. Overall when all proposed restoration is completed, the site wetlands and entire site in general will benefit in terms of higher water elevations, especially during base flow conditions.