Simulation-Optimization Framework to Support Sustainable Watershed Development by Mimicking the Pre-development Flow Regime PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The modification of land and water resources for human use alters the natural hydrologic flow regime of a downstream receiving body of water. The natural flow regime is essential for sustaining biotic structure and equilibrium within the ecosystem. A typical approach to achieve a hydrologically friendly development is to locate and design stormwater control structures, or Best Management Practices (BMPs), to match peak and minimum flows for design storms. A more aggressive strategy for environmentally sustainable development would ensure that there is no difference between pre- and post-development flow regimes for all storms and at all times through the design of development strategies that maintain the natural flow regime under post-development conditions at the watershed outlet. Many sub-catchments contribute to the composite flow at the watershed outlet of a large watershed, and at each of these sub-catchments, the flow regime may be altered, though the flow regime is maintained at the larger watershed level. This study uses a simulation-optimization modeling framework to analyze a hydrologic metric that represents the total degree of hydrologic alteration for a given development pattern. The objective is to minimize the hydrologic alteration by iteratively updating and modifying the development pattern in the watershed subject to maintaining some pre-defined minimum level of total development. Thirty-three hydrologic indices are used to characterize variation in the flow regime and are represented as one value indicating the hydrologic alteration for that development scenario. Continuous simulation of urban runoff is executed by the Stormwater Management Model (SWMM). Two optimization techniques, Nelder Meade (NM) and Genetic Algorithm (GA), are applied to the watershed as separate search techniques and then combined into a hybrid approach to investigate the methodology. Comparison of the solutions yields a distinct trade-off between total land developed and de.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The modification of land and water resources for human use alters the natural hydrologic flow regime of a downstream receiving body of water. The natural flow regime is essential for sustaining biotic structure and equilibrium within the ecosystem. A typical approach to achieve a hydrologically friendly development is to locate and design stormwater control structures, or Best Management Practices (BMPs), to match peak and minimum flows for design storms. A more aggressive strategy for environmentally sustainable development would ensure that there is no difference between pre- and post-development flow regimes for all storms and at all times through the design of development strategies that maintain the natural flow regime under post-development conditions at the watershed outlet. Many sub-catchments contribute to the composite flow at the watershed outlet of a large watershed, and at each of these sub-catchments, the flow regime may be altered, though the flow regime is maintained at the larger watershed level. This study uses a simulation-optimization modeling framework to analyze a hydrologic metric that represents the total degree of hydrologic alteration for a given development pattern. The objective is to minimize the hydrologic alteration by iteratively updating and modifying the development pattern in the watershed subject to maintaining some pre-defined minimum level of total development. Thirty-three hydrologic indices are used to characterize variation in the flow regime and are represented as one value indicating the hydrologic alteration for that development scenario. Continuous simulation of urban runoff is executed by the Stormwater Management Model (SWMM). Two optimization techniques, Nelder Meade (NM) and Genetic Algorithm (GA), are applied to the watershed as separate search techniques and then combined into a hybrid approach to investigate the methodology. Comparison of the solutions yields a distinct trade-off between total land developed and de.
Author: Laurel Hughes Pierpont
Publisher:
ISBN:
Category :
Languages : en
Pages : 69
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Book Description
Keywords: optimization, simulation, watershed management, indicators, hydrologic alteration, natural flow regime, BMPs.
Author: Ehsan Goodarzi
Publisher: Springer Science & Business Media
ISBN: 3319044001
Category : Technology & Engineering
Languages : en
Pages : 301
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Book Description
This book presents the basics of linear and nonlinear optimization analysis for both single and multi-objective problems in hydrosystem engineering. The book includes several examples with various levels of complexity in different fields of water resources engineering. The examples are solved step by step to assist the reader and to make it easier to understand the concepts. In addition, the latest tools and methods are presented to help students, researchers, engineers and water managers to properly conceptualize and formulate resource allocation problems, and to deal with the complexity of constraints in water demand and available supplies in an appropriate way.
Author: David Lewis Feldman
Publisher: Edward Elgar Publishing
ISBN: 1783478578
Category : Business & Economics
Languages : en
Pages : 211
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Book Description
Cities place enormous pressures on freshwater quality and availability because they are often located some distance from the water sources needed by their populations. This fact compels planners to build infrastructure to divert water from increasingly distant outlying rural areas, thus disrupting their social fabric and environment. In addition, increasing urbanization due to population growth, economic change, and sprawl places huge burdens upon the institutions, as well as the infrastructure, that deliver, protect, and treat urban water. This book assesses the challenges facing the world’s cities in providing reliable, safe, and plentiful supplies through infrastructural, economic, legal, and political strategies.
Author: Ashok Sharma
Publisher: Woodhead Publishing
ISBN: 0128128445
Category : Science
Languages : en
Pages : 630
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Book Description
Approaches to Water Sensitive Urban Design: Potential, Design, Ecological Health, Economics, Policies and Community Perceptions covers all aspects on the implementation of sustainable storm water systems for urban and suburban areas whether they are labeled as WSUD, Low Impact Development (LID), Green Infrastructure (GI), Sustainable Urban Drainage Systems (SUDS) or the Sponge City Concept. These systems and approaches are becoming an integral part of developing water sensitive cities as they are considered very capable solutions in addressing issues relating to urbanization, climate change and heat island impacts in dealing with storm water issues. The book is based on research conducted in Australia and around the world, bringing in perspectives in an ecosystems approach, a water quality approach, and a sewer based approach to stormwater, all of which are uniquely covered in this single resource. - Presents a holistic examination of the current knowledge on WSUD and storm water, including water quality, hydrology, social impacts, economic impacts, ecosystem health, and implementation guidelines - Includes additional global approaches to WSUD, including SUDS, LID, GI and the Sponge City Concept - Covers the different perspectives from Australia (ecosystem based), the USA (water quality based) and Europe (sewer based) - Addresses storm water management during the civil construction stage when much of the ecological damage can be done
Author: Binaya Kumar Mishra
Publisher: Springer Nature
ISBN: 3030531104
Category : Science
Languages : en
Pages : 196
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Book Description
This book presents solutions to address water security in rapidly urbanizing cities, and explores the new paradigms of water security in changing contexts. Highlighting the latest developments in water research, changes in water policy, and current discourses on water security, the book also provides information and tools for local stakeholders, water managers, and policymakers to build the capacity for sustainable water governance. The book discusses a wide range of sustainable solutions and their implementation to ensure that the balance between water supply and demand remains sustainable in the long term, with a focus on local solutions to build capacity and developing policy awareness for a wide range of stakeholders. As the concept of urban water security in changing contexts is open to multiple interpretations, the authors set out various approaches. Providing an overview of the changing perspectives of urban water security in different contexts, the book is based on findings of the Asia-Pacific Network water security project at the United Nations University, Tokyo, as well as the authors' current research-based at Pokhara University, Nepal, Hosei University, Tokyo, Institute for the Global Environmental Strategies, Japan and the Australian National University, Australia. The book also includes the views of international authorities (such as water experts) on the subject. The solutions are complemented by analysis of case studies of various localized sustainable solutions at different scales. The book is a valuable resource for water professionals and policymakers around the globe, academics, teachers working in water-related areas, NGOs, think thanks, water research institutes, donor organizations, and international and local water utility services.
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Publisher: ScholarlyEditions
ISBN: 1464967261
Category : Technology & Engineering
Languages : en
Pages : 431
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Book Description
Issues in Urban Policy and Planning / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Urban Policy and Planning. The editors have built Issues in Urban Policy and Planning: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Urban Policy and Planning in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Urban Policy and Planning: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: Marcio Giacomoni
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Population growth, urbanization and climate change threaten urban water systems. The rise of demands caused by growing urban areas and the potential decrease of water availability caused by the increase of frequency and severity of droughts challenge the continued well-being of society. Due to increasing environmental and financial constraints, water management paradigms have shifted from supply augmentation to demand management, and water conservation initiatives may efficiently decrease water demands to more sustainable levels. To provide reliable assessment of the efficiencies of different demand management strategies, new modeling techniques are needed that can simulate decentralized decisions of consumers and their interactions with the water system. An integrated simulation-optimization framework, based on the paradigm of Complex Adaptive Systems, is developed here to model dynamic interactions and adaptations within social, built, and natural components of urban water systems. The framework goes beyond tradition engineering simulations by incorporating decentralized, heterogeneous and autonomous agents, and by simulating dynamic feedback loops among modeling components. The framework uses modeling techniques including System Dynamics, Cellular Automata, and Agent-based Modeling to simulate housing and population growth, a land use change, residential water consumption, the hydrologic cycle, reservoir operation, and a policy/decision maker. This research demonstrates the applicability of the proposed framework through a series of studies applied to a water supply system of a large metropolitan region that is located in a semi-arid region and suffers recurrently from severe droughts. A set of adaptive demand management strategies, that apply contingency restrictions, land use planning, and water conservation technologies, such as rainwater harvesting systems, are evaluated. A multi-objective Evolutionary Algorithm is coupled with the CAS simulation framework to identify optimal strategies and explore conflicting objectives within a water system. The results demonstrate the benefits of adaptive management by updating management decisions to changing conditions. This research develops a new hydrologic sustainability metric, developed to quantify the stormwater impacts of urbanization. The Hydrologic Footprint Residence captures temporal and spatial hydrologic characteristics of a flood wave passing through a stream segment and is used to assess stormwater management scenarios, including Best Management Practices and Low Impact Development.
Author: Joachim Toby Tourbier
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 372
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Book Description
Author: Mohan Munasinghe
Publisher: Cambridge University Press
ISBN: 1108404154
Category : Business & Economics
Languages : en
Pages : 689
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Book Description
Provides a rigorous analysis of sustainable development that includes practical, policy-relevant, global case studies, explained concisely and clearly.
