Download or read book THE ROLE OF CLIMATE VARIABILITY IN OPERATIONAL WATER SUPPLY FORECASTING FOR THE WESTERN UNITED STATES written by and published by . This book was released on 2005 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The single greatest uncertainty in seasonal water supply forecasts is the amount of precipitation falling after the forecast issue date. There has been a long history of attempting to incorporate seasonal climate forecasts into operational water supply forecasts. The skill of these precipitation forecasts remains low especially compared to highly confident snow-based streamflow forecasts. Early in the season (e.g., September-December), however, large-scale climate indices are the best available predictors of future water supplies. This dissertation suggests practical methods for issuing climate-based operational streamflow forecasts. This study also documents the existence of strong decadal trends in water supply forecast skill. Across the Western US, 1 April forecast skill peaked in the 1960-1970s and has been on the decline more recently. The high skill period was a very calm period in the Western US, with a near absence of extreme (wet or dry) spring precipitation events. In contrast, the period after 1980 has had the most variable, persistent, and skewed spring and summer streamflows in the modern record. Spring precipitation is also now more variable than it has been since at least the 1930s. This rise in spring precipitation variability in the Colorado/Rio Grande Basins and the Pacific Northwest is the likely cause behind the recent decline in water supply forecast skill.
Download or read book Managing Water Resources in the West Under Conditions of Climate Uncertainty written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question of whether the earth's climate is changing in some significant human-induced way remains a matter of much debate. But the fact that climate is variable over time is well known. These two elements of climatic uncertainty affect water resources planning and management in the American West. Managing Water Resources in the West Under Conditions of Climate Uncertainty examines the scientific basis for predictions of climate change, the implications of climate uncertainty for water resources management, and the management options available for responding to climate variability and potential climate change.
Download or read book Water Climate Western U S written by W Lewis and published by . This book was released on 2003-05-05 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water and Climate in the Western United States highlights the opportunity for and necessity of change in management of water, the West's most crucial resource. As old policies and institutions fail to meet changing demands for and availability of w
Download or read book Extreme Hydrology and Climate Variability written by Assefa M. Melesse and published by Elsevier. This book was released on 2019-07-03 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme Hydrology and Climate Variability: Monitoring, Modelling, Adaptation and Mitigation is a compilation of contributions by experts from around the world who discuss extreme hydrology topics, from monitoring, to modeling and management. With extreme climatic and hydrologic events becoming so frequent, this book is a critical source, adding knowledge to the science of extreme hydrology. Topics covered include hydrometeorology monitoring, climate variability and trends, hydrological variability and trends, landscape dynamics, droughts, flood processes, and extreme events management, adaptation and mitigation. Each of the book's chapters provide background and theoretical foundations followed by approaches used and results of the applied studies. This book will be highly used by water resource managers and extreme event researchers who are interested in understanding the processes and teleconnectivity of large-scale climate dynamics and extreme events, predictability, simulation and intervention measures. Presents datasets used and methods followed to support the findings included, allowing readers to follow these steps in their own research Provides variable methodological approaches, thus giving the reader multiple hydrological modeling information to use in their work Includes a variety of case studies, thus making the context of the book relatable to everyday working situations for those studying extreme hydrology Discusses extreme event management, including adaption and mitigation
Download or read book Decision support Experiments and Evaluations Using Seasonal to interannual Forecasts and Observational Data written by Nancy Kay Beller-Simms and published by . This book was released on 2008 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Climate in the Western United States written by William M. Lewis Jr. and published by University Press of Colorado. This book was released on 2003-05-05 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water and Climate in the Western United States highlights the opportunity for and necessity of change in management of water, the West's most crucial resource. As old policies and institutions fail to meet changing demands for and availability of w
Download or read book Managing Climate Risk in Water Supply Systems written by Casey Brown and published by IWA Publishing. This book was released on 2013-02-15 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water resources systems provide multiple services and, if managed properly, can contribute significantly to social well-being and economic growth. However, extreme or unexpected hydroclimatic conditions, such as droughts and floods, can adversely affect or even completely interrupt these services. This manual seeks to provide knowledge, resources and techniques for water resources professionals to manage the risks and opportunities arising from hydroclimatic variability and change. Managing Climate Risk in Water Supply Systems provides materials and tools designed to empower technical professionals to better understand the key issues in water supply systems. These materials are part of a suite of resources that are developed to share climate risk knowledge related to a range of sectors and climate-related problems. The text motivates students by providing practical exercises and it stimulates readers or workshop participants to consider options and analyses that highlight opportunities for better management in the water systems in which they are stakeholders. Managing Climate Risk in Water Supply Systems provides a hands-on approach to learning key concepts in hydrology and climate science as they relate to climate risk management in water supply systems. The primary audience is technical professionals in water resources management and provides a practical approach to training. Editors: Casey Brown, University of Massachusetts at Amherst, MA, USA and M. Neil Ward, Independent Consultant, New Jersey, USA
Download or read book Climate Change and Water Resources Planning Criteria written by Kenneth D. Frederick and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global climate change is expected to have major impacts on water resources and aquatic ecosystems. This prospect presents planners, who are already struggling to meet the demands of growing populations and economies, with new challenges. This volume examines these challenges and the resulting conceptual issues for water planning and project evaluation practices. The book is the first attempt to consider whether and how water resources, planning principles and evaluation criteria should be altered in view of the potential impacts of anthropogenically induced climate change. The principles and procedures that are in use today along with new approaches to nonstructural flood plain management, watershed management, water markets, and wetland banking will serve as the basis for the policies and strategies that deal with climate variability and anticipated change. This collection of papers reviews what water management ideas work, which ones need to be changed, and how planners and managers should begin incorporating aspects of risk and uncertainty into management decisions to deal expertly with climate change.
Download or read book Addressing Climate Change in Long term Water Resources Planning and Management written by Levi D. Brekke and published by DIANE Publishing. This book was released on 2011 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the water management community¿s needs for climate change info. and tools to support long-term planning. Technical specialists and program managers have worked with their planners, water operators, and environmental compliance managers to identify the information and tools most relevant to their programs. They also have engaged and consulted with other Federal, State, and local agencies and stakeholder groups that have a role in water and water-related resource management to identify complementary priorities and individual perspectives. This report will help focus research and technology efforts to address info. and tools gaps relevant to the water management user community. Charts and tables. This is a print on demand report.
Download or read book Preparing Water Supply Systems for Climate Change written by Leslie DeCristofaro and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fresh water is a resource strongly impacted by climactic conditions. Water supply systems in the northeastern United States will see the effects of climate change on their water quality and quantity in various ways, including changes in seasonality of flows, changes in the frequency and magnitude of extreme precipitation events, and changes in the variability of precipitation and water availability. Five northeastern water supplies examined are expected to maintain at least 95% monthly reliability over a range of climates wider than the current projections. However, model results indicate that turbidity levels in New York City's Ashokan Reservoir will change with changes in mean annual precipitation and temperature. Through a series of linked models of stochastic weather, hydrologic processes, and the supply system, Chapter 2 demonstrates the robustness of several adaptations available to the New York City Water Supply System to mitigate drought and manage water quality under climate change projections through the end of the century. Results illustrate how reducing demand and managing storage and releases based on hydrologic forecasting reduce the frequency of drought warnings and emergencies and improve system reliability in all climate change scenarios investigated. Through operations that limit turbidity propagation through the system and improvements to the Catskill Aqueduct to lower the minimum flow under conditions with high turbidity, results demonstrate decreases lower turbidity loads and a reduction in emergency Alum use. These options demonstrate cumulative benefits when used in combination. Chapter 3 seeks to quantify the amount of water supply system performance improvement that can be expected from improved forecasting in managing drought conditions. Using existing forecasts for Lancaster, PA, synthetic forecasts with varying quality, and a system model of the Baltimore, MD water supply system, this chapter demonstrated a method for quantifying improved system performance as a function of improved forecast quality, finding improvements in system performance to be approximately linear over a large range of forecast quality. Chapter 4 tests a new method for the creation of statistical first-order autoregressive streamflow forecasts by conditioning the parameters and ensemble variance on a "hydrologic regime," defined in several different ways. National Weather Service seasonal outlooks for precipitation are used as categorical forecasts of precipitation. The forecasts are found to have small positive skill, and for two of three sites, this skill is enough to result in small gains in the CRPSS of the ensemble hydrologic forecast. Utilizing perfect categorical forecasts indicates that adjusting the ensemble variance (rather than the autoregressive parameter) based on forecasted precipitation is responsible for the majority of improvements in skill for this method. The method is limited by the difficulty of long lead-time precipitation forecasting.
Download or read book Climate Variability and Water Dependent Sectors written by Dannele E. Peck and published by Routledge. This book was released on 2016-02-22 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for water in agricultural, municipal, industrial, and environmental uses is growing. More frequent and severe extreme weather conditions now exacerbate water shortages in many locations and existing infrastructure to store and release water rarely has the capacity to both prevent floods during wet periods and meet demand during drought periods. Competition among sectors adds pressure not only on water infrastructure, but also on management policies and allocation institutions. This book of contributed chapters assesses the performance of existing infrastructure, institutions and policies under different climate variability scenarios. It also provides suggestions for minimizing conflict over scarce water resources. More flexible water-allocation institutions and management policies, and better tools for decision-making under uncertainty will be required to maximize society’s net benefit from less reliable water resources. The chapters show how incentives for individuals to conserve water, and policies for helping vulnerable populations prepare for and recover from extreme events, will also need to be improved. This book was originally published as a special issue of the Journal of Natural Resources Policy Research.
Download or read book Thriving on Our Changing Planet A Decadal Strategy for Earth Observation from Space written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-06-18 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.
Download or read book Water Supply Forecasts for the Western United States written by and published by . This book was released on 1948 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate and Streamflow Variability Related to Surface Water Supply in the Western United States written by David Changnon and published by . This book was released on 1990 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Change and Water Resources Management written by Levi D. Brekke and published by DIANE Publishing. This book was released on 2009-11 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many challenges, including climate change, face the Nation¿s water managers. The Intergovernmental Panel on Climate Change (IPCC) has provided estimates of how climate may change, but more understanding of the processes driving the changes, the sequences of the changes, and the manifestation of these global changes at different scales could be beneficial. Since the changes will likely affect fundamental drivers of the hydrological cycle, climate change may have a large impact on water resources and water resources managers. The purpose of this interagency report is to explore strategies to improve water management by tracking, anticipating, and responding to climate change. Charts and tables.
Download or read book Water Supply Outlook for the Western United States written by and published by . This book was released on 1991-03 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decision support Experiments and Evaluations Using Seasonal to interannual Forecasts and Observational Data written by U.s. Climate Change Science Program and published by CreateSpace. This book was released on 2015-02-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The core mission of the U.S. Climate Change Science Program (CCSP) is to "Facilitate the creation and application of knowledge of the Earth's global environment through research, observations, decision support, and communication". To accomplish this goal, the CCSP has commissioned 21 Synthesis and Assessment Products to summarize current knowledge and evaluate the extent and development of this knowledge for future scientific explorations and policy planning. These Products fall within five goals, namely: 1. Improve knowledge of the Earth's past and present climate and environment, including its natural variability, and improve understanding of the causes of observed variability and change; 2. Improve quantification of the forces bringing about changes in the Earth's climate and related systems; 3. Reduce uncertainty in projections of how the Earth's climate and environmental systems may change in the future; 4. Understand the sensitivity and adaptability of different natural and managed ecosystems and human systems to climate and related global changes; and 5. Explore the uses and identify the limits of evolving knowledge to manage risks and opportunities related to climate variability and change. CCSP Synthesis and Assessment Product 5.3 is one of three products to be developed for the final goal. This Product directly addresses decision-support experiments and evaluations that have used seasonal-to-interannual forecasts and observational data, and is expected to inform (1) decision makers about the experiences of others who have experimented with these forecasts and data in resource management; (2) climatologists, hydrologists, and social scientists on how to advance the delivery of decision support resources that use the most recent forecast products, methodologies, and tools; and (3) science and resource managers as they plan for future investments in research related to forecasts and their role in decision support.
