Download or read book Approaches to Identify Groundwater Discharge Towards and Within Lowland Surface Water Bodies on Different Scales written by Franziska Pöschke and published by . This book was released on 2016* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of Methods for Catchment scale Identification of Groundwater surface Water Interactions in Lowland Permeable Catchments written by Sean A. Arnott and published by . This book was released on 2008 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Field Techniques for Estimating Water Fluxes Between Surface Water and Ground Water written by Donald O. Rosenberry and published by CreateSpace. This book was released on 2014-06-16 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in the use and development of our Nation's surface - and ground-water resources has increased significantly during the past 50 years. This work discusses field techniques for estimating water fluxes.
Download or read book GIS and Geostatistical Techniques for Groundwater Science written by Senapathi Venkatramanan and published by Elsevier. This book was released on 2019-05-28 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: GIS and Geostatistical Techniques for Groundwater Science provides a detailed synthesis of the application of GIS and geostatistics in groundwater studies. As the book illustrates, GIS can be a powerful tool for developing solutions for water resource problems, assessing water quality, and managing water resources. Beginning with an introduction to the history of GIS and geostatistical techniques in groundwater studies, the book then describes various spatial techniques, including case studies for various applications, from quality assessment, to resource management. This book assembles the most up-to-date techniques in GIS and geostatistics as they relate to groundwater, one of our most important natural resources. - Provides details on the application of GIS and statistics in groundwater studies - Includes practical coverage of the use of spatial analysis techniques in groundwater science - Bridges the gap between geostatistics and GIS as it relates to groundwater science and management - Offers worldwide case studies to illustrate various techniques and applications in addressing groundwater issues
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 Intermittent Rivers and Ephemeral Streams written by Thibault Datry and published by Academic Press. This book was released on 2017-07-11 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. - Provides up-to-date reviews of research findings and management strategies using international examples - Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach - Reveals the relevance of this scientific understanding to managers and policymakers
Download or read book Determining the Spatial Distribution of Groundwater and Surface Water Exchange Using Heat as a Tracer written by Jeremy Crowley and published by . This book was released on 2012 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The magnitude, location, and timing of groundwater and surface water (GWSW) interaction (both as groundwater discharge and hyporheic cycling) in streams have implications stream ecosystems, nutrient and contaminant reactions, and stream restoration work. In many areas of the world, high phosphorus and nitrate agricultural runoff is a large threat to water quality. The study location, Elton Creek in Cattaraugus County, NY, is located in glacial outwash sediments and is typical of streams in the Great Lakes watershed. We evaluate four general controls of the indicators (stream morphology, stream gradient, bank slope, and in-stream features) of groundwater/surface water (GWSW) interaction using an analytical GIS model of groundwater discharge.^In order to identify locations of GWSW interaction along a 500 m stream reach, a variety of methods were used (including differential streamflow gaging, solute tracers (or channel water balance), and distributed temperature sensor (DTS) monitoring. . A GIS analytical model based on the superimposed indicators was compared to the DTS standard deviation in stream temperature derived gaining and losing portions of the stream. The relative correlation of the individual indicators with groundwater discharge areas was identified for the studied section. It was found that the superposition of indicators was able to delineate areas of groundwater discharge with increasing accuracy. The GIS model of the mapped locations of superimposed indicators is expected to be applicable in a wide range of stream systems to locate areas of potential groundwater discharge, groundwater contaminant discharge, and biogeochemical hotspots.^In addition to identifying the spatial location of groundwater discharge we applied a coupled heat/mass balance model to DTS stream temperature to determine the location and magnitude of groundwater discharge at high spatial resolution. Previous studies using heat/mass balance modeling of GWSW interaction have either averaged temperature over time and distance, or used multiple parameters which are difficult to quantify. We used a simple heat/mass balance model to determine high spatiotemporal resolution groundwater discharge from DTS stream temperature. A rating curve was developed establishing the relationship between head and stream discharge at cross sections using stilling wells with pressure transducers. The upstream discharge was used as the initial condition (for each time step) to model the groundwater discharge at the study location. Additional downstream discharges were used to determine the effectiveness of the model to predict stream discharge.^In this case, it was found that the measurement error in temperature and stream discharge was greater than the variation in predicted downstream streamflow. In addition, the volume of groundwater discharge was not substantial enough to significantly evaluate the model prediction. We suggest that this methodology would be more appropriately applied in shallow streams, with known significant groundwater inputs, and dynamic stream discharge over the studied section.
Download or read book Saline Groundwater Surface Water Interaction in Coastal Lowlands written by J.R. Delsman and published by IOS Press. This book was released on 2015-05-07 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal zones are among the world's most densely populated and economically important areas, but these factors put pressure on the often limited available freshwater resources. Global change will undoubtedly increase this pressure through the combined effects of increased population, economic development, rising sea levels, increased evapotranspiration, over-extraction and the salinization of coastal aquifers, decreasing river discharges, and accelerating land subsidence. Saline groundwater exfiltration is a common problem in the coastal zone of the Netherlands, but the hydrological processes and physiographic factors that affect this are not fully understood. The research presented in this book aims to identify the processes and physiographic factors controlling the spatial variability and temporal dynamics of the exfiltration of saline groundwater to surface water, and hence the contribution of saline groundwater to surface water salinity. Topics covered include a paleo-hydrogeological model simulation of the Holocene evolution of groundwater salinity as a result of paleo-geographic changes; surface water salinity dynamics in a densely-drained lowland catchment; hydrograph separation in an agricultural catchment; observations of heads, flow, solute concentration and temperature to constrain a detailed, variable-density groundwater flow and transport model; and a model to simulate the salinity dynamics of exfiltrating groundwater to support operational water management of freshwater resources in coastal lowlands. The book further outlines the implications of these findings for freshwater management in the Netherlands. The book demonstrates that the salinity of groundwater exfiltrating in polders in the Netherlands, and hence surface water salinity, varies on a wide range of spatial and temporal scales.
Download or read book Hydrogeophysics written by Yorum Rubin and published by Springer Science & Business Media. This book was released on 2006-05-06 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ground-breaking work is the first to cover the fundamentals of hydrogeophysics from both the hydrogeological and geophysical perspectives. Authored by leading experts and expert groups, the book starts out by explaining the fundamentals of hydrological characterization, with focus on hydrological data acquisition and measurement analysis as well as geostatistical approaches. The fundamentals of geophysical characterization are then at length, including the geophysical techniques that are often used for hydrogeological characterization. Unlike other books, the geophysical methods and petrophysical discussions presented here emphasize the theory, assumptions, approaches, and interpretations that are particularly important for hydrogeological applications. A series of hydrogeophysical case studies illustrate hydrogeophysical approaches for mapping hydrological units, estimation of hydrogeological parameters, and monitoring of hydrogeological processes. Finally, the book concludes with hydrogeophysical frontiers, i.e. on emerging technologies and stochastic hydrogeophysical inversion approaches.
Download or read book Identifying and Evaluating Groundwater Discharge Within Surface Water Systems Through Temperature Measurements written by University of Guelph. School of Engineering and published by . This book was released on 2009 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Surface Water Interactions written by Habil. Jörg Lewandowski and published by MDPI. This book was released on 2020-12-10 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen a paradigm shift in our understanding of groundwater–surface water interactions: surface water and aquifers were long considered discrete, separate entities; they are now understood as integral components of a surface–subsurface continuum. This book provides an overview of current research advances and innovative approaches in groundwater–surface water interactions. The 20 research articles and 1 communication cover a wide range of thematic scopes, scales, and experimental and modelling methods across different disciplines (hydrology, aquatic ecology, biogeochemistry, and environmental pollution). The book identifies current knowledge gaps and reveals the challenges in establishing standardized measurement, observation, and assessment approaches. It includes current hot topcis with environmental and societal relevance such as eutrophication, retention of legacy, and emerging pollutants (e.g., pharmaceuticals and microplastics), urban water interfaces, and climate change impacts. The book demonstrates the relevance of processes at groundwater–surface water interfaces for (1) regional water balances and (2) quality and quantity of drinking water resources. As such, this book represents the long-awaited transfer of the above-mentioned paradigm shift in understanding of groundwater–surface water interactions from science to practice.
Download or read book Heat as a Tool for Studying the Movement of Ground Water Near Streams written by David Arthur Stonestrom and published by . This book was released on 2003 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mirror Lake written by Thomas C. Winter and published by Univ of California Press. This book was released on 2009-11-25 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lakes change constantly in response to their surrounding landscape, and their airshed. Mirror Lake, located in the White Mountains of New Hampshire, has been carefully researched since the 1960s. This book, edited by Thomas C. Winter and Gene E. Likens, summarizes and interprets the extensive data collected on this lake and its watershed from 1981 to 2000, a period during which the lake was affected by a variety of climate conditions as well as significant human activity. The findings documented also identify the panoply of chemicals influenced by limnological processes and include percentages of inflow sources, percentages of water loss from seepage, surface outflow, and evaporation, and the effect of water flow on the lake nutrients.
Download or read book Numerical Model Analysis of the Effects of Ground water Withdrawals on Discharge to Streams and Springs in Small Basins Typical of the Puget Sound Lowland Washington written by David S. Morgan and published by Geological Survey (USGS). This book was released on 1999 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater around the World written by Jean Margat and published by CRC Press. This book was released on 2013-03-19 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unique and up-to-date summary of what is known about groundwater on our planet, from a global perspective and in terms of area-specific factual information. Unlike most textbooks on groundwater, it does not deal with theoretical principles, but rather with the overall picture that emerges as a result of countless observations,
Download or read book Lake Stechlin written by S. Jost Casper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt:
