Download or read book An Investigation of the Geomorphology and Flooding Characteristics of a Small Stream in the Upper Big Walnut Creek Watershed Ohio written by Beth Ellen Fry and published by . This book was released on 2006 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Journal of Soil and Water Conservation written by and published by . This book was released on 2012 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 25, no. 1 contains the society's Lincoln Chapter's Resource conservation glossary.
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Download or read book The National Hydrography Dataset written by and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of urban development on stream ecosystems in nine metropolitan study areas across the United States written by James F. Coles and published by . This book was released on 2012 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Los Angeles River written by Blake Gumprecht and published by JHU Press. This book was released on 2001-04-30 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of the J. B. Jackson Prize from the Association of American Geographers Three centuries ago, the Los Angeles River meandered through marshes and forests of willow and sycamore. Trout spawned in its waters and grizzly bears roamed its shores. The bountiful environment the river helped create supported one of the largest concentrations of Indians in North America. Today, the river is made almost entirely of concrete. Chain-link fence and barbed wire line its course. Shopping carts and trash litter its channel. Little water flows in the river most of the year, and nearly all that does is treated sewage and oily street runoff. On much of its course, the river looks more like a deserted freeway than a river. The river's contemporary image belies its former character and its importance to the development of Southern California. Los Angeles would not exist were it not for the river, and the river was crucial to its growth. Recognizing its past and future potential, a potent movement has developed to revitalize its course. The Los Angeles River offers the first comprehensive account of a river that helped give birth to one of the world's great cities, significantly shaped its history, and promises to play a key role in its future.
Download or read book Stormwater Management Alternatives written by Joachim Toby Tourbier and published by . This book was released on 1980 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Adaptation in the Ozark and Ouachita Mountains written by George Sabo and published by . This book was released on 1990 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texas Riparian Areas written by Nicole A. Davis and published by Texas A&M University Press. This book was released on 2014-01-29 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Riparian areas—transitional zones between the aquatic environments of streams, rivers, and lakes and the terrestrial environments on and alongside their banks—are special places. They provide almost two hundred thousand miles of connections through which the waters of Texas flow. Keeping the water flowing, in as natural a way as possible, is key to the careful and wise management of the state’s water resources. Texas Riparian Areas evolved from a report commissioned by the Texas Water Development Board as Texas faced the reality of over-allocated water resources and long-term if not permanent drought conditions. Its purpose was to summarize the characteristics of riparian areas and to develop a common vocabulary for discussing, studying, and managing them. 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 The Control of Nature written by John McPhee and published by Farrar, Straus and Giroux. This book was released on 2011-04-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: While John McPhee was working on his previous book, Rising from the Plains, he happened to walk by the engineering building at the University of Wyoming, where words etched in limestone said: "Strive on--the control of Nature is won, not given." In the morning sunlight, that central phrase--"the control of nature"--seemed to sparkle with unintended ambiguity. Bilateral, symmetrical, it could with equal speed travel in opposite directions. For some years, he had been planning a book about places in the world where people have been engaged in all-out battles with nature, about (in the words of the book itself) "any struggle against natural forces--heroic or venal, rash or well advised--when human beings conscript themselves to fight against the earth, to take what is not given, to rout the destroying enemy, to surround the base of Mt. Olympus demanding and expecting the surrender of the gods." His interest had first been sparked when he went into the Atchafalaya--the largest river swamp in North America--and had learned that virtually all of its waters were metered and rationed by a U.S. Army Corps of Engineers' project called Old River Control. In the natural cycles of the Mississippi's deltaic plain, the time had come for the Mississippi to change course, to shift its mouth more than a hundred miles and go down the Atchafalaya, one of its distributary branches. The United States could not afford that--for New Orleans, Baton Rouge, and all the industries that lie between would be cut off from river commerce with the rest of the nation. At a place called Old River, the Corps therefore had built a great fortress--part dam, part valve--to restrain the flow of the Atchafalaya and compel the Mississippi to stay where it is. In Iceland, in 1973, an island split open without warning and huge volumes of lava began moving in the direction of a harbor scarcely half a mile away. It was not only Iceland's premier fishing port (accounting for a large percentage of Iceland's export economy) but it was also the only harbor along the nation's southern coast. As the lava threatened to fill the harbor and wipe it out, a physicist named Thorbjorn Sigurgeirsson suggested a way to fight against the flowing red rock--initiating an all-out endeavor unique in human history. On the big island of Hawaii, one of the world's two must eruptive hot spots, people are not unmindful of the Icelandic example. McPhee went to Hawaii to talk with them and to walk beside the edges of a molten lake and incandescent rivers. Some of the more expensive real estate in Los Angeles is up against mountains that are rising and disintegrating as rapidly as any in the world. After a complex coincidence of natural events, boulders will flow out of these mountains like fish eggs, mixed with mud, sand, and smaller rocks in a cascading mass known as debris flow. Plucking up trees and cars, bursting through doors and windows, filling up houses to their eaves, debris flows threaten the lives of people living in and near Los Angeles' famous canyons. At extraordinary expense the city has built a hundred and fifty stadium-like basins in a daring effort to catch the debris. Taking us deep into these contested territories, McPhee details the strategies and tactics through which people attempt to control nature. Most striking in his vivid depiction of the main contestants: nature in complex and awesome guises, and those who would attempt to wrest control from her--stubborn, often ingenious, and always arresting characters.
Download or read book Technical Guidance Manual for Developing Total Maximum Daily Loads written by and published by DIANE Publishing. This book was released on 1997 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics and Chemistry of Lakes written by Abraham Lerman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lake, as a body of water, is in continuous interaction with the rocks and soils in its drainage basin, the atmosphere, and surface and groundwaters. Human industrial and agricultural activities introduce new inputs and processes into lake systems. This volume is a selection of ten contributions dealing with diverse aspects of lake systems, including such subjects as the geological controls of lake basins and their histories, mixing and circulation patterns in lakes, gaseous exchange between the water and atmosphere, and human input to lakes through atmospheric precipitation and surficial runoff. This work was written with a dual goal in mind: to serve as a textbook and to provide professionals with in-depth expositions and discussions of the more important aspects of lake systems.
Download or read book Ecological Regions of North America written by and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.
Download or read book Hydrology for Engineers SI Metric Edition written by RK. Linsley and published by . This book was released on 1988 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Resources of Tennessee written by Tennessee. State Geological Survey and published by . This book was released on 1911 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 7, no. 1 and v. 9, no. 1 include the division's Administrative report for 1915/16-/1917/18.
Download or read book Natural Channel Systems written by Ontario. Ministry of Natural Resources and published by Ontario, Ministry of Natural Resources. This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management and design of natural channel systems may be defined as the process by which new or reconstructed stream channels and their associated flood plain riparian systems are designed to be naturally functional, stable, healthy, productive, and sustainable. This document is intended to provide an approach to natural channel management and design by identifying important functional ecological relationships between stream channels, their associated riparian and flood plain systems, and their watersheds. It provides a conceptual basis for natural channel systems, describes design principles, and also introduces a stream classification system that can be used in identifying often overlooked geomorphological principles and attributes of stream and valley systems. A case study design application and a glossary are included.
