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Using Future Climate Projections to Support Water Resources Decision Making in California

May 2009

This paper presents advances in climate projection information that the California Department of Water Resources has made since their 2006 report, "Progress on Incorporating Climate Change into Management of California's Water Resources. " These advances include an improved understanding of how well selected climate models represent historical climate conditions and refined methodologies for representing stream flows, outdoor urban and agricultural water demands, and sea-level rise in planning tools, in order to assess their usefulness in decision making for water resource managers.

Resource Category: Data and tools

 

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The Carbon Footprint of Water

May 2009

Produced by the River Network, this report analyzes the energy and carbon emissions embedded in U.S. water supplies. This information is intended to help river and watershed groups, policy makers, and water managers understand the magnitude of water-related energy use and evaluate the potential to reduce carbon emissions through water conservation, efficiency, reuse and low impact development strategies.

Authors or Affiliated Users: Bevan Griffiths-Sattenspiel, Wendy Wilson

Resource Category: Assessments

 

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USGCRP Global Climate Change Impacts in the U.S. - Water Resources

June 2009

This report is one of seven sector-specific chapters from the United States Global Change Research Program's comprehensive 2009 National Climate Assessment, "Global Climate Change Impacts in the U. S. "  The 'Water Resources' chapter synthesizes current and projected impacts to the U. S. water cycle from climate change. Changes to the water cycle identified in the report include: changes in precipitation patterns and intensity, changes in the incidence of drought, widespread melting of snow and ice, increasing atmospheric water vapor, increasing evaporation, increasing water temperatures, reductions in lake and river ice, and changes in soil moisture and runoff.

Resource Category: Assessments

 

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Climate Change and Water Resources Management - A Federal Perspective: U.S. Geological Survey Circular 1331

2009

This interagency report details a methodology to improve water management in a changing climate, with applicability to federal, state and local water resource managers. Three core areas discussed include: 1) tracking climate change impacts (e. g. monitoring networks, trend analysis); 2) anticipating impacts for decision making in long-range planning (e. g. modeling approaches, futures scenario planning, incorporating climate projections in current plans); and 3) responding with adaptation options (e.

Authors or Affiliated Users: Levi D. Brekke, Julie E. Kiang, J. Rolf Olsen, Roger S. Pulwarty, David A. Raff, D. Phil Turnipseed, Robert S. Webb, Kathleen D. White

Resource Category: Planning

 

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Implications of 21st Century Climate Change for the Hydrology of Washington State

2009

This report is part 1 of Chapter 3 of the Washington Climate Change Impacts Assessment (see separate entry), focusing on water resource impacts for the state. Parts 2 and 3 of this chapter focus on the Puget Sound and the Yakima River Basin respectively. Based on results from 39 global simulations performed for the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR4) projections, this report presents downscaled model findings and the implications on the hydrology of the Pacific Northwest.

Authors or Affiliated Users: Marketa M Elsner, Lan Cuo, Nathalie Voisin, Jeffrey S Deems, Alan F Hamlet, Julie A Vano, Kristian EB Mickelson, Se-Yeun Lee, Dennis P. Lettenmaier

Resource Category: Assessments

 

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A Sustainable Path: Meeting Future Water and Energy Demands in the Arkansas River Basin - Executive Summary

2009

This Executive Summary outlines strategies for municipalities and the energy sector within the Arkansas River Basin to meet growing water use demands while conserving the Basin’s natural resources. The Arkansas River is a major tributary of the Mississippi River which traverses Colorado, Kansas, Oklahoma, and Arkansas. The river's initial basin starts in Colorado, specifically the Arkansas River Valley, where the headwaters derive from the snowpack in the Collegiate Peaks.

Resource Category: Solutions

 

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Climate Change Impacts on Water Management in the Puget Sound Region, Washington, USA

2009

This report presents historical observations and reliability analyses for planning by water utilities in the Puget Sound basin cities of Everett, Seattle, and Tacoma. By comparing changes in streamflow and snowpack and forecasting hydrological changes, this paper reviews the potential of the region's water supply systems to meet future demands. Each of the three water supply systems were analyzed, and water management models for each city are described. The models are then used to explore - without adaptations - the climate resiliency of the three systems over the next century, and the projected changes in water demand.

Authors or Affiliated Users: Julie A. Vano, Nathalie Voisin, Lan Cuo, Alan F. Hamlet, Marketa McGuire Elsner, Richard N. Palmer, Austin Polebitski, Dennis P. Lettenmaier

Resource Category: Assessments

 

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Managing an Uncertain Future: Climate Change Adaptation Strategies for California's Water

October 2008

This report recommends a series of adaptation strategies for state and local water managers to improve their capacity to handle climatic changes. The 10 climate change adaptation strategies for California's water outlined in this report fall under four major categories: investment strategies, regional strategies, statewide strategies, and improving management and decision-making capacity. The report also includes helpful tools for policy makers like a model water-efficient landscape ordinance.

Resource Category: Solutions

 

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Adapting California's Water Management to Climate Change

November 2008

This report outlines concerns for climate change impacts as they will effect California with possible sea level rise, shifting mountain runoff from Spring to Winter, changes in precipitation and runoff volume, drought, high stream and reservoir temperatures, increased water demands, and increased flood flows and frequencies. Options and costs for adaptations to climate change are outlined for water supply, flood management, hydro-power, and water quality. Institutional capacities and constraints to adaptation in water supply management, flood management, and water quality management are described and addressed with methods to improve adaptation capacities.

Authors or Affiliated Users: Ellen Hanak, Jay Lund

Resource Category: Solutions

 

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Climate Change and the Chesapeake Bay: State-of-the-Science Review and Recommendations

September 2008

This report from the Chesapeake Bay Program Science and Technical Advisory Committee (STAC) addresses the current understanding of climate change impacts on the tidal Chesapeake Bay, and identifies critical knowledge gaps and research priorities. It is intended to provide the basis for incorporating climate change considerations into resource management decisions.

Authors or Affiliated Users: Christopher R. Pyke, Raymond Najjar, Mary Beth Adams, Denise Breitburg, Carl Hershner, Robert Howarth, Michael Kemp, Margaret Mulholland, Michael Paolisso, David Secor, Kevin Sellner, Denice Wardrop, Robert Wood

Resource Category: Assessments

 

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