Simulation Of Advective Flow Under Steady State And Transient Recharge Conditions Camp Edwards Massachusetts Military Reservation Cape Cod Massachusetts
Simulation Of Advective Flow Under Steady State And Transient Recharge Conditions Camp Edwards Massachusetts Military Reservation Cape Cod Massachusetts Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Simulation Of Advective Flow Under Steady State And Transient Recharge Conditions Camp Edwards Massachusetts Military Reservation Cape Cod Massachusetts book. This book definitely worth reading, it is an incredibly well-written.
Simulation of Advective Flow Under Steady-state and Transient Recharge Conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts by Donald A. Walter,John P. Masterson Pdf
... Describes and documents USGS groundwater flow modeling activities in support of the US Army National Guard investigations; these models were used to (1) improve understanding of the hydrologic system, (2) simulate advective transport of contaminants, (3) delineate recharge areas to municipal wells, and (4) evaluate how model discretization and time-varying recharge affect simulation results ...
Simulation of Advective Transport under Steady-State and Transient Recharge Conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts by Anonim Pdf
Donald A. Walter,L. K. Tuck,Melanie L. Clark,Stephen L. Harden,Jason M. Fine,John P. Masterson,Merry E. Gamper,T. B. Spruill
Author : Donald A. Walter,L. K. Tuck,Melanie L. Clark,Stephen L. Harden,Jason M. Fine,John P. Masterson,Merry E. Gamper,T. B. Spruill Publisher : Unknown Page : 320 pages File Size : 53,8 Mb Release : 2003 Category : Drinking water ISBN : OSU:32435075538744
Water-resources Investigations Report by Donald A. Walter,L. K. Tuck,Melanie L. Clark,Stephen L. Harden,Jason M. Fine,John P. Masterson,Merry E. Gamper,T. B. Spruill Pdf
Simulated Water Sources and Effects of Pumping on Surface and Ground Water, Sagamore and Monomoy Flow Lenses, Cape Cod, Massachusetts by Donald A. Walter,Ann T. Whealan Pdf
Current Perspectives in Contaminant Hydrology and Water Resources Sustainability by Paul Bradley Pdf
Human society depends on liquid freshwater resources to meet drinking, sanitation and hygiene, agriculture, and industry needs. Improved resource monitoring and better understanding of the anthropogenic threats to freshwater environments are critical to efficient management of freshwater resources and ultimately to the survival and quality of life of the global human population. This book helps address the need for improved freshwater resource monitoring and threat assessment by presenting current reviews and case studies focused on the fate and transport of contaminants in the environment and on the sustainability of groundwater and surface-water resources around the world. It is intended for students and professionals working in hydrology and water resources management.
Ground-water Levels Near the Top of the Water-table Mound, Western Cape Cod, Massachusetts, 2002-04 by Andrew J. Massey,Carl S. Carlson,Denis R. LeBlanc Pdf
Applied Groundwater Modeling by Mary P. Anderson,William W. Woessner,Randall J. Hunt Pdf
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
Describes fluid flow, transport and contamination in rocks and sediments, for graduate students and professionals in hydrology, water resources, geochemistry.
National Academies of Sciences, Engineering, and Medicine,Division on Earth and Life Studies,Board on Earth Sciences and Resources,Committee on Geological and Geotechnical Engineering,Committee on Subsurface Characterization, Modeling, Monitoring, and Remediation of Fractured Rock
Author : National Academies of Sciences, Engineering, and Medicine,Division on Earth and Life Studies,Board on Earth Sciences and Resources,Committee on Geological and Geotechnical Engineering,Committee on Subsurface Characterization, Modeling, Monitoring, and Remediation of Fractured Rock Publisher : National Academies Press Page : 177 pages File Size : 48,5 Mb Release : 2021-01-29 Category : Science ISBN : 9780309373722
Characterization, Modeling, Monitoring, and Remediation of Fractured Rock by National Academies of Sciences, Engineering, and Medicine,Division on Earth and Life Studies,Board on Earth Sciences and Resources,Committee on Geological and Geotechnical Engineering,Committee on Subsurface Characterization, Modeling, Monitoring, and Remediation of Fractured Rock Pdf
Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. Characterization, Modeling, Monitoring, and Remediation of Fractured Rock examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of Characterization, Modeling, Monitoring, and Remediation of Fractured Rock can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools-some only recently developed-can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.
U. S. Department Of The Interior,U. S. Geological Survey
Author : U. S. Department Of The Interior,U. S. Geological Survey Publisher : Unknown Page : 118 pages File Size : 55,5 Mb Release : 2009-12-01 Category : Science ISBN : 1468027131
Hydrogeology and Simulation of Groundwater Flow by U. S. Department Of The Interior,U. S. Geological Survey Pdf
The region of southeastern Massachusetts where the Towns of Plymouth, Carver, Kingston and Duxbury are located is known for its abundant water resources, its cranberry agriculture, and its unique ecosystems. Rapid population growth in this region, however, has resulted in increased competition among agricultural, commercial, ecological, and residential demands for water resources. Continued population growth has created the potential for increased groundwater withdrawals that could deplete streamflow and lower surface-water levels in streams, ponds, and wetlands and increase the loading of nonpoint-source septic contamination. These potential effects may contribute to habitat destruction, degradation of water quality, and loss of wetlands. The unconfined aquifer that underlies this region is composed mostly of glacially deposited sediments ranging in size from clay to boulders and is the second largest aquifer system in Massachusetts (Hansen and Lapham, 1992). It ranges in thickness from less than 20 to more than 200 ft, and contains more than 500 billion gallons of freshwater (Williams and Tasker, 1974). Groundwater discharge from the aquifer supports numerous kettle ponds and coastal streams (fig. 1). The aquifer was designated as a Sole Source Aquifer by the U.S. Environmental Protection Agency, recognizing that groundwater is a vital source of drinking water for many of the communities in the area. The population in this region has nearly tripled in the past 30 years; as a result, nearly 40 percent of agricultural lands in the region have been lost to development (Woods Hole Research Center, 2007). Over the next 20 years, the overall population of southeastern Massachusetts is projected to increase by more than 200,000, making this part of southeastern Massachusetts the fastest growing region in the State (The Nature Conservancy, 2002). Large increases in population and the conversion of open space to residential development creates concerns for potential effects on the quality and quantity of the region's water supply. Historically, the Plymouth-Carver area has been one of the most important centers of cranberry production in the United States. Cranberries produced in this region account for most of the Massachusetts harvests, and in 2001 were about one-third of the Nation's harvest (New England Agricultural Statistics Service, 2002). In recent years, a variety of economic factors, including out-of-state competition and declining cranberry prices, has led some cranberry growers to convert upland portions of their land holdings to residential development (Flint, 2002).The Nature Conservancy has recognized this area as one of the most significant ecosystems in the northeastern United States. The region contains unique ecosystems such as the Plymouth Pinelands, an approximately 30-mi2 area in the northeastern portion of the region, a large state forest (Myles Standish State Forest), and two State-designated Areas of Critical Environmental Concern (Ellisville Harbor and the Herring River Watershed) (fig. 1). Current and predicted growth in population and residential development and the reliance in this area on groundwater for water supply created the need for a reexamination of the water resources of the Plymouth-Carver-Kingston-Duxbury (PCKD) aquifer system. The U.S. Geological Survey (USGS), in cooperation with the Massachusetts Department of Environmental Protection, has conducted previous hydrologic studies of the aquifer system, including hydrologic assessments of aquifer yield and water quality (Williams and Tasker, 1974; Persky, 1993) and a regional modeling study (Hansen and Lapham, 1992). Advances in computing capabilities, numerical groundwater-flow models, and geographic information system (GIS) tools developed since the previous studies were conducted have allowed for the development of a more sophisticated groundwater-flow model that builds upon those earlier efforts.
National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Future Options for Management in the Nation's Subsurface Remediation Effort
Author : National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Future Options for Management in the Nation's Subsurface Remediation Effort Publisher : National Academies Press Page : 423 pages File Size : 45,5 Mb Release : 2013-02-27 Category : Nature ISBN : 9780309278133
Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites by National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Future Options for Management in the Nation's Subsurface Remediation Effort Pdf
Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.
Groundwater Science, 2E, covers groundwater's role in the hydrologic cycle and in water supply, contamination, and construction issues. It is a valuable resource for students and instructors in the geosciences (with focuses in hydrology, hydrogeology, and environmental science), and as a reference work for professional researchers. This interdisciplinary text weaves important methods and applications from the disciplines of physics, chemistry, mathematics, geology, biology, and environmental science, introducing you to the mathematical modeling and contaminant flow of groundwater. New to the Second Edition:. New chapter on subsurface heat flow and geothermal systems. Expanded content on well construction and design, surface water hydrology, groundwater/ surface water interaction, slug tests, pumping tests, and mounding analysis.. Updated discussions of groundwater modeling, calibration, parameter estimation, and uncertainty. Free software tools for slug test analysis, pumping test analysis, and aquifer modeling. Lists of key terms and chapter contents at the start of each chapter. Expanded end-of-chapter problems, including more conceptual questions. Two-color figures. Homework problems at the end of each chapter and worked examples throughout. Companion website with videos of field exploration and contaminant migration experiments, PDF files of USGS reports, and data files for homework problems. PowerPoint slides and solution manual for adopting faculty.
National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee on Emerging Research Questions in the Arctic
Author : National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee on Emerging Research Questions in the Arctic Publisher : National Academies Press Page : 240 pages File Size : 52,5 Mb Release : 2014-07-31 Category : Science ISBN : 9780309301862
The Arctic in the Anthropocene by National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee on Emerging Research Questions in the Arctic Pdf
Once ice-bound, difficult to access, and largely ignored by the rest of the world, the Arctic is now front and center in the midst of many important questions facing the world today. Our daily weather, what we eat, and coastal flooding are all interconnected with the future of the Arctic. The year 2012 was an astounding year for Arctic change. The summer sea ice volume smashed previous records, losing approximately 75 percent of its value since 1980 and half of its areal coverage. Multiple records were also broken when 97 percent of Greenland's surface experienced melt conditions in 2012, the largest melt extent in the satellite era. Receding ice caps in Arctic Canada are now exposing land surfaces that have been continuously ice covered for more than 40,000 years. What happens in the Arctic has far-reaching implications around the world. Loss of snow and ice exacerbates climate change and is the largest contributor to expected global sea level rise during the next century. Ten percent of the world's fish catches comes from Arctic and sub-Arctic waters. The U.S. Geological Survey estimated that up to 13 percent of the world's remaining oil reserves are in the Arctic. The geologic history of the Arctic may hold vital clues about massive volcanic eruptions and the consequent release of massive amount of coal fly ash that is thought to have caused mass extinctions in the distant past. How will these changes affect the rest of Earth? What research should we invest in to best understand this previously hidden land, manage impacts of change on Arctic communities, and cooperate with researchers from other nations? The Arctic in the Anthropocene reviews research questions previously identified by Arctic researchers, and then highlights the new questions that have emerged in the wake of and expectation of further rapid Arctic change, as well as new capabilities to address them. This report is meant to guide future directions in U.S. Arctic research so that research is targeted on critical scientific and societal questions and conducted as effectively as possible. The Arctic in the Anthropocene identifies both a disciplinary and a cross-cutting research strategy for the next 10 to 20 years, and evaluates infrastructure needs and collaboration opportunities. The climate, biology, and society in the Arctic are changing in rapid, complex, and interactive ways. Understanding the Arctic system has never been more critical; thus, Arctic research has never been more important. This report will be a resource for institutions, funders, policy makers, and students. Written in an engaging style, The Arctic in the Anthropocene paints a picture of one of the last unknown places on this planet, and communicates the excitement and importance of the discoveries and challenges that lie ahead.
