An Investigation of the Geomorphology and Flooding Characteristics of a Small Stream in the Upper Big Walnut Creek Watershed, Ohio PDF Download
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Author: Beth Ellen Fry Publisher: ISBN: Category : Floods Languages : en Pages : 268
Book Description
Abstract: The objectives pertaining of this study were to 1) characterize the geomorphology of the headwaters of Sugar Creek (a tributary of the Upper Big Walnut Creek), 2) evaluate methods for relating recurrence intervals to discharge on the ungaged stream, and 3) to determine the frequency and magnitude of annual out of bank discharge at various locations along the stream. The bankfull discharge characteristics of Sugar Creek were analyzed with a regional curve analysis; the Rosgen Classification System, and an analysis of the threshold particle size. The three methods for estimating recurrence interval discharges of ungaged streams included two uncalibrated landscape models and estimates calibrated with USGS data from a downstream gage. HEC-HMS and HECRAS modeling programs were used to develop discharge recurrence interval relationships for selected locations along Sugar Creek. The frequencies associated with recurrence interval discharges, in times per year, were estimated with a time duration analysis and the average annual volume of overbank flows, as a percent of the total flow, utilized a combination of the generated flow hydrographs and the frequencies associated with recurrence interval discharges. Sugar Creek was a stable system, or in dynamic equilibrium, and had an extensive floodplain with entrenchment ratios ranging from 2 to 18. A calibrated method for estimating recurrence interval discharges was selected and used to estimate the average annual frequency and volume of overbank flows. Among eight locations focused on in the study, 38% experienced bankfull or larger discharges an average of 12 times per year, with about a 0.2-year recurrence interval for the bankfiill discharge. Seventy-five percent of the locations experienced bankfull or larger discharges an average of at least 3 times per year, with about a 0.8-year recurrence interval. Eighty-eight percent the locations, experienced out of bank flows at least 1 time per year, with about a 1.6-year recurrence interval. All of the locations experienced out of bank flows an average of at least 1 time per year, with the 2-year recurrence interval discharge. Out of bank flows ranged from 0.4% to 13% of the average annual flow volume. Based on the results of this study, it was recommended that further research be conducted in the Sugar Creek watershed to quantify the water quality benefits within the floodplain, as well as the benefits of a stable stream.
Author: Beth Ellen Fry Publisher: ISBN: Category : Floods Languages : en Pages : 268
Book Description
Abstract: The objectives pertaining of this study were to 1) characterize the geomorphology of the headwaters of Sugar Creek (a tributary of the Upper Big Walnut Creek), 2) evaluate methods for relating recurrence intervals to discharge on the ungaged stream, and 3) to determine the frequency and magnitude of annual out of bank discharge at various locations along the stream. The bankfull discharge characteristics of Sugar Creek were analyzed with a regional curve analysis; the Rosgen Classification System, and an analysis of the threshold particle size. The three methods for estimating recurrence interval discharges of ungaged streams included two uncalibrated landscape models and estimates calibrated with USGS data from a downstream gage. HEC-HMS and HECRAS modeling programs were used to develop discharge recurrence interval relationships for selected locations along Sugar Creek. The frequencies associated with recurrence interval discharges, in times per year, were estimated with a time duration analysis and the average annual volume of overbank flows, as a percent of the total flow, utilized a combination of the generated flow hydrographs and the frequencies associated with recurrence interval discharges. Sugar Creek was a stable system, or in dynamic equilibrium, and had an extensive floodplain with entrenchment ratios ranging from 2 to 18. A calibrated method for estimating recurrence interval discharges was selected and used to estimate the average annual frequency and volume of overbank flows. Among eight locations focused on in the study, 38% experienced bankfull or larger discharges an average of 12 times per year, with about a 0.2-year recurrence interval for the bankfiill discharge. Seventy-five percent of the locations experienced bankfull or larger discharges an average of at least 3 times per year, with about a 0.8-year recurrence interval. Eighty-eight percent the locations, experienced out of bank flows at least 1 time per year, with about a 1.6-year recurrence interval. All of the locations experienced out of bank flows an average of at least 1 time per year, with the 2-year recurrence interval discharge. Out of bank flows ranged from 0.4% to 13% of the average annual flow volume. Based on the results of this study, it was recommended that further research be conducted in the Sugar Creek watershed to quantify the water quality benefits within the floodplain, as well as the benefits of a stable stream.
Author: Avril L. de la Cretaz Publisher: CRC Press ISBN: 1420008722 Category : Science Languages : en Pages : 342
Book Description
Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed
Author: Wayne S. Davis Publisher: CRC Press ISBN: 9780873718943 Category : Technology & Engineering Languages : en Pages : 434
Book Description
Biological Assessment and Criteria presents a state-of-the-art overview of the applications of biological assessments and biocriteria for water quality management in fresh waters. The book presents case studies which illustrate how bioassessment has been used to identify and diagnose water quality problems. It also provides examples of the use of qualitative and quantitative biocriteria as regulatory tools to complement water quality criteria and standards. The first book to present the technical foundation, rationale, program and policy relevance, and legal basis for the most accurate tools used to assess freshwater natural resource and regulatory efforts, this book provides useful and timely information for water quality managers.
Author: Beth A. Middleton Publisher: John Wiley & Sons ISBN: 0471423238 Category : Technology & Engineering Languages : en Pages : 322
Book Description
The latest cutting-edge research on flood pulsing and wetland restoration in North America Presenting the latest research from leaders in the field of restoration ecology, Flood Pulsing in Wetlands reflects the current movement to incorporate flood pulsing into wetland restoration efforts. Emphasizing how integral flood pulsing is to successful wetland restoration, the book's contributors provide descriptions of restoration projects across North America in which flood pulsing has been primarily used to restore beneficial hydrodynamic conditions to floodplain areas, and improve or save vegetation, wildlife, and terrain. Detailing the importance and applicability of recreating flood-pulsed conditions on floodplains for successful restoration, the first chapter introduces the concept of flood pulse and its unique role in wetland restoration. The following chapters detail the strategies and results of individual projects and the impact flood pulsing had on the projects' overall goals. Case studies detail the history of each region, such as the Southwest, including the Sonoran Desert communities and the Middle Rio Grande; the Missouri River in Montana; the Illinois River Valley; and the Southeast, including Brushy Lake, Arkansas. Also documented is the most famous case of flood pulsing used in the restoration of an entire landscape, the Kissimmee River project. Approaches used to restore specific plant and animal populations, the unique ecological concerns of each region, and the future outlook for each area are fully described. Extensive bibliographies for each chapter make Flood Pulsing in Wetlands: Restoring the Natural Hydrological Balance the essential reference for restoration ecologists, consultants in wetland restoration, government and restoration agency employees, land managers, ecologists, foresters, and geologists.
Author: A. Fares Publisher: WIT Press ISBN: 1845640918 Category : Science Languages : en Pages : 433
Book Description
Coastal watersheds differ from others by their unique features, including proximity to the ocean, weather and rainfall patterns, subsurface features, and land covers. Land use changes and competing needs for valuable water and land resources are especially more distinctive to such watersheds. This book covers recent research relevant to coastal watersheds. It addresses the impact of a stream’s chemical, biological, and sediment pollutants on the quality of the receiving waters, such as estuaries, bays, and near-shore waters. The contents of the book can be divided into three sections; a) overview of hydrological modelling, b) water quality assessment, and c) watershed management. This book differs from other hydrology books by dealing with coastal watersheds which are characterized by their unique features: including weather and rainfall patterns, subsurface characteristics, and land use and cover. In addition to academia, the book should be of interest to organizations concerned with watershed management, such as local and federal governments and environmental groups. Overall, the book is expected to satisfy a great need toward understanding and managing critical areas in many parts of the world.
Author: Nicholas Askounes Ashford Publisher: MIT Press ISBN: 0262012383 Category : Environmental law Languages : en Pages : 1125
Book Description
The past twenty-five years have seen a significant evolution in environmental policy, with new environmental legislation and substantive amendments to earlier laws, significant advances in environmental science, and changes in the treatment of science (and scientific uncertainty) by the courts. This book offers a detailed discussion of the important issues in environmental law, policy, and economics, tracing their development over the past few decades through an examination of environmental law cases and commentaries by leading scholars. The authors focus on pollution, addressing both pollution control and prevention, but also emphasize the evaluation, design, and use of the law to stimulate technical change and industrial transformation, arguing that there is a need to address broader issues of sustainable development. Environmental Law, Policy, and Economics,which grew out of courses taught by the authors at MIT, treats the traditional topics covered in most classes in environmental law and policy, including common law and administrative law concepts and the primary federal legislation. But it goes beyond these to address topics not often found in a single volume: the information-based obligations of industry, enforcement of environmental law, market-based and voluntary alternatives to traditional regulation, risk assessment, environmental economics, and technological innovation and diffusion. Countering arguments found in other texts that government should play a reduced role in environmental protection, this book argues that clear, stringent legal requirements--coupled with flexible means for meeting them--and meaningful stakeholder participation are necessary for bringing about environmental improvements and technologicial transformations.
Author: Sven Erik Jørgensen Publisher: Elsevier ISBN: 008049739X Category : Science Languages : en Pages : 289
Book Description
A New Ecology presents an ecosystem theory based on the following ecosystem properties: physical openness, ontic openness, directionality, connectivity, a complex dynamic for growth and development, and a complex dynamic response to disturbances. Each of these properties is developed in detail to show that these basic and characteristic properties can be applied to explain a wide spectrum of ecological obsevations and convections. It is also shown that the properties have application for environmental management and for assessment of ecosystem health.* Demonstrates an ecosystem theory that can be applied to explain ecological observations and rules* Presents an ecosystem theory based upon a systems approach* Discusses an ecosystem theory that is based on a few basic properties that are characteristic for ecosystmes
Author: Beth Ellen Fry
Author: Beth Ellen Fry
Author: 
Author: 
Author: Avril L. de la Cretaz
Author: Wayne S. Davis
Author: Beth A. Middleton
Author: A. Fares
Author: Geological Survey (U.S.)
Author: Nicholas Askounes Ashford
Author: Sven Erik Jørgensen