Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 500

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Book Description

Author: Keith Petersen
Publisher:
ISBN:
Category : Columbia River
Languages : en
Pages : 264

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Book Description

Author:
Publisher: Office of Technology Assessment
ISBN:
Category : Nature
Languages : en
Pages : 180

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Book Description

Author: United States. Environmental Protection Agency. Office of Water
Publisher:
ISBN:
Category : Toxicology
Languages : en
Pages : 344

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Book Description

Author:
Publisher:
ISBN:
Category : Grand Coulee Dam (Wash.)
Languages : en
Pages : 12

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Book Description

Author: James E. McDonald
Publisher: Washington, D.C. : U.S. Army Corps of Engineers, Engineer Research and Development Center
ISBN:
Category : Arch dams Maintenance repair Case studies
Languages : en
Pages : 272

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Book Description
This study was conducted to identify methods that have been used in the repair and rehabilitation of concrete dams. Information was obtained through literary searches, discussions with project personnel, and visits to project sites. Each case history includes a background of the project, the deficiency that necessitated repair or rehabilitation, and descriptions of materials and methods used in the repair or rehabilitation. When available, the cost of the repair project and the performance of the repair to date have been included. Case histories included in this report cover a range of deficiencies in concrete structures, including cracking, spalling, erosion, leakage, inadequate PMF capacity, expansion resulting from alkali-aggregate reaction, instability, and insufficient storage capacity.

Author: International Union for Conservation of Nature and Natural Resources
Publisher: World Conservation Union
ISBN:
Category : Nature
Languages : en
Pages : 144

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Book Description
An environmental flow is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits where there are competing water uses and where flows are regulated. Pioneering efforts in South Africa, Australia and the United States have shown that the process to establish them poses great challenges. Second in the series of the Water & Nature Initiative, this guide draws extensively on the experiences in these countries to offer hands-on advice and practical guidance on technical issues for this emerging issue on the water resource agenda.

Author: Daniel P. Loucks
Publisher: Springer
ISBN: 3319442341
Category : Technology & Engineering
Languages : en
Pages : 635

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Book Description
This book is open access under a CC BY-NC 4.0 license. This revised, updated textbook presents a systems approach to the planning, management, and operation of water resources infrastructure in the environment. Previously published in 2005 by UNESCO and Deltares (Delft Hydraulics at the time), this new edition, written again with contributions from Jery R. Stedinger, Jozef P. M. Dijkman, and Monique T. Villars, is aimed equally at students and professionals. It introduces readers to the concept of viewing issues involving water resources as a system of multiple interacting components and scales. It offers guidelines for initiating and carrying out water resource system planning and management projects. It introduces alternative optimization, simulation, and statistical methods useful for project identification, design, siting, operation and evaluation and for studying post-planning issues. The authors cover both basin-wide and urban water issues and present ways of identifying and evaluating alternatives for addressing multiple-purpose and multi-objective water quantity and quality management challenges. Reinforced with cases studies, exercises, and media supplements throughout, the text is ideal for upper-level undergraduate and graduate courses in water resource planning and management as well as for practicing planners and engineers in the field.

Author: Gunnar M. Brune
Publisher: Texas A&M University Press
ISBN: 9781585441969
Category : Business & Economics
Languages : en
Pages : 616

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Book Description
This text explores the natural history of Texas and more than 2900 springs in 183 Texas counties. It also includes an in-depth discussion of the general characteristics of springs - their physical and prehistoric settings, their historical significance, and their associated flora and fauna.

Author:
Publisher:
ISBN:
Category : Oregon National Historic Trail
Languages : en
Pages : 292

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Book Description