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System Reoperation, Phase 3 Appendix D: Ecosystem Evaluation

California Department of Water Resources (DWR) | August 21st, 2017

Summary

Senate Bill (SB) X2 1 mandated and allocated resources for “planning and feasibility studies to identify potential options for the reoperation of the state's flood prot

Senate Bill (SB) X2 1 mandated and allocated resources for “planning and feasibility studies to identify potential options for the reoperation of the state's flood protection and water supply systems that will optimize the use of existing facilities and groundwater storage capacity.” Specifically, SB X2 1 stipulated that the studies shall be designed to determine the potential to achieve integration of flood protection and water supply systems to increase water supply reliability and flood protection, improve water quality, and provide for ecosystem protection and restoration. For this evaluation, a suite of ecosystem evaluation metrics were developed to evaluate the effects of reoperation scenarios simulated in Phases II and III of the SRP. Phase II reoperation scenarios were used to develop and test the ecosystem evaluation framework, and to quantify the effects of reoperation at Shasta and Oroville paired with conjunctive use and spring pulse flows. The next step was studying the ecosystem effects of Forecast-Based-Operation (FBO) at Shasta and Oroville combined with conjunctive use and spring pulse flows. Finally, t additional scenarios were developed and evaluated to explore the sensitivity of ecosystem performance to FBO and the potential for reoperation to enhance major ongoing ecosystem restoration efforts in the system. The purpose of this report is to document and describe the methods and results from the ecosystem evaluation to date, and to outline additional steps that could optimize reoperation scenarios for ecosystem improvement. RELATED DOCUMENTS: System Reoperation Study, Phase 1: Plan of Study System Reoperation Study, Phase 2: Strategy Formulation and Refinement System Reoperation Study, Phase 2: Appendix A: Forecast?Based Operations Analysis System Reoperation Study, Phase 2: Appendix B: Tradeoff Analysis System Reoperation Study, Phase 3 Report: Assessment of Reoperation Strategies System Reoperation, Phase 3: Appendix C: State Water Project and Central Valley Project Integrated Operations Analysis System Reoperation, Phase 3 Appendix D: Ecosystem Evaluation

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Targeting climate diversity in conservation planning to build resilience to climate change

Ecological Society of America (Wiley) | April 24th, 2015

Summary

Climate change is raising challenging concerns for systematic conservation planning. Are methods based on the current spatial patterns of biodiversity effective g

Climate change is raising challenging concerns for systematic conservation planning. Are methods based on the current spatial patterns of biodiversity effective given long-term climate change? Some conservation scientists argue that planning should focus on protecting the abiotic diversity in the landscape, which drives patterns of biological diversity, rather than focusing on the distribution of focal species, which shift in response to climate change. Climate is one important abiotic driver of biodiversity patterns, as different climates host different biological communities and genetic pools. We propose conservation networks that capture the full range of climatic diversity in a region will improve the resilience of biotic communities to climate change compared to networks that do not. In this study we used historical and future hydro-climate projections from the high resolution Basin Characterization Model to explore the utility of directly targeting climatic diversity in planning. Using the spatial planning tool, Marxan, we designed conservation networks to capture the diversity of climate types, at the regional and sub-regional scale, and compared them to networks we designed to capture the diversity of vegetation types. By focusing on the Conservation Lands Network (CLN) of the San Francisco Bay Area as a real- world case study, we compared the potential resilience of networks by examining two factors: the range of climate space captured, and climatic stability to 18 future climates, reflecting different emission scenarios and global climate models. We found that the climate-based network planned at the sub-regional scale captured a greater range of climate space and showed higher climatic stability than the vegetation and regional based-networks. At the same time, differences among network scenarios are small relative to the variance in climate stability across global climate models. Across different projected futures, topographically heterogeneous areas consistently show greater climate stability than homogenous areas. The analysis suggests that utilizing high-resolution climate and hydrological data in conservation planning improves the likely resilience of biodiversity to climate change. We used these analyses to suggest new conservation priorities for the San Francisco Bay Area.

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Technical Report for the Interagency Ecological Program (IEP) Pelagic Organism Decline (POD) Workgroup: Assessment of Aquatic Herbicide Use in the Delta

San Francisco Estuary Institute (SFEI) | May 15th, 2006

Summary

Since 2001, the California Department of Boating and Waterways (DBW) has conducted an extensive water quality monitoring program in conjunction with its aquatic herbicide

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Technologies for Passing Fish at Large Dams

California Department of Water Resources (DWR) | June 1st, 2013

Summary

Given the possible conditions that may exist in Central Valley streams as the climate warms, many researchers and agencies have recognized the need to evaluate opportunit

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Testimony of Wade Crowfoot, California Secretary for Natural Resources House Natural Resources Committee Subcommittee on Water, Oceans and Wildlife

Salton Sea Authority | September 24th, 2020

Summary

Thank you, Chairman Huffman and members of the Subcommittee for the opportunity to testify today on how the federal government can partner with California to inve

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Testing the Established Hydrogeologic Model of Source Water to the Amargosa River Basin, Inyo and San Bernardino Counties, California

Environmental Forensics (Taylor & Francis) | November 15th, 2015

Summary

The current conceptual hydrogeologic model established for source water to the Amargosa River was tested in order to help inform management decisions regarding the Amargo

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The Decline of Striped Bass in the Sacramento-San Joaquin Estuary, California

American Fisheries Society (AFS) | July 1st, 1985

Summary

The abundance of young striped bass Morone saxatilis in the Sacramento-San Joaquin Estuary has suffered an unsteady but persistent decline from population levels that wer

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The Delta on Fast Forward - Thinking Beyond the Next Crisis (Summary for Policymakers of the State of Bay Delta Science 2016)

University of California, Davis (UC Davis) | December 1st, 2016

Summary

Delta science needs to push beyond its tendency to focus on short-term policy mandates and near-term crises. Taking a longer, 50- to 100-year viewpoint has been part of v

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The Delta Plan

Delta Stewardship Council (Delta Council) | May 16th, 2013

Summary

The Delta Plan is a comprehensive, long-term management plan for the Delta. Required by the 2009 Delta Reform Act, it creates new rules and recommendations to further the

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The demographic decline of a sea lion population followed multi‐decadal sea surface warming

Nature Portfolio (Springer Nature) | June 26th, 2020

Summary

The population growth of top predators depends largely on environmental conditions suitable for aggregating sufficient and high‐quality prey. We reconstructe

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System Reoperation, Phase 3 Appendix D: Ecosystem Evaluation

Targeting climate diversity in conservation planning to build resilience to climate change

Technical Report for the Interagency Ecological Program (IEP) Pelagic Organism Decline (POD) Workgroup: Assessment of Aquatic Herbicide Use in the Delta

Technologies for Passing Fish at Large Dams

Testimony of Wade Crowfoot, California Secretary for Natural Resources House Natural Resources Committee Subcommittee on Water, Oceans and Wildlife

Testing the Established Hydrogeologic Model of Source Water to the Amargosa River Basin, Inyo and San Bernardino Counties, California

The Decline of Striped Bass in the Sacramento-San Joaquin Estuary, California

The Delta on Fast Forward - Thinking Beyond the Next Crisis (Summary for Policymakers of the State of Bay Delta Science 2016)

The Delta Plan

The demographic decline of a sea lion population followed multi‐decadal sea surface warming

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