Download or read book Hydrogeology and Simulation of Groundwater Flow and Land surface Subsidence in the Northern Part of the Gulf Coast Aquifer System Texas 1891 2009 written by Mark C. Kasmarek and published by . This book was released on 2012 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogeology and Simulation of Groundwater Flow and Land Surface Subsidence in the Northern Part of the Gulf Coast Aquifer System Texas 1891 2009 written by U.S. Department of the Interior and published by Createspace Independent Pub. This book was released on 2014-10-09 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: In cooperation with the Harris–Galveston Subsidence District, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District, the U.S. Geological Survey developed and calibrated the Houston Area Groundwater Model (HAGM), which simulates groundwater flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system in Texas from predevelopment (before 1891) through 2009. Withdrawal of groundwater since development of the aquifer system has resulted in potentiometric surface (hydraulic head, or head) declines in the Gulf Coast aquifer system and land-surface subsidence (primarily in the Houston area) from depressurization and compaction of clay layers interbedded in the aquifer sediments.

Download or read book Hydrogeology and Simulation of Ground water Flow and Land surface Subsidence in the Northern Part of the Gulf Coast Aquifer System Texas written by Mark C. Kasmarek and published by . This book was released on 2004 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Texas Landscape Project written by David A. Todd and published by Texas A&M University Press. This book was released on 2016-06-05 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Texas Landscape Project explores conservation and ecology in Texas by presenting a highly visual and deeply researched view of the widespread changes that have affected the state as its population and economy have boomed and as Texans have worked ever harder to safeguard its bountiful but limited natural resources. Covering the entire state, from Pineywoods bottomlands and Panhandle playas to Hill Country springs and Big Bend canyons, the project examines a host of familiar and not so familiar environmental issues. A companion volume to The Texas Legacy Project, this book tracks specific environmental changes that have occurred in Texas using more than 300 color maps, expertly crafted by cartographer Jonathan Ogren, and over 100 photographs that coalesce to fashion a broad portrait of the modern Texas landscape. The rich data, compiled by author David Todd, are presented in clearly written yet marvelously detailed text that gives historical context and contemporary statistics for environmental trends connected to the land, water, air, energy, and built world of the second-largest and second-most populated state in the nation. An engaging read for any environmentalist or conscientious citizen, The Texas Landscape Project provides a true sense of the grand scope of the Lone Star State and the high stakes of protecting it. To learn more about The Meadows Center for Water and the Environment, sponsors of this book's series, please click here.

Download or read book Understanding the Long Term Evolution of the Coupled Natural Human Coastal System written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-11-17 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Gulf Coast provides a valuable setting to study deeply connected natural and human interactions and feedbacks that have led to a complex, interconnected coastal system. The physical landscape in the region has changed significantly due to broad-scale, long-term processes such as coastal subsidence and river sediment deposition as well as short-term episodic events such as hurricanes. Modifications from human activities, including building levees and canals and constructing buildings and roads, have left their own imprint on the natural landscape. This coupled natural-human coastal system and the individual aspects within it (physical, ecological, and human) are under increased pressure from accelerating environmental stressors such as sea level rise, intensifying hurricanes, and continued population increase with its accompanying coastal development. Promoting the resilience and maintaining the habitability of the Gulf Coast into the future will need improved understanding of the coupled natural-human coastal system, as well as effective sharing of this understanding in support of decision-making and policies. Understanding the Long-term Evolution of the Coupled Natural-Human Coastal System presents a research agenda meant to enable a better understanding of the multiple and interconnected factors that influence long-term processes along the Gulf Coast. This report identifies scientific and technical gaps in understanding the interactions and feedbacks between human and natural processes, defines essential components of a research and development program in response to the identified gaps, and develops priorities for critical areas of research.

Download or read book Energy Production in the Mississippi River Delta written by J. W. Day and published by Springer Nature. This book was released on 2022-04-12 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: For nearly a century, the energy industry had a profound impact on the Mississippi Delta, including both the natural and socio-economic systems. The purpose of this book is to describe the delta, how oil and gas (O&G) activities have impacted both natural and socio-economic systems and how much of the degradation could have been avoided. The Mississippi Delta formed over the past six thousand years but, in less than a century, lost 25 percent of coastal wetlands. O&G activities contributed significantly to this loss. O&G production began in the early 20th century and over 600 conventional fields were developed. Production ramped up rapidly, peaking around 1970, then declined. As O&G production declines, produced water dominates fluid production, and this high salinity brine is laced with a variety of toxins. Often, O&G was produced rapidly and much was left in the ground and is now technically and economically unavailable. With careful planning, this situation could have been avoided. The industry also affected the regulatory framework by weakening regulations, enforcement and impacts were not adequately addressed, and more profits flowed out of state. Thus, the state was economically and environmentally worse off. The industry should be compelled to contribute expertise and financial resources to restoration of the delta.

Download or read book Secret Houston A Guide to the Weird Wonderful and Obscure written by William Dylan Powell and published by Reedy Press LLC. This book was released on 2019-10-15 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: What's the best place in Houston to watch ostrich racing? Is there really buried treasure in Hermann Park? Do you know where to catch live jazz on the site of the original Republic of Texas capitol, or enjoy world class Cajun food in a church cloister from the 1800s? You'll find the answers to these questions and more in Secret Houston, your guide to H-Town's offbeat, overlooked and unknown. This book will take native Houstonians and fresh-off-the-freeway Newstonians alike on a behind-the-scenes look at the funkiest bits of the nation's fourth-largest city. Did you know Memorial Park was once a World War I training camp? Or the original use of the Last Concert Café and why its front door was always kept locked? And what's up with that old, mysterious crypt built into the bank of the bayou or that weird golden dome out on the west side? Local writer and longtime Houstonian William Dylan Powell helps you unlock Bayou City's most intriguing, entertaining and arcane secrets in this guidebook to the obscure. Some of these secrets you can enjoy today, while others are merely ghosts, legends or shadows of our city's past. But they're all waiting for you to explore right now in Secret Houston.

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 630 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 Groundwater Depletion in the United States 1900 2008 written by Leonard F Konikow and published by CreateSpace. This book was released on 2014-08-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A natural consequence of groundwater withdrawals is the removal of water from subsurface storage, but the overall rates and magnitude of groundwater depletion in the United States are not well characterized. This study evaluates long- term cumulative depletion volumes in 40 separate aquifers or areas and one land use category in the United States, bringing together information from the literature and from new analy- ses. Depletion is directly calculated using calibrated ground- water models, analytical approaches, or volumetric budget analyses for multiple aquifer systems. Estimated groundwater depletion in the United States during 1900-2008 totals approx- imately 1,000 cubic kilometers (km3). Furthermore, the rate of groundwater depletion has increased markedly since about 1950, with maximum rates occurring during the most recent period (2000-2008) when the depletion rate averaged almost 25 km3 per year (compared to 9.2 km3 per year averaged over the 1900-2008 timeframe).

Download or read book System and Boundary Conceptualization in Ground water Flow Simulation written by Thomas E. Reilly and published by . This book was released on 2001 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Simulation of Ground water Flow and Land Subsidence at Edwards Air Force Base Antelope Valley California written by Tracy Nishikawa and published by . This book was released on 2001 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogeologic Evaluation and Numerical Simulation of the Death Valley Regional Ground water Flow System Nevada and California written by and published by . This book was released on 1997 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogeology and Simulation of Ground water Flow in the Sandston Aquifer Northeastern Wisconsin written by Terrence D. Conlon and published by . This book was released on 1998 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MODFLOW Ground water Model written by S. A. Leake and published by . This book was released on 2007 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new computer program was developed to simulate vertical compaction in models of regional ground-water flow. The program simulates ground-water storage changes and compaction in discontinuous interbeds or in extensive confining units, accounting for stress-dependent changes in storage properties. The new program is a package for MODFLOW, the U.S. Geological Survey modular finite-difference ground-water flow model. Several features of the program make it useful for application in shallow, unconfined flow systems. Geostatic stress can be treated as a function of water-table elevation, and compaction is a function of computed changes in effective stress at the bottom of a model layer. Thickness of compressible sediments in an unconfined model layer can vary in proportion to saturated thickness.

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 Results of Simulations by a Preliminary Numerical Model of Land Subsidence in the El Paso Texas Area written by John Michael Kernodle and published by . This book was released on 1992 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulated Water Sources and Effects of Pumping on Surface and Ground Water Sagamore and Monomoy Flow Lenses Cape Cod Massachusetts written by Donald A. Walter and published by . This book was released on 2005 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: