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Filter Total Items: 84
Mount Rainier seen from Puyallup, Washington
Date Published: March 17, 2016

Volcano Hazards Assessments Help Mitigate Disasters

The Volcano Hazards Program develops long-range volcano hazards assessments. These includes a summary of the specific hazards, their impact areas, and a map showing ground-hazard zones. The assessments are also critical for planning long-term land-use and effective emergency-response measures, especially when a volcano begins to show signs of unrest.

Mount St. Helens and Mount Rainier, northern aerial view
Date Published: March 2, 2016

Cascades Volcano Observatory (CVO)

The CVO staff conduct research on many aspects of active volcanism, respond to dangerous volcanic activity in many parts of the world, and maintain a close watch over volcanoes in Washington, Oregon and Idaho. The USGS established CVO in Vancouver, Washington, after the May 18, 1980, eruption of Mount St. Helens.

USGS science for a changing world logo
Date Published: February 26, 2016

Metapopulation Dynamics of the Adélie Penguin

The Oregon Cooperative Unit, graduate students, and a group of U.S. and international collaborators are conducting long-term research on the Adélie penguin on Ross Island, Antarctica. This species depends on sea ice (obligate) and in some regions of Antarctica is being affected by climate change’s influence on sea ice patterns.

adcp north santiam river
Date Published: October 31, 2015
Status: Completed

North Santiam River Basin Study

Between 1999 and 2015, the USGS monitored water-quality conditions in the North Santiam River Basin. Streamflow conditions are still monitored.

Monitoring Recharge in Areas of Seasonally Frozen Ground in the Columbia Plateau and Snake River Plain Report Cover
Date Published: January 2, 2014
Status: Completed

Recharge and frozen ground in the PNW

The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent...

Contacts: Mark Mastin
Rock Creek (Clackamas)
Date Published: October 31, 2013
Status: Active

Clackamas River Basin Water-Quality Assessment

Starting in 1997, the USGS began routinely studying water resources in the Clackamas River Basin. Whether it be assessing harmful algal blooms, runoff issues, streamflow, or watershed health, the USGS has worked with its partners to maintain one of Oregon's most beloved rivers.

using SPARROW models cover
Date Published: January 2, 2013
Status: Completed

Phosphorus SPARROW Model for the Yakima River

The Issue - During the 2004-07 irrigation season, nutrient concentrations in the lower Yakima River were high enough at certain times and locations to support the abundant growth of periphytic algae and macrophytes which resulted in large daily fluctuations in dissolved oxygen concentrations and pH levels that exceeded the Washington State water-quality standards for these...

Contacts: Norman Buccola
Groundwater Flow in the Columbia Plateau Regional Aquifer System Cover
Date Published: January 3, 2011
Status: Completed

Columbia Plateau Groundwater Availability Study

The Columbia Plateau Regional Aquifer System (CPRAS) covers about 44,000 square miles of eastern Oregon and Washington and western Idaho. The primary aquifers are basalts of the Columbia River Basalt Group and overlying basin-fill sediments. Groundwater availability issues in the basin include: 1) widespread water-level declines caused by pumping, 2) reduction in base flow to rivers and...

Evaluation of Sources of Nitrate Beneath Food Processing Wastewater
Date Published: January 2, 2006
Status: Completed

Nitrate in GW, Lower Umatilla Basin, OR

Stretching from Pendleton, Oreg., to the Columbia River, the Lower Umatilla Basin covers 550 square miles. Concentrations of nitrate in the basin's ground water frequently exceed national drinking-water standards. The basin's complex ground-water system is exposed to five human-related sources of nitrate: septic tanks, feedlots, explosives, fertilizer, and land applications of food waste....

USGS
Date Published: October 10, 2000
Status: Completed

Willamette Basin Groundwater Study

The U.S. Geological Survey (USGS) studies the water resources of the Willamette River Basin. Here you will find a description of the study, as well as information and data resulting from this work.

Contacts: Terrence Conlon
Filter Total Items: 80
USGS
January 1, 2015

This Data Release contains data from the U.S. Geological Survey (USGS) survey of the Oregon outer Continental shelf (OCS) Floating Wind Farm Site in 2014.
The backscatter intensity data was collected along with bathymetry data by USGS during the period from August 20 to September 1, 2014, using a Reson 7111 multibeam echosounder. The mapping mission collected bathymetry data from ab

USGS
January 1, 2015

This Data Release contains data from the USGS survey of the Oregon OCS Floating Wind Farm Site in 2014. The shaded-relief raster was generated from bathymetry data collected by USGS during the period from August 20 to September 1, 2014. using a Reson 7111 multibeam echosounder. The mapping mission collected bathymetry data from about 163 m to 566 m depths on the Oregon outer continental shelf.

USGS
January 1, 2015

This part of the USGS data release presents bathymetry data for the Columbia River Mouth, Oregon and Washington. The bathymetry data of the Columbia River Mouth, Oregon and Washington were collected by the U.S. Geological Survey (USGS). Mapping was completed in 2013, using a 234-kHz SEA SWATHPlus interferometric system. These data are not intended for navigational purposes.

 Screen Shot of the Land Treatment Digital Library Home Page
November 23, 2013

The Land Treatment Digital Library (LTDL) was created by the USGS to catalog legacy land treatment information on Bureau of Land Management lands in the western United States. The LTDL can be used by federal managers and scientists for compiling information for data-calls, producing maps, generating reports, and conducting analyses at varying spatial and temporal scales.

Land Treatment Digital Library version 6, application splash screen
July 24, 2013

This software allows agencies, organizations, and individuals to download an empty, stand-alone Land Treatment Digital Library database to individual or networked computers. Data entered in these databases may be submitted to the USGS for possible inclusion in the online Land Treatment Digital Library (https://ltdl.wr.usgs.gov).

Screen shot of NSDI node for HA694C
January 1, 2009

This data set consists of hydrographic area and major flow system boundaries and polygons delineated at 1:1,000,000-scale for the Great Basin.

USGS: Science for a changing world
June 3, 2003

U.S. Geological Survey (USGS) collected bathymetric data from the main stem Willamette River in March of 2002. These cross-sectional and longitudinal profile data were important in filling a large data gap and were instrumental in the creation of a representative model grid for the Willamette River. 

USGS: Science for a changing world
October 5, 2002

As part of the U.S. Geological Survey's support of the technical analyses and temperature model development for Willamette Basin streams, U.S. Geological Survey (USGS) personnel carried out four dye studies in Willamette Basin streams in 2002.

Filter Total Items: 183
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Year Published: 2012

A Markov chain analysis of the movements of juvenile salmonids, including sockeye salmon, in the forebay of McNary Dam, Washington and Oregon, 2006-09

Passage and survival data were collected at McNary Dam between 2006 and 2009. These data have provided critical information for resource managers to implement structural and operational changes designed to improve the survival of juvenile salmonids as they migrate past the dam. Much of the valuable information collected at McNary Dam was in the...

Adams, Noah S.; Hatton, Tyson W.
A Markov chain analysis of the movements of juvenile salmonids, including sockeye salmon, in the forebay of McNary Dam, Washington and Oregon, 2006-09; 2012; OFR; 2012-1120; Adams, Noah S.; Hatton, Tyson W.

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Year Published: 2012

Distribution and condition of young-of-year Lost River and shortnose suckers in the Williamson River Delta restoration project and Upper Klamath Lake, Oregon, 2008-10--Final Report

The Nature Conservancy undertook restoration of the Williamson River Delta Preserve with a primary goal "to restore and maintain the diversity of habitats that are essential to the endangered [Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris)] while, at the same time, minimizing disturbance and adverse impacts" (...

Burdick, Summer M.; Hewitt, David A.
Distribution and condition of young-of-year Lost River and shortnose suckers in the Williamson River Delta restoration project and Upper Klamath Lake, Oregon, 2008-10--Final Report; 2012; OFR; 2012-1098; Burdick, Summer M.; Hewitt, David A.

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Year Published: 2012

Tagging age-1 Lost River and shortnose suckers with passive integrated transponders, Upper Klamath Lake, Oregon–Summary of 2009–11 effort

A passive integrated transponder (PIT) tagging study was initiated in 2009 for age-1 endangered Lost River and shortnose suckers in Upper Klamath Lake, Oregon, for the purpose of examining causes of mortality, validating estimated age to maturity, and examining movement patterns. This study, which was done opportunistically in 2009 and 2010,...

Burdick, Summer M.
Tagging age-1 Lost River and shortnose suckers with passive integrated transponders, Upper Klamath Lake, Oregon–Summary of 2009–11 effort; 2012; OFR; 2012-1076; Burdick, Summer M.

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Year Published: 2012

Dispersal of larval suckers at the Williamson River Delta, Upper Klamath Lake, Oregon, 2006-09

An advection/diffusion modeling approach was used to simulate the transport of larval suckers from spawning areas in the Williamson River, through the newly restored Williamson River Delta, to Upper Klamath Lake. The density simulations spanned the years of phased restoration, from 2006/2007 prior to any levee breaching, to 2008 when the northern...

Wood, Tamara M.; Hendrixson, Heather A.; Markle, Douglas F.; Erdman, Charles S.; Burdick, Summer M.; Ellsworth, Craig M.; Buccola, Norman L.
Dispersal of larval suckers at the Williamson River Delta, Upper Klamath Lake, Oregon, 2006-09; 2012; SIR; 2012-5016; Wood, Tamara M.; Hendrixson,Heather A.; Markle, Douglas F.; Erdman, Charles S.; Burdick, Summer M.; Ellsworth, Craig M.; Buccola, Norman L.

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Year Published: 2012

Distribution and condition of larval and juvenile Lost River and shortnose suckers in the Williamson River Delta restoration project and Upper Klamath Lake, Oregon

Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in other lakes. Poor recruitment to the adult spawning populations is one of several...

Burdick, Summer M.
Distribution and condition of larval and juvenile Lost River and shortnose suckers in the Williamson River Delta restoration project and Upper Klamath Lake, Oregon; 2012; OFR; 2012-1027; Burdick, Summer M.

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Year Published: 2012

Simulated effects of dam removal on water temperatures along the Klamath River, Oregon and California, using 2010 Biological Opinion flow requirements

Computer model simulations were run to determine the effects of dam removal on water temperatures along the Klamath River, located in south-central Oregon and northern California, using flow requirements defined in the 2010 Biological Opinion of the National Marine Fisheries Service. A one-dimensional, daily averaged water temperature model (River...

Risley, John C.; Brewer, Scott J.; Perry, Russell W.
Simulated effects of dam removal on water temperatures along the Klamath River, Oregon and California, using 2010 Biological Opinion flow requirements; 2012; OFR; 2011-1311; Risley, John C.; Brewer, Scott J.; Perry, Russell W.

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Year Published: 2011

Assessment of topographic and drainage network controls on debris-flow travel distance along the west coast of the United States

To better understand controls on debris-flow entrainment and travel distance, we examined topographic and drainage network characteristics of initiation locations in two separate debris-flow prone areas located 700 km apart along the west coast of the U.S. One area was located in northern California, the other in southern Oregon. In both areas,...

Coe, Jeffrey A.; Reid, Mark E.; Brien, Dainne L.; Michael, John A.
Assessment of topographic and drainage network controls on debris-flow travel distance along the west coast of the United States; 2011; Article; Journal; Italian Journal of Engineering Geology and Environment; 5th International Conference on Debris-Flow Hazards "Mitigation, Mechanics, Prediction and Assessment"; Coe, Jeffrey A.; Reid, Mark E.; Brien, Dainne L.; Michael, John A.

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Year Published: 2011

Simulating daily water temperatures of the Klamath River under dam removal and climate change scenarios

A one-dimensional daily averaged water temperature model was used to simulate Klamath River temperatures for two management alternatives under historical climate conditions and six future climate scenarios. The analysis was conducted for the Secretarial Determination on removal of four hydroelectric dams on the Klamath River. In 2012, the...

Perry, Russell W.; Risley, John C.; Brewer, Scott J.; Jones, Edward C.; Rondorf, Dennis W.
Simulating daily water temperatures of the Klamath River under dam removal and climate change scenarios; 2011; OFR; 2011-1243; Perry, Russell W.; Risley, John C.; Brewer, Scott J.; Jones, Edward C.; Rondorf, Dennis W.

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Year Published: 2011

Map of debris flows caused by rainfall during 1996 in parts of the Reedsport and Deer Head Point quadrangles, Douglas County, southern Coast Range, Oregon

This 1:12,000-scale map shows an inventory of debris flows caused by rainfall during 1996 in a 94.4 km2 area in the southern Coast Range of Oregon. This map and associated digital data are part of a larger U.S. Geological Survey study of debris flows in the southern Coast Range. Available evidence indicates that the flows were triggered by a rain...

Coe, Jeffrey A.; Michael, John A.; Burgos, Marianela Mercado
Map of debris flows caused by rainfall during 1996 in parts of the Reedsport and Deer Head Point quadrangles, Douglas County, southern Coast Range, Oregon; 2011; OFR; 2011-1150; Coe, Jeffrey A.; Michael, John A.; Burgos, Marianela Mercado

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Year Published: 2011

Proceedings of the Klamath Basin Science Conference, Medford, Oregon, February 1-5, 2010

This report presents the proceedings of the Klamath Basin Science Conference (February 2010). A primary purpose of the meeting was to inform and update Klamath Basin stakeholders about areas of scientific progress and accomplishment during the last 5 years. Secondary conference objectives focused on the identification of outstanding information...

Thorsteinson, Lyman K.; Vanderkooi, Scott P.; Duffy, Walter G.

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Year Published: 2011

Analysis of dam-passage survival of yearling and subyearling Chinook salmon and juvenile steelhead at The Dalles Dam, Oregon, 2010

We performed a series of analyses of mark-recapture data from a study at The Dalles Dam during 2010 to determine if model assumptions for estimation of juvenile salmonid dam-passage survival were met and if results were similar to those using the University of Washington's newly developed ATLAS software. The study was conducted by the Pacific...

Beeman, John W.; Kock, Tobias J.; Perry, Russell W.; Smith, Steven G.
Analysis of dam-passage survival of yearling and subyearling Chinook salmon and juvenile steelhead at The Dalles Dam, Oregon, 2010; 2011; OFR; 2011-1162; Beeman, John W.; Kock, Tobias J.; Perry, Russell W.; Smith, Steven G.;

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Year Published: 2011

Coastal subsidence in Oregon, USA during the giant Cascadia earthquake of AD 1700

Quantitative estimates of land-level change during the giant AD 1700 Cascadia earthquake along the Oregon coast are inferred from relative sea-level changes reconstructed from fossil foraminiferal assemblages preserved within the stratigraphic record. A transfer function, based upon a regional training set of modern sediment samples from Oregon...

Hawkes, A.D.; Horton, B.P.; Nelson, A.R.; Vane, C.H.; Sawai, Y.
Coastal subsidence in Oregon, USA during the giant Cascadia earthquake of AD 1700; 2011; Article; Journal; Quaternary Science Reviews; Hawkes, A. D.; Horton, B. P.; Nelson, A. R.; Vane, C. H.; Sawai, Y.

Filter Total Items: 177
Installation of PIT tag antennas
July 3, 2014

Installation of two 20' PIT tag antennas

Installation of two 20' PIT tag antennas.  Antennas are used to monitor movements of Lost River and shortnose suckers and Redband trout through the Klamath Basin.

June 10, 2014

Water Temp Modeling Animation: Middle Fork Willamette River Reservoirs

CE-QUAL-W2 temperature model animation of Hills Creek, Lookout Point, and Dexter Reservoirs on the Middle Fork Willamette River. Data are modeled for calendar year 2011. For supporting information, see http://pubs.usgs.gov/of/2013/1186/. For supplemental and contact information, see

...
June 9, 2014

Water Temp Modeling Animation: Middle Fork Willamette

CE-QUAL-W2 temperature model animation of Hills Creek, Lookout Point, and Dexter Lakes on the Middle Fork Willamette River.

muddy confluence wilson river and cedar creek
February 19, 2014

Confluence of Cedar Creek with the Wilson River, OR

Confluence of Wilson River with tributary Cedar Creek, OR, following heavy storm.

Spectrogram from Central Pumice Cone Seismic Station, Newberry Volc...
December 5, 2013

Lake-Ice Quakes from Newberry Volcano

The popping and cracking of ice in lakes within the Newberry Volcano caldera is picked up by local seismic stations, such as Central Pumice Cone. The lake-ice quakes do not resemble standard volcanic low-frequency or high-frequency events and are sporadically observed in the winter at other ice-covered lakes in Yellowstone, Long Valley, and elsewhere.

Water running down a creek.
September 5, 2013

Lost Dog Creek

A turbid Lost Dog Creek tumbles down steep slopes before feeding Lake Oswego.

Tanner Creek outfall
September 5, 2013

Tanner Creek

Tanner Creek outfall delivers stormwater runoff with insecticides to Tanner Creek, tributary of the Willamette River

February 28, 2013

PubTalk 2/2013 — Is "THE IMPOSSIBLE" Possible in the Pacific Northwest

-- Coastal Community Tsunami Hazards and Risk

By Nathan Wood, Geographer

 

  • The movie "The Impossible", currently showing in theaters, portrays the destruction of the 2004 Indian Ocean tsunami
  • Recent tsunami disasters in the Pacific Ocean testify to their destructive power -- are similar events likely in the
...
Image: Sprague River Basin, Oregon
December 31, 2012

Sprague River Basin, Oregon

Climate change projections indicate a steady increase in temperature progressing through the 21st century, generally resulting in snowpack reductions, changes to the timing of snowmelt, altered streamflows, and reductions in soil moisture, all of which could affect water management, agriculture, recreation, hazard mitigation, and ecosystems across the nation.

...
snow-covered Mt. Hood volcano on the horizon overlooking tall building in city of Portland
December 31, 2012

Mount Hood

Mount Hood dominates the skyline outside Portland, Oregon on a clear day. A major eruption of Mount Hood would pose a great hazard to the regional economy.

Filter Total Items: 223
Image: Seth Moran, USGS Cascades Volcano Observatory
August 17, 2015

The U.S. Geological Survey is pleased to announce the selection of Dr. Seth Moran to serve as the new Scientist-in-Charge of the USGS Cascades Volcano Observatory. Moran succeeds John Ewert, who served in the position for the past five years. Moran took the helm on August 9.

Image: Elevation Field Work at Bandon Marsh
August 14, 2015

The U.S. Geological Survey and Oregon State University released a report this week examining Pacific Northwest tidal wetland vulnerability to sea level rise. Scientists found that, while vulnerability varies from marsh to marsh, most wetlands would likely be resilient to rising sea levels over the next 50-70 years.

USGS
August 4, 2015

A new study now underway by the U.S. Geological Survey is exploring the groundwater resources and geothermal energy potential in drought-stricken areas of eastern Oregon and nearby parts of California, Idaho and Nevada.

USGS
July 30, 2015

Twenty middle school girls from Washington and Oregon are participating in “GeoGirls,” an outdoor program jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute.

USGS science for a changing world logo
July 30, 2015

RESTON, Va.— The U.S. Geological Survey has awarded approximately $4 million this week to four universities – California Institute of Technology, University of California, Berkeley, University of Washington and University of Oregon – to support transitioning the “ShakeAlert” earthquake early warning system toward a production stage.

USGS
July 27, 2015

One winter's night in the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a nearby earthquake usually provides.

Image: U.S. Fish and Wildlife Service Vessel Seen Through Bird Flock
July 16, 2015

The U.S. Geological Survey today released the North Pacific Pelagic Seabird Database — a massive online resource compiling the results of 40 years of surveys by biologists from the United States, Canada, Japan and Russia. The database documents the abundance and distribution of 160 seabird and 41 marine mammal species over a 10 million-square-mile region of the North Pacific.

USGS
May 28, 2015

Ken Berg has been named the new director of the U.S. Geological Survey Forest and Rangeland Ecosystem Science Center, headquartered in Corvallis, Ore.

Volcano erupting and spewing a huge cloud of rock and ash into the sky.
May 13, 2015

May is Volcano Preparedness Month in Washington state, providing residents an opportunity to become more familiar with volcanic risk in their communities and learn about steps they can take to reduce potential impacts. This year, Volcano Preparedness Month coincides with the 35th anniversary of the May 18, 1980 catastrophic eruption of Mount St. Helens.

USGS
April 29, 2015

May 18th marks the 35th anniversary of the eruption of Mount St. Helens and the onset of volcanic activity from 1980 to 1986.  In commemoration, the U.S. Geological Survey Cascades Volcano Observatory will open its doors to the news media and the public on Saturday, May 2, 2015, from 10:00 a.m. to 5:00 p.m.

Image: Tsunami Evacuation Sign
April 13, 2015

Tens of thousands of people along the U.S. Pacific Northwest coastline may not have enough time to evacuate low-lying areas before tsunami waves arrive, according to a new publication by researchers at the U.S. Geological Survey, University of Colorado Boulder, and California State University, Sacramento.