Skip to main navigation.
Skip to page content.
Facebook
Twitter
Linkedin
Email
Navigation menu
Login
Main navigation
Science activities
Organizations
People
Visualizations
Get Started
Contact us
Search
Submit
×
Science activities
Reset filters
23 records
Text search
Management theme
Delta As Place
Environmental Conditions
Flood Risk And Land Use Management
Governance
Habitat Management
Invasive / Non-native Species Management
Native Species Management
Water Quality
Water Supply Management
Science theme
Amphibians And Reptiles
Aquatic Vegetation
Biological Resource Use
Channelized Habitats
Climate Science
Environmental Conditions
Fish
Floodplain
Food Webs
Habitat Changes
Hydrologic Changes
Hydrology And Hydrodynamics
Invasive / Non-native Species
Invertebrates
Land Use And Human Activities
Landform And Natural Disturbance
Mammals
Modeling
Nutrients, Energy And Food Web
Riparian Habitats
Sediment
Social Impacts
Social Science
Species
Terrestrial Habitats
Tidal Wetlands
Traditional Knowledge
Vulnerability Assessment
Water Quality
Weather And Climate
Type
Core Monitoring
Status And Trend Monitoring
Synthesis
Targeted Foundational Research
Targeted Immediate Research
Unsure
Delta region
Cache Slough Complex
East Delta
Entire Delta
North Delta
South Delta
Suisun Marsh
Twitchell And Sherman Complex
West Delta
Yolo Bypass
Yolo Bypass And Cache Slough Complex
Status
Awarded / Initiating
Complete
In Progress / Ongoing
Advanced
Science function
Data Application / Analytics
Data Application – Data Analysis
Data Application – Information Management
Data Application – Modeling
Data Application – Science Communication / Knowledge Synthesis
Monitoring – Effectiveness
Monitoring – Implementation
Monitoring – Status And Trends
Planning And Guidance
Research
Management actions
Agricultural Production
Carbon Markets
Climate Change Mitigation
Creation Of Favorable Habitat Conditions For Native Species
Flood Control
Ghg Emissions
Groundwater Protection & Management
Habitat Protection / Enhancement / Restoration
Improving Methods And/or Infrastructure For Science And Monitoring
Invasive Species Control And Management
Land Use Designation
Methylmercury Tmdl
Natural Environmental Flows
Pathways Of Introduction Of Invasives
Pollution Control
Population Enhancement Of Listed Species
Predation
Salinity Gate Management
Sea-level Rise Accommodation
Subsidence Reversal
Wastewater Management
Water Conveyance / Infrastructure
Water Demand
Water Operations
Water Storage
Wetland Resilience
Wetlands
Science topics
Above-highwater Refugia
Agriculture
Air Temperature
Algae
Ammonia
Amphibians And Reptiles
Aquatic Vegetation
Arsenic
Atmosphere
Backwater
Bedload
Benthic
Benthos
Bioaccumulation
Biosentinels
Birds
Bivalve
Brazilian Waterweed
Cadmium
California Tiger Salamander
Carbon
Carbon Storage
Chemistry
Chinook Salmon
Chlorophyll A / B
Climate Change
Conductivity
Constituent Of Emerging Concern Cec
Copper
Corbicula/potamocorbula
Crustaceans
Cyanobacteria
Delta Islands
Delta Smelt
Deposition
Detritus
Direction
Dissolved Oxygen
Docks And Ports
Dredging
Drought
Emergent Macrophytes
Endangered Species
Endocrine Disruptors
Energy And Mines
Environmental Drivers
Epiphytic Algae
Erosion
Estuaries
Evaporation / Evapotranspiration
Extreme Heat
Extreme Storms
Fecal Coliform / E. Coli
Fish
Fishing
Flame Retardants
Floating Aquatic Vegetation
Flood
Flows
Flushing Rates
Food Webs
Forest Harvesting
Forests
Fungicides
Giant Garter Snake
Giant Reed
Green Sturgeon
Greenhouse Gas Ghg
Groundwater
Gulls
Habitat
Habitat Restoration
Harmful Algal Blooms Hab
Herbicides
Hg And Methyl Mercury
Historical Ecology
Hunting
Hydrocarbons / Polycyclic Aromatic Hydrocarbons Pah
Insecticides
Insects
Intertidal / Transition Zones
Invasive / Non Native Species
Invertebrates
Jellyfish
Land Elevation
Landscape Change
Landscape Metrics
Lead
Levees
Light
Longfin Smelt
Main Channels
Mammals
Managed Ponds
Marsh Wildlife
Methylmercury
Microplastics
Mollusks
Mudflats
Mysis
Nitrogen
Nitrogen / Ammonia
Non-forested Vegetation
Non-resident / Overwintering Birds
Nutria
Nutrients
Open Water
Other Discharge Contaminants
Other Species
Other Zooplankton
Outflow
Pacific Flyway
Pelagic Fish
Pesticides
Ph
Phosphorous
Phragmites
Phytoplankton
Polychlorinated Biphenyl Pcb
Precipitation
Predation
Primary Production
Rail Lines
Recreation & Tourism
Remote Sensing
Residence Time
Resilience
Restoration
Restoration Planning
Riparian Wildlife
Roads And Bridges
Rodenticides
Sacramento Splittail
Salinity
Salmon Migration
Salmon Rearing
Salt Marsh Harvest Mouse
Saltwater / Freshwater Marshes
Sav/fav
Sea Level Rise
Seasonally Flooded
Sediments
Seismicity
Selenium
Shorebirds
Sloughs
Snowpack / Snow Water Equivalent Swe
Socio-economic Drivers
Soil
Solar Irradiance
Spongeplant
Stage
Steelhead Trout
Stormwater Runoff / Drainage
Striped Bass
Sturgeon
Submerged Aquatic Vegetation
Subsidence
Surface Water / Flow
Suspended Sediment
Temperature
Terrestrial Wildlife
Tidal Wetlands
Tides
Toxicity
Turbidity
Urban Development
Velocity
Vessels And Shipping Channels
Wastewater Discharge
Water
Water Conveyance / Infrastructure
Water Hyacinth
Water Intakes, Fish Screens & Passage
Water Management
Water Operations / Exports
Water Storage
Water Temperature
Water Use / Demand
Waterfowl
Waves
Wetland Mapping
Wetlands
White Sturgeon
Wildfire
Wind
Yellow Star Thistle
Zinc
Zooplankton
Science action area
1a. Establish Publicly Accessible Repositories, Interactive Platforms, And Protocols For Sharing Information, Products, And Tools Associated With Monitoring And Modeling Efforts, In Support Of Forecast And Scenario Development, Timely Decision-making, And
1b. Develop Tools To Assist Adaptive Management In The Delta
1c. Identify And Implement Large-scale Experiments That Can Address Uncertainties In The Outcomes Of Management Actions For Water Supply, Ecosystem Function, And Socioeconomic Conditions In The Delta.
2a. Evaluate And Update Monitoring Programs To Ensure Their Ability To Track And Inform The Management Of Climate Change Impacts, Emerging Stressors, And Changes In Species Distributions.
2b: Identify And Prioritize Important Data Sources That Should Be Interconnected To Promote Collaboration And Provide The Technology Necessary To Easily Access This Information
3a. Conduct Studies To Inform Restoration And Approaches To Protecting Human Communities That Are Resilient To Interannual Hydrologic Variation And Climate Change Impacts.
3b. Develop Integrated Frameworks, Data Visualization Tools, And Models Of The Delta Social-ecological System That Evaluate The Distribution Of Environmental Benefits And Burdens Of Management Actions Alongside Anticipated Climate Change Impacts.
4a. Use Multi-method Approaches (e.g., Surveys, Interviews, Oral Histories, And/or Observations) To Develop An Understanding Of How Human Communities’ Values, And Uses Of Cultural, Recreational, Agricultural, And Natural Resources Vary Across Geography, D
4b. Synthesize Existing Data And Collaboratively Develop Additional Long-term Data Collection And Monitoring Strategies To Address Knowledge Gaps On Human Communities Within The Delta And Those Reliant On The Delta, With The Goal Of Tracking And Modeling
4c. Measure And Evaluate The Effects Of Using Co-production Or Community Science Approaches (in Management And Planning Processes) On Communities' Perceptions Of Governance And On Institutional Outcomes, Such As Implementation Or Innovation.
4c: Understand Mechanisms For Observed Relationships Between Flows And Aquatic Species
5a: Advance Integrated Modeling Through Efforts Such As An Open Delta Collaboratory (physical Or Virtual) That Promotes The Use Of Models In Guiding Policy.
5b. Identify Thresholds In The Survival And Health Of Managed Fish And Wildlife Species With Respect To Environmental Variables (e.g., Flow, Temperature, Dissolved Oxygen) And Location-specific Survival Probabilities To Develop Strategies That Will Suppor
6a. Evaluate How Climate Change, Sea Level Rise, And More Frequent Extremes Will Impact Habitats, Water Supply, Water Quality, Sediment Supply, Long-term Species Persistence, Primary Productivity, And Food Webs.
6e. Predict And Test How Water Allocation And Supply Decisions, And Ecological Flow Scenarios Should Change Under Projected Climate Change To Maintain Habitat Conditions, Access Of Target Species To Critical Habitat, And Interactions Among Native And Inva
N/a (project Initiated Prior To 2017)
Saa Action Area 1 (2017-2021): Invest In Assessing The Human Dimensions Of Natural Resource Management Decisions
Saa Action Area 2 (2017-2021): Capitalize On Existing Data Through Increasing Science Synthesis
Saa Action Area 3 (2017-2021): Develop Tools And Methods To Support And Evaluate Habitat Restoration
Saa Action Area 4 (2017-2021): Improve Understanding Of Interactions Between Stressors And Managed Species And Their Communities
Saa Action Area 5 (2017-2021): Modernize Monitoring, Data Management, And Modeling
Saa Need 1 (2022-2026): Improve Coordination And Integration Of Large-scale Experiments, Data Collection, And Evaluation Across Scales And Institutions
Saa Need 2 (2022-2026): Enhance Monitoring And Model Interoperability, Integration, And Forecasting.
Saa Need 3 (2022-2026): Expand Multi-benefit Approaches To Managing The Delta As A Social-ecological System
Saa Need 4 (2022-2026): Build And Integrate Knowledge On Social Processes And Human Behavior To Support Effective And Equitable Management
Saa Need 5 (2022-2026): Acquire New Knowledge And Synthesize Existing Knowledge Of Interacting Stressors To Support Species Recovery
Saa Need 6 (2022-2026): Assess And Anticipate Climate Change Impacts To Support Successful Adaptation Strategies
Unspecified
Start year
End year
Organizations and funding programs
Lead implementing organization
Audubon Canyon Ranch
CALFED Bay-Delta Program
California Department of Conservation [DOC]
California Department of Fish and Wildlife [CDFW]
California Department of Forestry and Fire Protection [CALFIRE]
California Department of Parks and Recreation [PARKS]
California Department of Pesticide Regulation [DPR]
California Department of Transportation [Caltrans]
California Department of Water Resource [DWR]
California Energy Commission [CEC]
California Rice Commission
California Sea Grant
California State Coastal Conservancy
California State University - East Bay
California State University Long Beach
California State University Maritime Academy
California State University [CSU]
California State Water Resources Control Board [SWRCB]
California Water Board - Central Valley Region
Central Valley Regional Water Quality Control Board [Central Valley RWQCB]
Coastal Conservation and Research, Inc.
Contra Costa Water District [CCWD]
Cornell University - Lab of Ornithology
Cramer Fish Sciences
Delta Regional Monitoring Program [RMP]
Delta Stewardship Council
Delta Stewardship Council - Delta Science Program
DigitalGlobe
East Bay Municipal Utilities District
European Space Agency
Goddard Space Flight Center
Hydrofocus Inc.
Land IQ
MarineTraffic
Metropolitan Water District of Southern California
Michigan State University
National Aeronautics and Space Administration [NASA]
National Agricultural Statistics Service [NASS]
National Audubon Society
National Marine Fisheries Service [NMFS]
National Oceanic and Atmospheric Administration [NOAA]
Oregon State University
Pacific Flyway Council
Pacific States Marine Fisheries Commission [PSMFC]
Pardee RAND Graduate School
Point Blue Conservation Science
Port of Stockton Board of Commissioners
Portland State University
R2 Resource Consultants Inc.
Sacramento-San Joaquin Delta Conservancy
San Diego State University
San Francisco Estuary Institute [SFEI]
San Francisco State University [SFSU]
San Francisco State University, Estuary & Ocean Science Center
San Joaquin County and Delta Water Quality Coalition [SJCDWQC]
Santa Clara University
Sierra Streams Institute
Southern California Stormwater Monitoring Coalition [SMC]
Stanford University
State Water Contractors [SWC]
Suisun Resource Conservation District
The Institute for Bird Populations
U.S. Army Corps of Engineers [USACE]
U.S. Bureau of Reclamation [USBR]
U.S. Department of Agriculture [USDA]
U.S. Department of Energy - Office of Biological and Environmental Research [DOE-BER]
U.S. Department of Transportation [DoT]
U.S. Environmental Protection Agency [USEPA]
U.S. Fish and Wildlife Service [USFWS]
U.S. Geological Survey [USGS]
UNAVCO
University of California
University of California - Berkeley [UC Berkeley]
University of California - Davis [UC Davis]
University of California - Los Angeles [UCLA]
University of California - Merced [UC Merced]
University of California - Riverside [UC Riverside]
University of California - San Diego [UCSD]
University of California - Santa Barbara [UCSB]
University of California - Santa Cruz [UCSC]
University of Maryland - Center for Environmental Science
University of Vermont, USGS Vermont Cooperative Fish and Wildlife Research Unit
University of Washington [UW]
Virginia Institute of Marine Science
Westside San Joaquin River Watershed Coalition
Woodland-Davis Clean Water Agency
Partner implementing organizations
Agricultural Coalitions: Landowners membership fees
Anchor QEA
Bachand and Associates
Bureau of Transportation Statistics [BTS]
California Cooperative Anadromous Fish and Habitat Data Program [CalFish]
California Department of Conservation [DOC]
California Department of Fish and Wildlife [CDFW]
California Department of Food and Agriculture [CDFA]
California Department of Forestry and Fire Protection [CALFIRE]
California Department of Parks and Recreation [PARKS]
California Department of Pesticide Regulation [DPR]
California Department of Public Health [CDPH]
California Department of Water Resource [DWR]
California Environmental Protection Agency [CalEPA]
California Heritage: Indigenous Research Project
California Institute of Technology Jet Propulsion Laboratory
California Institute of Technology [Caltech]
California Landscape Conservation Cooperative [CALCC]
California Natural Resources Agency [CNRA]
California Office of Environmental Health Hazard Assessment [OEHHA]
California State Board of Equalization
California State Coastal Conservancy
California State Lands Commission [CSLC]
California State University [CSU]
California State Water Resources Control Board [SWRCB]
Central Valley Flood Protection Board [CVFPB]
Central Valley Joint Venture
Central Washington University [CWU]
Chapman University
Collaborative Adaptive Management Team [CAMT]
Conservation Farms and Ranches
Cramer Fish Sciences
Delta Conservancy
Delta Stewardship Council
Delta Stewardship Council - Delta Science Program
Department of Fish and Game [DFG]
Desert Research Institute [DRI]
Ducks Unlimited
East Bay Municipal Utilities District
EcoMetric Consulting
Environmental Science Associates
Fishery Foundation of California
FloodSAFE Environmental Stewardship and Statewide Resources Office [FESSRO]
Hydrofocus Inc.
ICF International Inc.
International Institute for Applied Systems Analysis
Interstate Council on Water Policy [ICWP]
Koy'o Land Conservancy
Land IQ
Lawrence Berkeley National Laboratory [LBNL]
Lawrence Livermore National Laboratory
Maine Prairie High School
Manomet Inc.
Metropolitan Water District of Southern California
Michigan State University
Moss Landing Marine Laboratories [MLML]
National Aeronautics and Space Administration [NASA]
National Agricultural Statistics Service [NASS]
National Agriculture Imagery Program [NAIP]
National Audubon Society
National Marine Fisheries Service [NMFS]
National Oceanic and Atmospheric Administration [NOAA]
National Science Foundation [NSF]
National Wetlands Inventory - Many Supporting Organizations
NatureServe
Northwest Alliance for Computational Science and Engineering - PRISM Climate Group
Pacific Northwest National Laboratory
Pacific States Marine Fisheries Commission [PSMFC]
Point Blue Conservation Science
Purdue University
RAND Corporation
Resource Management Associates [RMA]
Restore the Delta
Rohde Environmental Consulting, LLC
SUNY College of Envir. Science & Forestry
Sacramento Regional County Sanitation District [Regional San]
Sacramento-San Joaquin Delta Conservancy
San Francisco Bay Bird Observatory
San Francisco Bay Conservation & Development Commission [BCDC]
San Francisco Estuary Institute [SFEI]
San Francisco State University [SFSU]
San Joaquin County Resource Conservation District
San Joaquin Valley Drainage Authority
Santa Clara University
Shingle Springs Band of Miwok Indians
Solano Land Trust
South Yuba River Citizens League
Southern California Coastal Water Research Project [SCCWRP]
Southern California Stormwater Monitoring Coalition [SMC]
Southwest Climate Adaptation Science Center
State Water Contractors [SWC]
Suisun Resource Conservation District
Texas A&M
The Nature Conservancy
U.S. Army Corps of Engineers [USACE]
U.S. Bureau of Indian Affairs [BIA]
U.S. Bureau of Land Management [BLM]
U.S. Bureau of Reclamation [USBR]
U.S. Census Bureau
U.S. Department of Agriculture [USDA]
U.S. Department of Defense [DoD]
U.S. Department of Energy [DOE]
U.S. Energy Information Administration [EIA]
U.S. Environmental Protection Agency [USEPA]
U.S. Fish and Wildlife Service [USFWS]
U.S. Forestry Service [USFS]
U.S. Geological Survey [USGS]
U.S. National Park Service [NPS]
University of British Columbia [UBC]
University of California - Berkeley [UC Berkeley]
University of California - Davis [UC Davis]
University of California - Irvine [UCI]
University of California - Merced [UC Merced]
University of California - San Diego [UCSD]
University of California - Santa Barbara [UCSB]
University of California - Santa Cruz [UCSC]
University of Kansas
University of South Carolina
University of Washington [UW]
Utah State University
Washington Department of Fish and Wildlife
Western Ecosystems Technology Inc.
Western States Water Council [WSWC]
Wolf Creek Community Alliance
Yuba River Management Team
Primary funding organizations
CALFED Bay-Delta Program
California Department of Fish and Wildlife [CDFW]
California Department of Water Resource [DWR]
Delta Regional Monitoring Program [RMP]
Delta Stewardship Council
Interagency Ecological Program [IEP]
State Water Contractors [SWC]
U.S. Bureau of Reclamation [USBR]
U.S. Environmental Protection Agency [USEPA]
U.S. Fish and Wildlife Service [USFWS]
U.S. Geological Survey [USGS]
Funding programs
California Department of Fish and Wildlife CDFW - Prop 1
Delta Regional Monitoring Program RMP
Delta Science Program - Delta Science Solicitations
Delta Science Program - Operation Baseline
Delta Science Program and California Sea Grant - Delta Science Fellows Program
Interagency Ecological Program IEP
Funding Sources
CalFED Bay Delta Fund CBDF
California Department of Fish and Wildlife CDFW - General Fund
California Department of Fish and Wildlife CDFW - Prop 1
Delta Stewardship Council - General Fund
Proposition 50
Proposition 84
Wetland Program Development Grant
Submit
Records
Currently, sorted by last updated
Last updated
Title
Download
Title
Operation Baseline Project 2A1: USGS Pilot Studies
Lead
U.S. Geological Survey [USGS]
Description
Two pilot studies were funded to establish a baseline in open water and shallow wetland habitats prior to the WWTP upgrade. Study 1: Nutrient concentrations, transformation rates, and links to the foodweb. Study 2: Method to improve monitoring using fixed stations coupled with high-speed boat measurements
Science topics
Algae
,
Floating aquatic vegetation
,
Food webs
,
Nitrogen / ammonia
,
Open water
,
Other discharge contaminants
,
Phytoplankton
,
Submerged aquatic vegetation
,
Wastewater discharge
,
Water operations / exports
,
Wetlands
,
Zooplankton
Updated
December 14, 2022
Title
Operation Baseline Project 2A2: USGS Pilot Studies - Isotopes
Lead
U.S. Geological Survey [USGS]
Description
Evaluate the usefulness of stable isotopes to trace nutrients form effluent water
Science topics
Algae
,
Floating aquatic vegetation
,
Food webs
,
Nitrogen / ammonia
,
Open water
,
Other discharge contaminants
,
Phytoplankton
,
Submerged aquatic vegetation
,
Wastewater discharge
,
Water operations / exports
,
Wetlands
,
Zooplankton
Updated
December 14, 2022
Title
Quantifying Factors Affecting Migration Routing and Survival of Juvenile Late-Fall Chinook Salmon in the Sacramento-San Joaquin River Delta
Lead
U.S. Geological Survey [USGS]
Description
Juvenile Chinook salmon emigrating from natal tributaries of the Sacramento River must negotiate the Sacramento-San Joaquin River Delta where they disperse among the Delta's complex channel network. Natural processes and water management actions affect the fraction of the population using different migration routes through the Delta and survival within those routes, but quantifying these relationships has proven difficult. Since 2006, acoustic telemetry techniques have been used to quantify both movement among migration routes and survival within routes, providing the first insights into how route-specific survival contributes to population-level survival in the Delta. In this project, we propose to use existing acoustic telemetry data from multiple sources to 1) Quantify factors affecting migration routing of juvenile salmon emigrating from the Sacramento River, 2) Quantify factors affecting survival of juvenile salmon within specific migration routes, and 3) Simulate population-level survival through the Delta under a limited number of historical and operational scenarios. Collating telemetry data from multiple sources over numerous years offers a unique opportunity to identify important relationships that might otherwise be difficult to detect for any particular study in a given year. Quantifying such relationships is critical to informing resource management that seeks to balance use of water resources with recovery of endangered salmon populations.
Science topics
Chinook Salmon
Updated
April 29, 2022
Title
CASCaDE II: Computational Asessments of Scenarios of Change for the Delta Ecosystem
Lead
U.S. Geological Survey [USGS]
Description
This proposal builds upon an existing model-based effort to develop a holistic view of the Bay-Delta-River-Watershed system. CASCaDE I developed a set of linked models to assess Delta ecosystem response to climate change. In CASCaDE II, we propose to refine and extend those modeling capabilities to assess Delta ecosystem response to changes in climate and physical configuration. With a new state-of-the-art hydrodynamic and sediment model at its core, CASCaDE II will link models of climate, hydrology, hydrodynamics, sediment, geomorphology, phytoplankton, bivalves, contaminants, marsh accretion, and fish. Our goals are to apply these linked models to 1) better understand Delta ecosystem function, 2) assess possible futures of the Delta under scenarios of climate and structural change, and 3) provide science-based information to support the DSC in its co-equal goals of water supply and ecosystem protection. The tools developed will provide an objective basis for anticipating and diagnosing Delta ecosystem responses to planned and unplanned changes. Experiments using the linked models are designed to address questions such as: How will climate change, together with new conveyance structures or increased flooded island habitat, alter water flow and drinking water quality? With projected changes in residence time, turbidity, temperature, and salinity, how will primary productivity, invasive bivalves, marsh processes, contaminant dynamics, and fish populations respond?
Science topics
None specified
Updated
April 29, 2022
Title
Quantifying the contribution of tidal flow variations to survival of juvenile Chinook salmon
Lead
U.S. Geological Survey [USGS]
Description
The purpose of this project is to quantify how tides in the Delta influence survival of juvenile salmon. Juvenile salmon survival increases when there is more flow and the river is less tidally influenced. We hypothesize that the increase in survival is because of reduced travel times causing less exposure to predators. This project will test this hypothesis using multiple models including ones that can predict how management actions that modify tidal patterns affect juvenile salmon survival.
Science topics
Chinook Salmon
,
Salmon migration
,
Surface water / flow
,
Tides
,
Water management
Updated
June 17, 2024
Title
Assessing Sediment Nutrient Storage and Release in the Delta: Linking Benthic Nutrient Cycling to Restoration, Aquatic Vegetation, Phytoplankton Productivity, and Harmful Algal Blooms
Lead
U.S. Geological Survey [USGS]
Description
Nutrients in sediment play a large role in influencing food webs, harmful algal blooms, aquatic vegetation, and drinking water quality. This study will investigate the amount, types, and dynamics of nutrients in Delta sediments. It will also examine sediment microbial communities that mediate these processes. Results of this study will help determine how the planned reduction in nutrient inputs to the Delta will effect sediment nutrients and microbial communities following the upgrade of the Sacramento Regional County Sanitation District’s wastewater treatment plant. Data will also inform how wetland restoration and invasive aquatic vegetation influence sediment nutrients and microbial communities. These data will contribute to improving computer models that inform large-scale nutrient management actions.
Science topics
Aquatic vegetation
,
Benthic
,
Cyanobacteria
,
Harmful algal blooms HAB
,
Nitrogen
,
Nitrogen / ammonia
,
Nutrients
,
Phytoplankton
,
Sediments
Updated
May 14, 2024
Title
CASCaDE: Computational Asessments of Scenarios of Change for the Delta Ecosystem
Lead
U.S. Geological Survey [USGS]
Description
Agencies of the CALFED Bay-Delta Authority (CBDA) face tough decisions as they search for strategies to meet their programmatic goals of stabilizing water supplies in California, providing safe drinking water to a growing population, and sustaining diverse populations of native species and their supporting ecosystem functions. The challenge of finding balanced solutions to these goals is daunting because of the enormous complexity of the San Francisco Bay-Delta system and its tributary rivers and their watersheds. The challenge grows as we consider the additional layer of complexity imposed by the certainty that all the key forces that drive dynamics of this ecosystem (climate, hydrology, water management, land use, sea level) will change significantly in future decades. This proposal describes a model-based approach for developing a long view of the Bay-Delta-River-Watershed system. The long view will be developed through simulations with linked models to project changes under a range of plausible scenarios of global warming, hydrologic responses, land-use change, reconfigurations of within-Delta habitats, and sea level rise. Our goals are to develop and apply a model-based approach of ecological forecasting to project future states of the Delta ecosystem under prescribed scenarios of change, and to communicate the outcomes of those scenarios to resource managers facing the daunting challenge of meeting CBDP goals in a continually changing world.
Science topics
None specified
Updated
November 18, 2022
Title
Predation Dynamics Across Reach-Specific Gradients in Juvenile Salmon Survival
Lead
U.S. Geological Survey [USGS]
Description
Description The overarching goal of this project is to determine if predation by piscivorous fishes is an important explanatory driver of survival of juvenile Chinook Salmon emigrating through the north Delta. To achieve this goal, we seek to determine if variation in reach-specific characteristics of predation dynamics covary with survival of acoustictagged juvenile Chinook Salmon collected during the study period. This will be accomplished by comparing reach-specific characteristics of the piscivore community and its observed and modeled consumption of juvenile Chinook Salmon across a range of environmental conditions. Need This is not a mandated study but it addresses an important research need. Objectives • How does the piscivore community (species composition, size structure, and abundance) vary across specific migratory pathways (river reaches) in the North Delta? • To what extent do environmental conditions (e.g., water temperature, turbidity, and discharge) control the consumption of juvenile Chinook Salmon? • Do characteristics of the predator community explain variation in survival of acoustic tagged salmon collected during the study period?
Science topics
Predation
Updated
April 29, 2022
Title
North American Breeding Bird Survey [BBS]
Lead
U.S. Geological Survey [USGS]
Description
The North American Breeding Bird Survey (BBS) is the primary source for critical quantitative data to evaluate the status of continental bird species, keeping common birds common and helping fuel a $75 billion wildlife watching industry.
Science topics
Mudflats
,
Intertidal / transition zones
,
Above-highwater refugia
,
Main channels
,
Sloughs
,
Backwater
,
Seasonally flooded
,
Open water
,
Managed ponds
,
Riparian wildlife
,
Forests
,
Non-forested vegetation
,
Delta islands
,
Pacific flyway
,
Waterfowl
,
Shorebirds
,
Gulls
,
Saltwater / freshwater marshes
,
Habitat
,
Birds
,
Non-resident / overwintering birds
Updated
April 29, 2022
Title
Water Quality Data for California
Lead
U.S. Geological Survey [USGS]
Description
The USGS collects and analyzes chemical, physical, and biological properties of water, sediment and tissue samples from across the Nation. The Water Data for the Nation discrete sample data base is a compilation of over 4.4 million historical water quality analyses in the USGS district data bases through September 2005. The discrete sample data is a large and complex set of data that has been collected by a variety of projects ranging from national programs to studies in small watersheds.
Science topics
Water temperature
,
Dissolved oxygen
,
pH
,
Conductivity
Updated
April 29, 2022
Title
San Francisco Bay Bathymetry
Lead
U.S. Geological Survey [USGS]
Description
USGS has conducted bathymetric analyses in San Francisco Bay, Suisun Bay, and the Delta intermittently since 1867 based on bathymetry data primarily collected by NOAA"s National Ocean Service (NOS) (formerly the United States Coast and Geodetic Survey (USCGS)). Since the days of hydraulic gold mining, sedimentation in San Francisco Bay has changed drastically. From the 1850's until at least the late 1800's, debris from hydraulic mining in the Sierra Nevada filled the Bay. As hydraulic mining practices ceased, the amount of sediment deposited decreased. In the latter half of the 20th century an increase in the implementation of flood control and water distribution projects in the Central Valley caused the Bay to be erosional due to the reduction of the frequency and duration of peak flow conditions, which in turn decreased sediment supply to the Bay. They have used this information to locate deposits of sediment-associated contaminants, restore wetland areas, and to provide the observable linkage between anthropogenic modifications of the landscape—such as evolving land use practices, flood control, and water diversions—and natural forces of climate-driven river flow, sea level change, tides, and wind. In 1999, USGS assessed how sedimentation in the Suisun Bay has changed between 1867 and 1990 (see info sources). They have also worked collaboratively with DWR, using their more recent bathymetry data to produce a high-resolution DEM of the Delta region (see info sources). It is not clear whether USGS will continue their bathymetry surveys. The latest survey is from 2005, and took place in the South of San Francisco Bay (outside the Delta study area).
Science topics
Flood
,
Land elevation
,
Bedload
,
Deposition
,
Erosion
,
Main channels
,
Sloughs
,
Backwater
Updated
April 29, 2022
Title
Water Quality in the Nation's Stream and Rivers
Lead
U.S. Geological Survey [USGS]
Description
In 1991, Congress established the National Water-Quality Assessment (NAWQA) Project to address where, when, why, and how the Nation's water quality has changed, or is likely to change in the future, in response to human activities and natural factors. A prominent feature of NAWQA is the development of long-term consistent and comparable information on streams, rivers, ground water, and aquatic systems. The NAWQA Project is designed to answer these questions: 1. What is the current condition of our Nation's streams, rivers, and groundwater? 2. How are these conditions changing over time? 3. How do natural features and human activities affect these conditions, and where are those effects most pronounced? Under the National Water-Quality Assessment (NAWQA) project, there are several surface water and ecology studies, including the Regional Stream Quality Assessment (RQSA) (a baseline assessment of streams), and current conditions and long-term trends monitoring.
Science topics
Wastewater discharge
,
Nitrogen / ammonia
,
Phosphorous
,
Carbon
,
Chlorophyll A / B
,
Harmful algal blooms HAB
,
Suspended sediment
,
Chemistry
,
Toxicity
,
Salinity
,
Water temperature
,
Dissolved oxygen
,
pH
,
Turbidity
,
Hg and methyl mercury
,
Polychlorinated biphenyl PCB
,
Hydrocarbons / polycyclic aromatic hydrocarbons PAH
,
Flame retardants
,
Endocrine disruptors
,
Lead
,
Cadmium
,
Copper
,
Zinc
,
Arsenic
,
Selenium
,
Constituent of emerging concern CEC
,
Insecticides
,
Rodenticides
,
Herbicides
,
Fungicides
,
Microplastics
,
Other discharge contaminants
,
Main channels
,
Sloughs
,
Backwater
,
Benthos
,
Insects
,
Mollusks
,
Crustaceans
,
Fish
,
Invertebrates
Updated
April 29, 2022
Title
Groundwater Quality Trends Monitoring
Lead
U.S. Geological Survey [USGS]
Description
Scientists are characterizing groundwater quality in principal aquifers, the primary source of the Nation's groundwater used for drinking. Concentrations of inorganic constituents, such as arsenic and nitrate, and organic constituents, such as pesticides and volatile organic compounds, are compared to benchmarks established for the protection of human health. Users can access an online tool to see how concentrations of pesticides, nutrients, metals, and organic contaminants in groundwater are changing during decadal periods across the Nation, and see in real time how chemical properties of groundwater at some sites are fluctuating. Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey's National Water-Quality Assessment Project. Samples are collected in groups of 20-30 wells with similar characteristics called networks. About 1,500 of these wells in 67 networks were sampled about 10 years later between 2002-2012 (second sampling event) to evaluate decadal changes in groundwater quality. Between 2012 and 2016 (third sampling event), a subset of these networks has been sampled again, allowing additional results to be displayed on the web page: Decadal changes in groundwater quality. This is the third iteration of data added to the website, so this data release is referred to herein as Version 3.0. With the additional data, it is possible to evaluate changes in water quality between the 2nd and 3rd sampling event for 19 additional networks (35 total), changes in water quality between the 1st and 3rd sampling event for 15 additional networks (27 total), and changes across all 3 sampling events for 13 additional networks (27 total). A total of 78 networks have been sampled at least twice. Samples were obtained from monitoring wells, domestic-supply wells, and some public-supply wells before any treatment on the system.
Science topics
Groundwater
,
Nitrogen / ammonia
,
Salinity
,
Arsenic
,
Other discharge contaminants
Updated
April 29, 2022
Title
Groundwater Ambient Monitoring and Assessment Program [GAMA]
Lead
U.S. Geological Survey [USGS]
Description
The Groundwater Ambient Monitoring and Assessment (GAMA) Program is California's comprehensive groundwater quality monitoring program that was created by the State Water Resources Control Board (State Water Board) in 2000. It was later expanded by Assembly Bill 599 - the Groundwater Quality Monitoring Act of 2001. AB 599 required the State Water Board, in coordination with an Interagency Task Force (ITF) and Public Advisory Committee (PAC) to integrate existing monitoring programs and design new program elements as necessary, resulting in a publicly accepted plan to monitor and assess groundwater quality in basins that account for 95% of the state's groundwater use. The GAMA Program is based on interagency collaboration with the State and Regional Water Boards, Department of Water Resources, Department of Pesticide Regulations, U.S. Geological Survey, and Lawrence Livermore National Laboratory, and cooperation with local water agencies and well owners.
Science topics
Groundwater
,
Salinity
,
Hg and methyl mercury
,
Hydrocarbons / polycyclic aromatic hydrocarbons PAH
,
Flame retardants
,
Endocrine disruptors
,
Lead
,
Arsenic
,
Selenium
,
Constituent of emerging concern CEC
,
Nitrogen / ammonia
,
Other discharge contaminants
,
Conductivity
,
Habitat
,
Fecal coliform / E. coli
Updated
April 29, 2022
Title
Continuous Monitoring of Water Quality & Suspended-Sediment Transport [Bay-Delta]
Lead
U.S. Geological Survey [USGS]
Description
Our group at the USGS continuously monitors suspended-sediment concentration (SSC), turbidity, dissolved oxygen, temperature, salinity, and water level at many sites throughout the San Francisco Bay (Bay) and the Sacramento-San Joaquin Rivers Delta (Delta). Our work began in 1988 to explore the spatial and temporal variability of water quality and sediment transport and to provide decision makers, resource managers, and the public with the most up-to-date knowledge. Topics we study include water quality, sediment transport, water clarity, erosion and deposition, sediment-associated contaminants and habitat quality, wetland restoration, and sea level rise.
Science topics
Water operations / exports
,
Water storage
,
Water conveyance / infrastructure
,
Surface water / flow
,
Stage
,
Velocity
,
Suspended sediment
,
Bedload
,
Deposition
,
Erosion
,
Chemistry
,
Toxicity
,
Salinity
,
Water temperature
,
Dissolved oxygen
,
Turbidity
,
Other discharge contaminants
,
Intertidal / transition zones
,
Main channels
,
Sloughs
,
Open water
,
Riparian wildlife
,
Conductivity
,
Water use / demand
,
Water intakes, fish screens & passage
Updated
April 29, 2022
Title
Water Quality of San Francisco Bay
Lead
U.S. Geological Survey [USGS]
Description
This website provides information about the following components of water quality: salinity, temperature, suspended particulate matter, dissolved oxygen, light penetration, and chlorophyll concentration. These parameters are measured using a submersible instrument package called a CTD. This program complements the Interagency Ecological Program (IEP) for the San Francisco Bay/Delta Ecosystem.
Science topics
Solar irradiance
,
Chlorophyll A / B
,
Suspended sediment
,
Salinity
,
Water temperature
,
Dissolved oxygen
,
Other discharge contaminants
,
Main channels
Updated
April 29, 2022
Title
National Water Use Science Project [NWUSP]
Lead
U.S. Geological Survey [USGS]
Description
The USGS National Water Use Science Project (NWUSP), a component of the Water Availability and Use Science Program (WAUSP), facilitates the 5-year compilation of water use estimates for the United States as part of the National Water Census (NWC). The NWC, implemented as part of the SECURE (Science and Engineering to Comprehensively Understand and Responsibly Enhance) Water Act (Subtitle F of Public Law 111-11, the Omnibus Public Land Management Act), provides data and tools designed to support water managers in the accurate assessment of water availability at regional and national scales (https://water.usgs.gov/ watercensus/). Water managers across the United States require more complete, timely, and accurate water-availability information to support policy and decision-making, specifically, data associated with water withdrawals and consumptive use. Recognizing the limitations of current water-use data, the SECURE Water Act authorized a program that supports activities related to data collection and methods research and development at the State level. The USGS Water-Use Data and Research program (WUDR) will provide financial assistance through cooperative agreements with State water resource agencies to improve the availability, quality, compatibility, and delivery of water-use data that is collected or estimated by States. The Act requires that these State water use and availability datasets be integrated with appropriate datasets that are developed and/or maintained by the USGS.
Science topics
Surface water / flow
,
Groundwater
,
Water use / demand
Updated
April 29, 2022
Title
Berkeley Seismology Lab Geophysical Networks
Lead
U.S. Geological Survey [USGS]
Description
Together with the USGS Menlo Park, the Berkeley Seismological Laboratory reports earthquake information within a few minutes of occurrence. The BSL operates several different networks and has expanded into a broader range of geophysical monitoring: BARD, BDSN, BBN, and HRSN. BARD is a network of 33 continuously operating Global Positioning System receivers in Northern California. The primary goal of the network is to monitor crustal deformation across the Pacific-North America plate boundary and in the San Francisco Bay Area for earthquake hazard reduction studies and rapid earthquake emergency response assessment. The Berkeley Digital Seismic Network (BDSN) is a regional network of very broadband and strong motion seismic stations spanning Northern California and linked to UC Berkeley through continuous telemetry. The network is designed to monitor regional seismic activity as well as to provide high quality data for research in regional and global broadband seismology. The network currently consists of 40 stations, including an ocean-bottom seismometer in Monterey Bay (MOBB). The BSL operate a number of stations in the Bay Area with seismic and other geophysical sensors in boreholes. They are tools for observing tiny earthquakes and other deformation signals that may hint of incipient seismic movements. The High-Resolution Seismic Network is an array of borehole instrumentation deployed in the Parkfield area, with the goal of monitoring microseismicity on the San Andreas fault.
Science topics
Land elevation
,
Subsidence
,
Seismicity
,
Forests
,
Non-forested vegetation
,
Delta islands
Updated
April 29, 2022
Title
Regional Monitoring Program for Water Quality in San Francisco Bay
Lead
U.S. Geological Survey [USGS]
Description
The Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) is SFEI's largest program. It provides the information that regulators and decision-makers need to manage the Bay effectively. The RMP is an innovative collaborative effort between SFEI, the Regional Water Quality Control Board, and the regulated discharger community.
Science topics
Stage
,
Solar irradiance
,
Nitrogen / ammonia
,
Phosphorous
,
Carbon
,
Chlorophyll A / B
,
Suspended sediment
,
Salinity
,
Water temperature
,
Dissolved oxygen
,
Turbidity
,
Hg and methyl mercury
,
Copper
,
Selenium
,
Other discharge contaminants
,
Main channels
,
Conductivity
,
Habitat
Updated
April 29, 2022
Title
National Strong Motion Project [NSMP]
Lead
U.S. Geological Survey [USGS]
Description
The USGS National Strong-Motion Project (formerly titled the National Strong Motion Program) has the primary Federal responsibility for acquiring strong motion records of significant earthquakes in the United States recorded by sensors placed in the ground and in man-made structures. Currently the NSMP operates and maintains strong-motion instruments at more than 660 ground, free-field and reference sites, and more than 3200 channels of data from about 180 structural arrays. When a significant earthquake occurs, the NSMP automatically retrieves strong motion recordings from its instrumentation as well as from more than 2000 other instruments operated throughout the US by federal, state, and local agencies, private companies, and academic institutions that participate in the Advanced National Seismic System (ANSS). The NSMP rapidly processes these recordings according to COSMOS standards and archives the products at the Center for Engineering Strong Motion Data.
Science topics
Land elevation
,
Subsidence
,
Sea level rise
,
Seismicity
,
Forests
,
Non-forested vegetation
,
Delta islands
,
Pacific flyway
Updated
April 29, 2022
Title
Streamflow Monitoring
Lead
U.S. Geological Survey [USGS]
Description
The USGS works in partnership with more than 1,400 Federal, regional, State, Tribal, and local agencies or organizations to maintain and manage a multipurpose network of streamgages that monitor streamflow and (or) water level. Approximately 8,200 of the more than 10,000 USGS streamgages in the network continuously monitor streamflow year-round and are collectively referred to as the National 'Streamflow' Network (NSN). Approximately 40% of the NSN is made up of Federal Priority Streamgages (FPS), which are considered critical for long-term tracking and modeling/forecasting to ensure that Federal water priorities and responsibilities can be met. Such priorities and responsibilities include forecasting hydrologic events (floods and droughts);managing interstate agreements, compacts, court decrees, and other legal obligations;and tracking streamflow in major river basins and across borders.
Science topics
Water operations / exports
,
Water storage
,
Water conveyance / infrastructure
,
Wastewater discharge
,
Surface water / flow
,
Stage
,
Velocity
,
Direction
,
Flood
,
Main channels
,
Sloughs
,
Backwater
,
Stormwater runoff / drainage
,
Water use / demand
Updated
April 29, 2022
Title
Continuous Flow and Water Quality Monitoring Network in the Sacramento-San Joaquin Delta
Lead
U.S. Geological Survey [USGS]
Description
This project envisions the continuation, expansion, and further integration of high frequency monitoring for flow, water quality (including chlorophyll and nutrients), sediment, as well as biological responses at key locations in the Delta and Suisun Bay. The physical properties monitored by the fixed-station network are the primary drivers of the habitat conditions and biological responses that management actions hope to achieve. Nutrient dynamics are explicitly measured at select stations to improve our understanding of how physical dynamics, water quality and landscape features shape the base of Delta food webs. These data will provide information about drivers linked to food quantity and quality as well as potential toxins production by harmful algae. Suspended-sediment monitoring provides an understanding of the inputs and internal exchanges between regions, locations of sources and sinks, and provides insight into the underlying cause of turbidity variability in the study area. Suspended-sediment measurements gage the availability of suspended sediment for existing marshes and for proposed large-scale marsh restoration efforts in the Delta. There are a total of 5 sub-tasks in this project: • Task 1: Hydrodynamics Team – Fixed Station Network Operation and Maintenance • Task 2: BioGeoChemistry Team -- Fixed Station Network Operation and Maintenance • Task 3: Delta Sediment Team – Fixed Station Network Operation and Maintenance • Task 4: Bay Sediment Team – Fixed Station Network Operation and Maintenance • Task 5: Project Management
Science topics
Chlorophyll A / B
,
Conductivity
,
Dissolved oxygen
,
Flows
,
Nutrients
,
pH
,
Phytoplankton
,
Sediments
,
Stage
,
Surface water / flow
,
Tides
,
Turbidity
,
Velocity
,
Water operations / exports
,
Water temperature
Updated
October 21, 2024
Title
High-Frequency Monitoring of Delta Island Drainage Waters to inform carbon budgets and contaminant export
Lead
University of California - Santa Cruz [UCSC]
Description
This Proposition 1 funded study aims to use high-frequency measurements and paired grab samples to document water quality and carbon exports in relation to land use change on Delta Islands. The project involves monitoring one station on Twitchell Island and two on Staten Island.
Science topics
Landscape change
Updated
August 25, 2024