Download or read book Simulation of Groundwater Flow at Beach Point Cape Cod Massachusetts written by Larry Martin and published by CreateSpace. This book was released on 2013-07-31 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer modeling of the groundwater flow system underlying the Beach Point barrier beach was conducted to evaluate the potential for groundwater to flow toward, and discharge to, the East Harbor Lagoon under both existing conditions and with increased tidal flow to the lagoon. The elevation of the water table in the barrier beach fluctuates in response to tides in Cape Cod Bay. At high tide, water from the bay infiltrates into the barrier beach, causing the water table to rise. At low tide, groundwater drains from the barrier beach to the bay, lowering the water table. The amplitude of tidal fluctuation of the water table decreases with increasing distance from the bay.
Download or read book Evaluation of Data Availability and Examples of Modeling for Ground water Management on Cape Cod Massachusetts written by Alan W. Burns and published by . This book was released on 1974 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Advective Flow Under Steady state and Transient Recharge Conditions Camp Edwards Massachusetts Military Reservation Cape Cod Massachusetts written by Donald A. Walter and published by . This book was released on 2003 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: ... 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 ...
Download or read book Effects of Simulated Ground water Pumping and Recharge on Ground water Flow in Cape Cod Martha s Vineyard and Nantucket Island Basins Massachusetts written by John P. Masterson and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Flow to a Shallow Coastal Embayment written by Newton P. Millham and published by . This book was released on 1993 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Simulated Ground water Pumping and Recharge on Ground water Flow in Cape Cod Martha s Vineyard and Nantucket Island Basins Massachusetts written by John P. Masterson and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Ground water Flow and Evaluation of Water management Alternatives in the Assabet River Basin Eastern Massachusetts written by Leslie A. Desimone and published by . This book was released on 2004 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Data Availability and Examples of Modeling for Ground water Management on Cape Cod Massachusetts written by Alan W. Burns and published by . This book was released on 1975 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Simulated Effects of Wastewater management Actions on the Hydrologic System and Nitrogen loading Rates to Wells and Ecological Receptors Popponesset Bay Watershed Cape Cod Massachusetts written by Donald A. Walter and published by CreateSpace. This book was released on 2013 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discharge of excess nitrogen into Popponesset Bay, an estuarine system on western Cape Cod, has resulted in eutrophication and the loss of eel grass habitat within the estuaries. Septic-system return flow in residential areas within the watershed is the primary source of nitrogen. Total Maximum Daily Loads (TMDLs) for nitrogen have been assigned to the six estuaries that compose the system, and local communities are in the process of implementing the TMDLs by the partial sewering, treatment, and disposal of treated wastewater at wastewater-treatment facilities (WTFs). Loads of waste-derived nitrogen from both current (1997–2001) and future sources can be estimated implicitly from parcel-scale water-use data and recharge areas delineated by a groundwater-flow model. These loads are referred to as “instantaneous” loads because it is assumed that the nitrogen from surface sources is delivered to receptors instantaneously and that there is no traveltime through the aquifer. The use of a solute-transport model to explicitly simulate the transport of mass through the aquifer from sources to receptors can improve implementation of TMDLs by (1) accounting for traveltime through the aquifer, (2) avoiding limitations associated with the estimation of loads from static recharge areas, (3) accounting more accurately for the effect of surface waters on nitrogen loads, and (4) determining the response of waste-derived nitrogen loads to potential wastewater-management actions. The load of nitrogen to Popponesset Bay on western Cape Cod, which was estimated by using current sources as input to a solute-transport model based on a steady-state flow model, is about 50 percent of the instantaneous load after about 7 years of transport (loads to estuary are equal to loads discharged from sources); this estimate is consistent with simulated advective traveltimes in the aquifer, which have a median of 5 years. Model-calculated loads originating from recharge areas reach 80 percent of the instantaneous load within 30 years; this result indicates that loads estimated from recharge areas likely are reasonable for estimating current instantaneous loads. However, recharge areas are assumed to remain static as stresses and hydrologic conditions change in response to wastewater-management actions.
Download or read book Use of Particle Tracking to Improve Numerical Model Calibration and to Analyze Ground water Flow and Contaminant Migration Massachusetts Military Reservation Western Cape Cod Massachusetts written by John P. Masterson and published by . This book was released on 1997 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: ... Examines ground-water flow model used to simulate hydrogeologic conditions affecting ground-water flow and contaminant migration in the Cape Cod acquifer beneath the Massachusetts Military Reservation ...
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1988 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effective Groundwater Model Calibration written by Mary C. Hill and published by John Wiley & Sons. This book was released on 2006-08-25 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods and guidelines for developing and using mathematical models Turn to Effective Groundwater Model Calibration for a set of methods and guidelines that can help produce more accurate and transparent mathematical models. The models can represent groundwater flow and transport and other natural and engineered systems. Use this book and its extensive exercises to learn methods to fully exploit the data on hand, maximize the model's potential, and troubleshoot any problems that arise. Use the methods to perform: Sensitivity analysis to evaluate the information content of data Data assessment to identify (a) existing measurements that dominate model development and predictions and (b) potential measurements likely to improve the reliability of predictions Calibration to develop models that are consistent with the data in an optimal manner Uncertainty evaluation to quantify and communicate errors in simulated results that are often used to make important societal decisions Most of the methods are based on linear and nonlinear regression theory. Fourteen guidelines show the reader how to use the methods advantageously in practical situations. Exercises focus on a groundwater flow system and management problem, enabling readers to apply all the methods presented in the text. The exercises can be completed using the material provided in the book, or as hands-on computer exercises using instructions and files available on the text's accompanying Web site. Throughout the book, the authors stress the need for valid statistical concepts and easily understood presentation methods required to achieve well-tested, transparent models. Most of the examples and all of the exercises focus on simulating groundwater systems; other examples come from surface-water hydrology and geophysics. The methods and guidelines in the text are broadly applicable and can be used by students, researchers, and engineers to simulate many kinds systems.
Download or read book Simulation of Groundwater Flow in the Coastal Plain Aquifer System of Virginia written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-04 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The groundwater model documented in this report simulates the transient evolution of water levels in the aquifers and confining units of the Virginia Coastal Plain and adjacent portions of Maryland and North Carolina since 1890. Groundwater withdrawals have lowered water levels in Virginia Coastal Plain aquifers and have resulted in drawdown in the Potomac aquifer exceeding 200 feet in some areas. The discovery of the Chesapeake Bay impact crater and a revised conceptualization of the Potomac aquifer are two major changes to the hydrogeologic framework that have been incorporated into the groundwater model.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1983 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water in Freshwater saltwater Environments of the Atlantic Coast written by Paul M. Barlow and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Research Catalog written by United States. Office of Water Research and Technology and published by . This book was released on 1976 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with vol. 9, only new and continuing but modified projects are listed. Vols. 8- should be kept as a record of continuing but unchanged projects.
Download or read book Civil Engineering Hydraulics Abstracts written by and published by . This book was released on 1983 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
