Download or read book Glen Canyon Environmental Studies written by and published by . This book was released on 1988 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Glen Canyon Environmental Studies Executive Summaries of Technical Reports written by and published by . This book was released on 1988 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operation of Glen Canyon Dam written by and published by . This book was released on 1993 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operation of Glen Canyon Dam Colorado River Storage Project Coconcino County written by and published by . This book was released on 1995 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operation of Glen Canyon Dam written by United States. Bureau of Reclamation and published by . This book was released on 1995 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operation of Glen Canyon Dam without special title written by and published by . This book was released on 1995 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Colorado River Ecology and Dam Management written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 11 papers that review the extant information about the Colorado River from an ecosystem perspective and serve as the basis for discussion of the use of ecosystem/earth science information for river management and dam operations. It also contains a synopsis of the committee's findings and recommendations to the Bureau of Reclamation as the agency seeks to change its direction to the management of natural resources.
Download or read book Bureau of Reclamation written by United States. General Accounting Office and published by . This book was released on 1996 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bureau of Reclamation written by Jonathan Bachman and published by DIANE Publishing. This book was released on 1997-02 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: An audit of the Bureau of Reclamation's (BoR) final Environmental Impact Statement (EIS) on the operations of the Glen Canyon Dam (GCD). This report discusses: whether BoR's determination of the impact of various dam-operating alternatives on selected resources was reasonable; and what, if any, concerns still exist on the part of key interested parties about the final EIS. Since the GCD, located in Page, AZ, was completed by the BoR in 1963, it has been used to generate power during periods of high demand. The fluctuation releases of water have caused concerns about the detrimental effects such flows have in the Grand Canyon.
Download or read book Grand Canyon Protection Act of 1990 written by United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Water, Power, and Offshore Energy Resources and published by . This book was released on 1991 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grand Canyon A Century of Change written by Robert H. Webb and published by University of Arizona Press. This book was released on 2021-11-30 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photographs made in Grand Canyon a century ago may provide us today with a sense of history; photographs made a century later from the same vantage points give us a more precise picture of change in this seemingly timeless place. Between 1889 and 1890, Robert Brewster Stanton made photographs every 1-2 miles through the river corridor for the purpose of planning a water-level railroad route and produced the largest collection of photographs of the Colorado River at one point in time. Robert Webb, a USGS hydrologist conducting research on debris flows in the Canyon, obtained the photographs and from 1989 to 1995 replicated all 445 of the views captured by Stanton, matching as closely as possible the original camera positions and lighting conditions. Grand Canyon, a Century of Change assembles the most dramatic of these paired photographs to demonstrate both the persistence of nature and the presence of humanity. Unexpected longevity of some plant species, effects of animal grazing, and expansion of cacti are all captured by the replicate photographs. More telling is evidence of the impact of Glen Canyon Dam: increased riparian vegetation, new marshes, aggraded debris fans, and eroded sand bars. In the accompanying text, Webb provides a thorough analysis of what each pair of photographs shows and places the project in its historical context. Complementing his narrative are six sidebar articles by authorities on Canyon natural history that further attest to a century of change. The level of detail obtained from the photographs represents one of the most extensive long-term monitoring efforts ever conducted in a national park; it is the most detailed documentation effort ever performed using repeat photography. Much more than simply a picture book, Grand Canyon, a Century of Change is an environmental history of the river corridor, a fascinating book that clearly shows the impact of human influence on Grand Canyon and warns us that its future is very much in our hands.
Download or read book River Resource Management in the Grand Canyon written by National Research Council and published by National Academies Press. This book was released on 1996-02-29 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federal management of water is undergoing a change that involves a drastic reduction in the number of new water projects and an increase in emphasis on the quality of water management. This book summarizes and analyzes environmental research conducted in the lower Colorado River below the Glen Canyon Dam under the leadership of the Bureau of Reclamation. It reviews alternative dam operations to mitigate impacts in the lower Colorado riverine environment and the strengths and weaknesses of large federal agencies dealing with broad environmental issues and hydropower production. While many problems remain to be solved, the Bureau of Reclamation through the Glen Canyon area. The lessons of GCES are transferable to other locations and could be the basis for a new era in the management of western waters.
Download or read book Salt Lake City Area Integrated Projects Electric Power Marketing WY CO NM UT AZ written by and published by . This book was released on 1996 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grand Canyon National Park N P Colorado River Management Plan written by and published by . This book was released on 2005 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Multicriteria Decision Making and Analysis written by Jean-Claude Thill and published by Routledge. This book was released on 2019-01-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1999, this volume consists of selected papers presented at the North American Meetings of the RSAI along with invited contributions from scholars active in the field of spatial multicriteria decision making and analysis. It is meant to present diverse lines of research in spatial multicriteria decision making and analysis under the multidisciplinary umbrella of Geographic Information Science. The first part explores selected theoretical and conceptual aspects of spatial multicriteria decision making and analysis not confined to any specific application domain. Part 2 consists of six chapters focusing on various forms of location decision and analysis problems. Finally, part 3 contains five chapters on various spatial decision problems whose systemic scope sets them apart from locational decision problems.
Download or read book Recent Library Additions written by and published by . This book was released on 1988 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ribbon of Green written by Robert H. Webb and published by University of Arizona Press. This book was released on 2007 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Woody wetlands constitute a relatively small but extremely important part of the landscape in the southwestern United States. These riparian habitats support more than one-third of the regionÕs vascular plant species, are home to a variety of wildlife, and provide essential havens for dozens of migratory animals. Because of their limited size and disproportionately high biological value, the goal of protecting wetland environments frequently takes priority over nearly all other habitat types. In The Ribbon of Green, hydrologists Robert H. Webb, and Stanley A. Leake and botanist Raymond M. Turner examine the factors that affect the stability of woody riparian vegetation, one of the largest components of riparian areas. Such factors include the diversion of surface water, flood control, and the excessive use of groundwater. Combining repeat photography with historical context and information on species composition, they document more than 140 years of change. Contrary to the common assumption of widespread losses of this type of ecosystem, the authors show that vegetation has increased on many river reaches as a result of flood control, favorable climatic conditions, and large winter floods that encourage ecosystem disturbance, germination, and the establishment of species in newly generated openings. Bringing well-documented and accessible insights to the ecological study of wetlands, this book will influence our perception of change in riparian ecosystems and how riparian restoration is practiced in the Southwest, and it will serve as an important reference in courses on plant ecology, riparian ecology, and ecosystem management.
