The Puget Sound basin includes at least thirteen major river systems and numerous tributaries, which can be classified as rainfall-dominated, snowmelt-dominated, or transitional (Ross 2006, Cayan 1996, Bach 2002). Rainfall-dominated rivers exhibit peak flows during winter; snowmelt-dominated rivers have peak flows in late spring and late fall with low winter flows. Transitional rivers exhibit less pronounced high or low flows in the late fall and late spring, and winter. Hydrologic flow patterns are important both ecologically and in terms of consumptive resources. Alteration of historic flow patterns may cause ecological harm and supply disruptions (Wiley and Palmer 2008, Poff et al. 1997). Hydrologic flow regimes in Puget Sound rivers have been altered through the construction of dams for flood control or power generation, or by changes in land cover and climate. Flows in the Skagit, Nisqually, Green, Skokomish, and Cedar rivers are regulated by dams (Puget Sound Partnership 2009c).
Are low flows changing in Puget Sound streams?
A 2018 report from the University of Washington Puget Sound Institute analyzes trends in summer stream flows and finds they are declining, but not necessarily because of abstractions by humans.
Taking the temperature of salmon
Warming waters threaten the recovery of salmon in Puget Sound. New findings about stream temperature could help salmon survive the threats of climate change.
Circulation in Puget Sound (infographic)
Estuaries around the world including Puget Sound perform an amazing feat of continuous water mixing called estuarine exchange flow.
Puget Sound Marine Waters 2021 Overview
Each year, the Puget Sound Ecosystem Monitoring Program (PSEMP) releases a Puget Sound Marine Waters Overview, a report combining a wealth of data from numerous comprehensive environmental monitoring programs. The latest report provides an overview of marine conditions in 2021 and represents the collective effort of 76 contributors from federal, tribal, state, and local agencies, academia, nonprofits, and private and volunteer groups.
Eyes Over Puget Sound: A Decade in Review
The Washington State Department of Ecology has reached one hundred Eyes Over Puget Sound reports. Since 2011, Ecology has provided aerial observations and documented visible features at the surface of Puget Sound from a floatplane. This unique perspective from the air featured Puget Sound's natural beauty, its oceanographic complexity, and its ecological treasures. It also raised awareness of the challenges that the water body is facing today. Our image-rich documentation of known eutrophication indicators ranges from algal and Noctiluca blooms to macroalgae, jellyfish, and human stressors. It provides a visually captivating time-capsule of issues facing Puget Sound. The report is rich in educational and outreach material, inspired numerous news reports, and drew academic and public attention during the period of marine heat wave of the north Pacific, The Blob.
What drives Puget Sound's 'underwater Amazon'?
In a new series we are calling Ask a Scientist we interview local researchers to get their thoughts on some of the important but lesser-known scientific facts about the Puget Sound ecosystem. Today, we speak with University of Washington oceanographer Parker MacCready about Puget Sound’s “underwater Amazon” and why it has profound implications for Puget Sound science and policy. It all begins, he says, with the mixing of fresh and salt water and something called the estuarine exchange flow.
Eyes Over Puget Sound: Surface Conditions Report - March to June 2022
Low air temperatures, rain, and late snow accumulation pushed back the discharge of meltwater to Puget Sound this season. The water temperature in Puget Sound was mostly at expected levels, but cooler in South Sound by May. Central Sound saw more oxygenated conditions. This year, La Niña weather made flying for aerial photography challenging, but by June, sunny days made up for it, revealing a high number of schooling fish, unusually low tides, and a glimpse of macroalgae to come. Internal waves in Central Basin and Puget Sound, and the beauty of Puget Sound from the air, are a reminder of the unique place we live in.
The retreating glaciers of Puget Sound
Puget Sound's glaciers are melting rapidly due to climate change. The North Cascades mountains have lost about 56% of their glacial ice while estimates show that glaciers in the Olympics could be gone within the next 50 years. Scientists say salmon and other species could be hard hit as the region loses its “giant storage tank” of ice.
Rethinking flood control for the Nooksack River
Can restoring the natural balance of the Nooksack River also reduce flood risks? Officials on both sides of the U.S.-Canada border are taking note as climate change raises the stakes.
Eyes Over Puget Sound: Surface Conditions Report - February 25, 2022
The winter was cold and wet, resulting in a good snowpack in the mountains to sustain river flows into summer. In Puget Sound, saltier waters in summer transitioned to fresher conditions by fall 2021. Water temperatures in late winter 2022 are now colder and oxygen levels are high. From the air, Puget Sound looks spectacular, with few events to report. First signs of the spring bloom were visible in protected bays and passes. Port Susan and Carr Inlet already show sizable patches of drifting organic material. Small jellyfish patches were present in Eld Inlet.
How do you build an estuary? The answer lies in Puget Sound’s geologic history
Puget Sound is often referred to as the second largest estuary in the United States behind only Chesapeake Bay, but its overall size may be less important than its complexity. The place is defined by the mixing of saltwater from the ocean and freshwater from creeks and rivers that create an almost alchemical transformation of habitat. In this article, we look at the geologic forces that formed Puget Sound and made it the dynamic system that we understand today.
Eyes Over Puget Sound - 2021 Year in Review
The year 2021 was generally drier and warmer including a heat wave in June. Higher river flows followed a rainy and cloudy fall. In 2021, EOPS aerial images continued to capture the diversity of phenomena on the water, with support from its wonderful contributors who documented visible water quality issues across the larger Puget Sound region. With our Artists Corner and story maps on critters in the mud, we hope to continue to inspire, educate, and motivate our community to keep curious and watchful eyes over the environment.
State of the Sound report 2021
The 2021 State of the Sound is the Puget Sound Partnership’s seventh biennial report to the Legislature on progress toward the recovery of Puget Sound. The document reports on both the status of the Partnership's recovery efforts and a suite of ecosystem indicators referred to as the Puget Sound Vital Signs.
Puget Sound Marine Waters 2020 Overview
The tenth annual Puget Sound Marine Waters Overview looks at marine water quality and other conditions in the region in 2020. According to the report, there were few extreme weather or ecological events in 2020, but overall, conditions in Puget Sound were generally warmer, sunnier, and wetter than in typical years. The overview also examines patterns and trends in numerous environmental parameters, including plankton, water quality, climate, and marine life.
Eyes Over Puget Sound: Surface Conditions Report - September 8, 2021
This summer river flows were generally lower than in 2020. And in August, high air temperatures and low precipitation continued, following a drought emergency declaration in mid-July that affected also marine conditions. The higher-than-normal salinity anomaly which persisted during summer in Puget Sound marine water is, however, eroding away, and lower-than-normal oxygen conditions developed in Central Sound in the month of August. Many blooms and organic material were reported by citizens throughout summer, and by September many colorful blooms in bays across the region continue to be active. Patches of macro-algae and organic debris are still numerous in South and Central Sound and in Padilla Bay. Jellyfish are occurring in unusual places. While we document water quality issues, we are also showcasing the natural beauty of Puget Sound through photography.
Eyes Over Puget Sound: Surface Conditions Report - June 17, 2021
Despite a La Niña, precipitation and rain have been lower since March, leaving only snow-fed rivers running high. Due to lower rainfall and warm summer temperatures the salinity of Puget Sound is now generally higher. Strong blooms and large patches of organic material and macro-algae are building up in many places and wash onto beaches. During very hot summer days, tidal mudflats and beaches can get really warm. Beach wrack can harbor increased bacteria numbers now. See SCUBA cleaning up at Redondo beach.
Eyes Over Puget Sound: Surface Conditions Report - April 1, 2021
After a wet winter/spring transition it has been noticeably drier, warmer and sunnier. River flows are near normal levels and in Puget Sound and coastal bays salinity is increasing above normal. The spring bloom is developing but not very pronounced, yet, Noctiluca is already visible in southern Hood Canal. Suspended sediment near rivers and creeks, failing bluffs, and shellfish activities are frequent. Capturing herring spawning from the plane is informative; pilots share their observations.
The Salish Sea Model
The Salish Sea Model is a computer model used to predict spatial and temporal patterns related to water circulation in the Salish Sea. It was developed at the United States Department of Energy's Pacific Northwest National Laboratory with funding from the Environmental Protection Agency. It is housed at the University of Washington Center for Urban Waters which is affiliated with the Encyclopedia of Puget Sound.
Eyes Over Puget Sound: Surface Conditions Report - March 11, 2021
We are in a weakening La Niña, coastal downwelling has lessened and we are getting out of a cold and wet stretch, hurray. In March, rivers have almost returned to normal and carry clear water. It’s a good time to go diving if you don’t mind cold water. The productive season has only started in some places and patches of jellyfish are visible. Have a look at this edition and marvel about the secrets of the dead, or mysterious sediment clouds and the oil sheen spotted near Lummi Bay.
Eyes Over Puget Sound: Surface Conditions Report - February 3, 2021
Rivers are flowing higher than normal since 2020. Winter weather has been warmer and wetter. In marine waters, temperatures have become too cool for Northern Pacific anchovies to tolerate in North Sound. From patches of jellyfish and snow geese, to sediment and early blooms, there is more happening in the winter than you might expect. Puget Sound has many species worth showcasing such as the heart crab – a shy critter that wears its heart on its shell.
Priority science to support Puget Sound recovery: A Science work plan for 2020-2024
Priority Science to Support Recovery of the Puget Sound Ecosystem: A Science Work Plan for 2020-2024 (SWP for 2020-2024) describes the information, learning, and interaction needed to support the coordinated efforts to recover, protect, and improve the resilience of the Puget Sound ecosystem.
Eyes Over Puget Sound - 2020 Year in Review
The Washington State Department of Ecology has prepared a summary review of its Eyes Over Puget Sound surface condition reports from 2020.
2019 Puget Sound Marine Waters Overview
A new report from the Puget Sound Ecosystem Monitoring Program details the effects of a changing climate on Puget Sound in 2019, and documents how these changes moved through the ecosystem to affect marine life and seafood consumers.
Eyes Over Puget Sound: Surface Conditions Report - October 26, 2020
After a relatively warm summer and fall, and La Niña forming in the tropics, stream flows in the Puget Sound region are now relatively normal. Summer in Puget Sound produced lots of algal and organic material in the water and on beaches, which by October have disappeared. Kelp beds look strong in northern Puget Sound and the Straits; and the harvest of the annual chum salmon run is in full swing in Hood Canal. Jellyfish aggregations are visible in Budd and Sinclair Inlets — and some of the jellyfish might conceal a beast of another kind within. Oil sheens on the water are currently numerous.
Nooksack River Transboundary Technical Collaboration Group 2019-2020 annual report
The Nooksack River watershed spans part of the border between British Columbia and the State of Washington. In August 2018, the international, multi-agency Nooksack River Transboundary Technical Collaboration Group (TCG) was established to implement a three-year work plan to reduce fecal bacteria concentrations in the Nooksack River watershed. This 2019-2020 TCG annual report summarizes second year project activities and focuses on three of the watershed's transborder sub-basins.
Puget Sound's 'warm snow’ makes region vulnerable to climate shifts
Climate models project that if carbon emmisions continue as they are now, the vast majority of watersheds feeding Puget Sound will receive more rain and far less snow by 2080, causing increased flooding and other dramatic changes to the freshwater ecosystem. We look at the past and possible future of the region's snowpack and what this might mean for salmon and other species — including humans.
Eyes Over Puget Sound: 2019 Year in Review
The Washington State Department of Ecology has prepared a summary review of its Eyes Over Puget Sound surface condition reports from 2019. The year started with snow, and a summer drought kept river flows low. As a result, salinities in Puget Sound were elevated year round. Warmer surface water temperatures in spring gradually extended to greater depth by late summer. The spring bloom was strong, and South Sound provided optimal conditions for anchovies that showed up in high numbers. A coccolithophore bloom stained Hood Canal turquoise, and Port Angeles and Discovery Bay were colored red-brown by strong blooms. Noctiluca and macroalgae, both known eutrophication indicators in coastal regions, were abundant in Central Sound, and extended into South Sound and Whidbey Basin. Large numbers of jellyfish occurred in Quartermaster Harbor, Sinclair Inlet, and parts of Orcas Island.
Eyes Over Puget Sound: Surface Conditions Report - October 30, 2019
After a dry early summer followed by more than expected rain, rivers mostly remained lower than in 2018. In October air temperatures dropped, but water temperatures remained warm enough for spawning anchovies in South and Central Sound and herring and salmon optimal growth in Whidbey Basin. By the end of October many red-brown blooms vanished, yet the waters of South Sound are still green, adorned with rafts of organic debris in many places. Read what happened the year before in the Puget Sound Marine Waters 2018 Overview.
Eyes Over Puget Sound: Surface Conditions Report - September 12, 2019
This year, air temperatures were warmer than in previous years, and this pattern is predicted to continue. Precipitation was low and is now improving, yet river flows remain low. By August, Puget Sound surface water temperatures were 0.6 °C warmer across all regions; this could have shifted the timing of optimal temperatures for some marine organisms. In September, blooms are limited to inlets. Jellyfish are abundant in Sinclair Inlet, and anchovies reside in Eld Inlet. Macroalgae are still plentiful. Learn about the benefits of beach wrack and a DNA barcoding project supported by Ecology.
Eyes Over Puget Sound: Surface Conditions Report - July 29, 2019
In July, the recent trends of warm, dry conditions lessened; however, river flows remain low. Extensive macroalgae drifted through South and Central Sound and washed up on beaches. Macroalgae growth is fueled by excessive nutrients and sunshine. When it washes onto the beach, it is called beach wrack, and it can be a health risk to beachgoers because of bacteria it can harbor. From our aerial photography, we saw that Southern Hood Canal looks tropical because of a bloom of coccolithophores coloring the water turquoise. Schools of fish congregate in South Sound and southern Hood Canal. Jellyfish are abundant in Quartermaster Harbor.
Salish Sea Model looks at climate impacts on the nearshore
A 2019 paper in the Journal of Geophysical Research: Oceans outlines how the Salish Sea Model describes the impacts of climate change, sea level rise and nutrient loads on the region's nearshore environment.
Eyes Over Puget Sound: Surface Conditions Report - May/June 2019
Warm and dry conditions this spring are predicted to persist into summer, resulting in saltier and warmer than normal Puget Sound water conditions. Early upwelling and a premature melt of the snowpack means nutrient-rich ocean water likely already entered Puget Sound. This sets the stage for a lot of biological activity. From the air, it is obvious that the productive season is in full swing. We saw large algae blooms in Central Sound along with abundant Noctiluca. Huge numbers of anchovies were documented in Case Inlet and other finger inlets in South Sound, attracting hundreds of marine mammals.
Eyes Over Puget Sound: Surface Conditions Report - March 26
Following a generally warmer and drier winter and then a cold spell in February, Puget Sound waters are cold for anchovies. The productive season is in full swing with algal blooms spotted in South Sound, Kitsap Peninsula, and Quartermaster Harbor. Jellyfish are abundant in some inlets, and Noctiluca stains the water orange in Hood Canal. We collect monthly data to keep you informed about the conditions around Puget Sound. Come into the lab and see how we assure the highest data quality from our field instruments!
Eyes Over Puget Sound: Surface Conditions Report - February 21, 2019
Although fall and winter were warm, February brought cold snowy weather and low river flows. Despite colder air temperatures, the productive season has already started in Hood Canal and Holmes Harbor. Puget Sound waters were warmer than expected through January, and the warmest waters were in Hood Canal, possibly creating a thermal refuge for cold-sensitive species such as anchovies. We saw lots of sea lions feasting on anchovies in Case Inlet, and we may have captured some herring spawning activity. Unusual for mid-winter, we saw jellyfish patches in Eld and Budd inlets. See the new publication about ocean acidification featuring twenty-five years of our marine monitoring data!
Eyes Over Puget Sound: 2018 Year in Review
In 2018, water temperatures were slightly warmer than normal. Aerial photos revealed many spawning herring and baitfish as well as algal blooms. We also saw abundant macro-algae, a persistent Noctiluca bloom, and countless red blooms. Were these observations related to the cool, wet spring followed by a warm, dry, and sunny summer? Or did the neutral boundary conditions in the Pacific Ocean also play a role? A full summary is available in the report.
2017 Puget Sound Marine Waters Overview
The Puget Sound Ecosystem Monitoring Program has released its seventh annual Marine Waters Overview. The report provides an assessment of marine conditions for the year 2017 and includes updates on water quality as well as status reports for select plankton, seabirds and fish.
Eyes Over Puget Sound: Surface Conditions Report – June 28, 2018
During June, near normal air temperatures and continued low precipitation have resulted in highly variable freshwater inputs to Puget Sound. A large Noctiluca bloom extends across the South Central Basin of Puget Sound. Coccolithophores are blooming in Hood Canal. Macroalgae is drifting as mats on the water in Port Madison, South Central Basin, and South Sound. They are also piling up on beaches in South and Central Puget Sound and Whidbey Basin. Juvenile fish are migrating out of the estuaries and meeting a complex thermal habitat. New infrared images tell the story. Meet our ocean acidification expert, Stephen Gonski.
Are we making progress on salmon recovery?
In recent decades, hundreds of millions of dollars have been spent to restore habitat for Puget Sound salmon. In this article, we look at how scientists are gauging their progress. Are environmental conditions improving or getting worse? The answer may depend on where you look and who you ask.
Puget Sound Ecosystem Monitoring Program
The Puget Sound Ecosystem Monitoring Program (PSEMP) is an independent program established by state and federal statute to monitor environmental conditions in Puget Sound.
Floodplain projects open doors to fewer floods and more salmon
A new approach to flood control is taking hold across Puget Sound. Rivers, scientists say, can be contained by setting them free. Conservationists hope this is good news for salmon recovery.
Puget Sound's physical environment
The Puget Sound ecosystem is shaped by its physical environment. This article looks at Puget Sound's geologic history as well as dynamic factors such as the flow of its rivers and currents.
2015 Puget Sound Marine Waters Overview
The Puget Sound Ecosystem Monitoring Program released its fifth annual Marine Waters Overview this week. The report provides an assessment of marine conditions for the year 2015 and includes updates on water quality as well as status reports for select plankton, seabirds, fish and marine mammals.
Snohomish Basin Protection Plan
A 2015 report from Snohomish County, King County and the Tulalip Tribes outlines protection strategies for salmon and salmon habitat within the Snohomish Basin.
Water and nutrient circulation in Puget Sound
Complex physical processes such as hydrology, nutrient cycling, and sediment transport are linked to water circulation patterns in Puget Sound.
Will Ballard Locks withstand a major earthquake?
For close to 100 years, Seattle's Ballard Locks has been one of the region's busiest waterways, drawing major boat traffic along with millions of tourists. But as it prepares to celebrate its centennial, the aged structure is also drawing the concern of engineers. They worry that an earthquake could cause the locks to fail, draining massive amounts of water from Lake Washington and Lake Union. In some scenarios, the two lakes could drop by as much as 20 feet, stranding boats, disabling bridges and causing big problems for salmon restoration.
Salmon live in a topsy-turvy world upstream of the Ballard Locks
Chinook, coho and sockeye salmon, along with steelhead trout, live in the Lake Washington watershed and navigate a treacherous route through the Ballard Locks on their way to Puget Sound.
Climate and ocean processes
This overview discusses the processes that control ocean and climate characteristics. Topics include atmospheric forcing, precipitation patterns, oscillation trends, coastal upwelling, and climate change.
Birch Bay characterization and watershed planning pilot – taking action
A 2015 report from the Whatcom Conservation District and Whatcom County describes a pilot watershed characterization study focusing on the Terrell Creek and Birch Bay areas. The report and related appendices are available for download.
State of Knowledge: Climate Change in Puget Sound
A 2015 report from the University of Washington provides the most comprehensive assessment to date of the expected impacts of climate change on the Puget Sound region.
Puget Sound Fact Book
The Puget Sound Fact Book brings together statistics and other information about the health and makeup of the Puget Sound ecosystem. Areas of focus include climate change, geography, water quality, habitats, human dimensions and regional species. The fact book was prepared for the Encyclopedia of Puget Sound with funding from the Environmental Protection Agency and the Puget Sound Partnership.
Puget Sound: A uniquely diverse and productive estuary
Puget Sound is the second largest estuary in the United States. Today, we understand that estuaries—where freshwater and saltwater merge—are among the most productive places for life to exist.
2014 Puget Sound Marine Waters Overview
A report from NOAA and the Puget Sound Ecosystem Monitoring Program provides an overview of 2014 marine water quality and conditions in Puget Sound from comprehensive monitoring and observing programs.
2014 state of salmon in watersheds executive summary
This report documents how Washingtonians have responded to the challenges of protecting and restoring salmon and steelhead to healthy status. It also serves as a tool to summarize achievements, track salmon recovery progress through common indicators, and identify data gaps that need to be filled.
Future scenarios for climate change in Puget Sound
The University of Washington Climate Impacts Group has been analyzing the potential effects of climate change in Puget Sound. The projections below represent some of their most recent reporting about expected conditions in the region over the next 50 to 100 years. Support for this article was provided by the Puget Sound Partnership.
Chemistry of Puget Sound waters and influencing factors
This 1954 report present the results of a geochemical investigation, based on existing data, of the waters of Puget Sound. Rivers draining into the Puget Sound and upwelled water moving in at depth from Juan de Fuca Strait are the chief sources of the chemical constituents in Puget Sound.
2012 state of salmon in watersheds executive summary
Salmon recovery demands both dedication among people with different interests, and sustained resources. This biennial report tells the story of the progress made to date and the challenges ahead.
Time of emergence of climate change signals in the Puget Sound Basin
A December 2014 report from the University of Washington examines when and where climate change impacts will occur in the Puget Sound watershed.
Online resource identifies 'time of emergence' for Puget Sound climate impacts
When and where will we see the impacts of climate change in Puget Sound? A web-based tool factors in dozens of site-specific variables for watersheds throughout the Pacific Northwest. The resource was developed by the University of Washington Climate Impacts Group with support from the EPA, the US Army Corps of Engineers and the Center for Data Science, University of Washington-Tacoma.
Ranking the greatest threats to Puget Sound: A summary of the 2014 Puget Sound Pressures Assessment
This paper summarizes a 2014 report ranking the greatest human-caused threats to the Puget Sound ecosystem.
Climate change vulnerability and adaptation in the North Cascades Region, Washington
A 2014 report by the North Cascadia Adaptation Partnership identifies climate change issues relevant to resource management in the North Cascades, and recommends solutions that will facilitate the transition of the diverse ecosystems of this region into a warmer climate.
Development of a stormwater retrofit plan for Water Resources Inventory Area (WRIA) 9: Comprehensive needs and cost assessment and extrapolation to Puget Sound
A 2014 King County report projects the capital and maintenance costs of the stormwater treatment facilities that would be needed, within WRIA 9 and the Puget Sound region, to fully comply with the Clean Water Act.
Stormwater fixes could cost billions
Pollution from stormwater has been called one of the greatest threats to Puget Sound. How much will it cost to hold back the rain? A new EPA-funded study says the price could reach billions per year, a figure that dwarfs current state and federal allocations.
Influence of climate and land cover on river discharge in the North Fork Stillaguamish River
A 2014 report prepared by the Stillaguamish Tribe analyzes potential causes of changes in peak and low flows in the Stillaguamish River basin.
Health of the Salish Sea as measured using transboundary ecosystem indicators
A December 2014 paper in the journal Aquatic Ecosystem Health & Management describes a project to identify transboundary ecosystem indicators for the Salish Sea.
Nature inspires new approach to flood control
Scientists are rethinking floodplain management in Puget Sound. Can we have our farms and salmon too?
Comprehensive watershed plan for sustainable development and restoration of the Gorst Creek watershed
A 2014 report explains the development of a comprehensive land use plan that is based on the ecological values and functions of the Gorst Creek Watershed in southeast Kitsap County.
State of the physical, biological and selected fishery resources of Pacific Canadian marine ecosystems in 2013
A summary of environmental conditions in Pacific Canadian Waters and the broader North East Pacific in 2013.
2013 Puget Sound Marine Waters Overview
A report from the Puget Sound Ecosystem Monitoring Program provides an overview of 2013 marine water quality and conditions in Puget Sound from comprehensive monitoring and observing programs.
Videos: The Puget Sound Model
The Puget Sound Model was designed and built by the University of Washington School of Oceanography in the early 1950s to simulate the tides and currents of Puget Sound. A series of videos produced by the Encyclopedia of Puget Sound describes its construction and operation.
The Puget Sound Model
The Puget Sound Model was designed and built in the early 1950s at the University of Washington School of Oceanography as a research and teaching tool for understanding Puget Sound circulation patterns.
Water Undone: The Efforts to Save the Puyallup River Watershed
A 2010 video by the University of Washington Tacoma describes efforts to protect and restore the Puyallup watershed.
Climate change impacts and adaptations in Washington State: Technical summaries for decision makers
A December 2013 report by the University of Washington Climate Impacts Group projects wide reaching change for the Puget Sound ecosystem and the Pacific Northwest. Lead author: Encyclopedia of Puget Sound climate change topic editor Amy Snover.
An inventory of scientific research associated with Puget Sound recovery from 2011-2013
Every two years the Puget Sound Partnership is required to assess the status of scientific research relating to the recovery of Puget Sound, in a document knows as the Biennial Science Work Plan (BSWP). Among other tasks, this entails making an inventory of all ongoing research projects in the current biennium (2011-2013). We are posting this (draft) inventory of recovery-relevant research projects here to make the information generally available.
Exhibit traces Elwha restoration
The Encyclopedia of Puget Sound spoke with Seattle Times reporter Lynda Mapes about the exhibit Elwha: A River Reborn, which opened at the University of Washington Burke Museum on November 23rd. The exhibit is based on the book of the same title by Mapes and photographer Steve Ringman, and tells the story of the largest dam removal in U.S. history.
Climate change in the northwest— implications for our landscapes, waters and communities
This report is published as one of a series of technical inputs to the Third National Climate Assessment (NCA) report.
2012 Puget Sound Marine Waters Overview
The Puget Sound Marine Waters 2012 Overview from the Puget Sound Ecosystem Monitoring Program synthesizes conditions measured in 2012 and has been expanded to include observations on seabirds that rely on marine waters. Read an excerpt below, or download the full report.
About the Eyes Over Puget Sound monitoring program
Once a month, Washington State Department of Ecology marine scientists take to the air to obtain high-resolution aerial photo observations and gather water data at the agency's monitoring stations and via state ferry transects. This provides a visual picture of the health of Puget Sound, which they call Eyes Over Puget Sound or EOPS.
Suspended-sediment concentrations during dam decommissioning in the Elwha River, Washington
This document was prepared by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency and the National Park Service. Download the entire report, or read the Introduction below. Portions of this document were originally published in June 2013 and were updated in February 2014.
Water quality model development and application in Puget Sound and Georgia Basin
A recent summary includes information compiled in Winter 2013 by the modeling workgroup of the Puget Sound Ecosystem Monitoring Program (PSEMP). It describes several ecosystem modeling efforts in the region.
2011 Puget Sound Marine Waters Overview
The Puget Sound Marine Waters 2011 report is now available. The report was produced by the Puget Sound Ecosystem Monitoring Program and assesses the condition and quality of the waters of Puget Sound.
Red-legged frogs in the Puget Sound watershed
The Northern Red-legged Frog is described here relative to its local behavior, habitat, threats and morphology.
Climate change impacts on water management in the Puget Sound region
Climate change is projected to result, on average, in earlier snowmelt and reduced summer flows, patterns that are not well represented in the historical observations used for planning and reliability analyses by water utilities.