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Characterization of seafloor photographs near the mouth of the Elwha River during the first two years of dam removal (2011-2013) We characterized seafloor sediment conditions near the mouth of the Elwha River from underwater photographs taken every four hours from September 2011 to December 2013. A digital camera was affixed to a tripod that was deployed in approximately 10 meters of water (Tripod location from September 2011 to April 2013: 48.15333, -123.55931; tripod location from April 2013 to December 2013: 48.15407, -123.55444). Each photograph was qualitatively characterized as one of six categories: (1) base, or no sediment; (2) low sediment; (3) medium sediment; (4) high sediment; (5) turbid; or (6) kelp. For base conditions, no sediment was present on the seafloor. Low sediment conditions were characterized by a light dusting of... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clallam County, Elwha River, Olympic Peninsula, Remote Sensing, State of Washington, All tags... Strait of Juan de Fuca, dam removal, oceans, photography, sediment, sedimentation, sedimentation, substrate, time series datasets, underwater photography, Fewer tags Sediment bioassay toxicity data from the Upper Columbia River, Washington, 2013-2014 This data release contains bioassay data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from in and around the Upper Columbia River in the fall of 2013. Toxicity testing was conducted from fall 2013 through summer 2014 with the amphipod, Hyalella azteca, the midge Chironomus dilutus, and the mussel Lampsilis siliquoidea. Short-term toxicity endpoints (10-28 d) included survival, weight, and biomass of all test organisms. Long-term tests with amphipods (42 d) and midges (about 50 d) included reproduction endpoint. These data are intended to be used to characterize concentration-response relationships between metals concentrations... Categories: Data; Types: Citation; Tags: Columbia Environmental Research Center, Sediment toxicity, State of Washington, Upper Columbia River, Washington Water Science Center, All tags... benthic invertebrates, chemical analysis, environmental health, natural resource damage assessment, toxic metals, Fewer tags Fish abundance in the Elwha River estuary, Washington, from 2006 to 2014 This portion of the data release presents fish abundance data from samples collected in the Elwha River estuary, Washington, in 2006, 2007, 2013, and 2014 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We used the Puget Sound beach seining protocol (Simenstad and others, 1991) to sample fish populations in the Elwha River estuary complex. The beach seine was 38 m long x 2 m deep, with a 2 m x 2 m bag in the center of the net; mesh size was 3.18 mm, 6.35 mm, and 31.75 mm, for the bag, center panel, and wings, respectively. The seine net was deployed from bank to bank by a small skiff and then pulled on shore. The number of... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... biota, fish, fish, fish, fishes, oceans, species diversity, Fewer tags Terrestrial invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013. This portion of the data release presents terrestrial invertebrate abundance data from samples collected in emergent and shrub vegetation along the edge of the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We deployed terrestrial insect fallout traps at ten locations in the east estuary, five replicates each in shrub and emergent (littoral) vegetation habitats. Clear, rectangular traps (2,400 cm2 in 2007 and 3,526 cm2 in 2013) were filled with 5 cm of filtered soapy water and deployed for 72 hours. Invertebrate counts from 2013 were standardized to the 2007 bin size to account... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... animals/invertebrates, biota, invertebrates, invertebrates, invertebrates, oceans, species diversity, Fewer tags Sediment grain size and digital image calibration parameters from the mouth of the Columbia River, Oregon and Washington, 2014 This portion of the data release provides the data used to develop the calibration equation for the images in Digital seafloor images and sediment grain size from the mouth of the Columbia River, Oregon and Washington, 2014 for the estimate of median grain size. This dataset includes 63 still images extracted from digital video imagery of sediment grab samples along with laboratory grain size analysis of the sediment grab samples taken from the mouth of the Columbia River, OR and WA, USA. Still images were extracted from video footage whenever the camera was resting on the sediment sample and individual sediment grains were visible and in focus. The images were used to calculate the calibration curve through auto-correlation... Categories: Data; Types: Citation; Tags: Columbia River, State of Oregon, State of Washington, Substrate, estuarine processes, All tags... geology, geoscientificInformation, geospatial datasets, marine sediments, oceans, sediment, sediment transport, sediment transport, underwater photography, video observation, videography, Fewer tags Riparian vegetation abundance (percent cover) in the Elwha River estuary, Washington, in 2007 and 2014 This portion of the data release presents riparian plant species abundance (percent cover) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meter, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants within... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, State of Washington, All tags... Strait of Juan de Fuca, United States of America, dam removal, environment, estuary, geoscientificInformation, river, vegetation, wetland ecosystems, Fewer tags Riparian vegetation species richness in the Elwha River estuary, Washington, in 2007 and 2014 This portion of the data release presents riparian plant species richness (number of unique taxa) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meters, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, State of Washington, All tags... Strait of Juan de Fuca, United States of America, dam removal, environment, estuary, geoscientificInformation, river, species richness, vegetation, wetland ecosystems, Fewer tags Physical, chemical and bioassay data from an evaluation of metal-contaminated sediments and pore water from the Upper Columbia River, Washington, 2013-2014 This data release contains chemistry and toxicity data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from in and around the Upper Columbia River in the fall of 2013. Toxicity testing was conducted from fall 2013 through summer 2014 with the amphipod, Hyalella azteca, the midge Chironomus dilutus, and the mussel Lampsilis siliquoidea. Short-term toxicity endpoints (10-28 d) included survival, weight, and biomass of all test organisms. Long-term tests with amphipods (42 d) and midges (about 50 d) included reproduction endpoint. Sediments were analyzed for physical and chemical characteristics, including particle size distribution,... Types: Citation; Tags: Columbia Environmental Research Center, Sediment toxicity, State of Washington, USGS Science Data Catalog (SDC), Upper Columbia River, All tags... Washington Water Science Center, benthic invertebrates, chemical analysis, environmental health, natural resource damage assessment, toxic metals, Fewer tags Sediment grain size in the Elwha River estuary, Washington, from 2013 and 2014. This portion of the data release presents sediment grain-size data from samples collected in the Elwha River estuary, Washington, in July 2013 and June 2014 (USGS Field Activities L-15-13-PS and 2014-628-FA). Surface sediment was collected from one location in 2013 and five locations in 2014 using a using a push core. The locations of grab samples were determined with a hand-held global positioning system (GPS). The cores were split into one- to three-centimeter sections. The grain-size distributions of samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. Size fractions are defined as gravel (> 2 mm), sand (63 micron to 2 mm), silt (4 micron... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... grain-size analysis, oceans, sediment, sediment transport, sedimentation, substrate, Fewer tags Aquatic invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013 This portion of the data release presents aquatic invertebrate abundance data from samples collected in the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). Replicate benthic samples were collected at 18 locations throughout the estuary complex using a petite Ponar grab sampler (appx. 2400 mL sample) and sorted through a 500-micron sieve. Samples were fixed in 10 percent formalin for 3 to 5 days before being transferred to 70 percent ethanol until processing. Individuals were identified to the lowest possible taxonomic resolution, but are grouped according to insect Orders in... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... animals/invertebrates, biota, invertebrates, invertebrates, invertebrates, oceans, species diversity, Fewer tags Oceanographic measurements obtained offshore of the Elwha River delta in coordination with the Elwha River Restoration Project, Washington, USA, 2010-2014 (version 1.1, May 2018) First Release: Aug 2017 Revised: May 2018 (ver. 1.1) Time-series data of velocity, pressure, turbidity, conductivity, and temperature were collected near the mouth of the Elwha River, Washington, USA, from December 2010 through October 2014, for the Department of Interior’s Elwha River Restoration project. As part of this project, the U.S. Geological Survey studied the effects of renewed sediment supplies on the coastal ecosystems before, during, and following the removal of two dams, Elwha and Glines Canyon, from the Elwha River. Removal of the dams reintroduced sediment stored in the reservoirs to the river, and the river moved much of this sediment to the coast. Several benthic tripods were instrumented with... Categories: Data, Data Release - Revised; Types: Citation; Tags: CMGP, CONDUCTIVITY, CTD, CTD measurement, CURRENT METERS, All tags... Clallum County, Coastal and Marine Geology Program, Elwha River, Geophysics, Marine Geology, OCEAN CURRENTS, Oceans, PCMSC, PRESSURE SENSORS, Pacific Coastal and Marine Science Center, Puget Sound, SALINITY, SEDIMENT TRANSPORT, State of Washington, U.S. Geological Survey, USGS, WATER DEPTH, WATER PRESSURE, WATER TEMPERATURE, WAVE HEIGHT, WAVE HEIGHT GAUGES, geoscientificInformation, ocean waves, physical oceanography, time series datasets, water level measurements, wave observations, Fewer tags Digital seafloor images and sediment grain size from the mouth of the Columbia River, Oregon and Washington, 2014 Geo-referenced digital imagery of in-situ seafloor sediments in the mouth of the Columbia River was collected and analyzed to determine median grain size of the surface sediments. Digital imagery of the seafloor was collected with a “flying eyeball” (Rubin and others, 2007) from the R/V Parke Snavely from September 11 to September 13, 2014 (USGS Field Activity 2014-642-FA). The flying eyeball consists of a standard definition plumbing inspection video camera and LED light ring inserted in a 50 kg wrecking ball. The video camera has a resolution of 480 by 720 pixels with a resolution of 0.009 mm/pixel when the target is flush against the exterior surface of the lens. Sample locations were chosen to allow for the... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Columbia River, Marine Geology, State of Oregon, State of Washington, Substrate, All tags... estuarine processes, geology, geoscientificInformation, geospatial datasets, marine sediments, oceans, sediment, sediment transport, sediment transport, underwater photography, video observation, videography, Fewer tags Sediment deposition in the Elwha River estuary, Washington, measured on rod surface elevation tables (RSETs) from 2011 to 2014 This portion of the data release presents sediment deposition in the estuary as measured using rod surface elevation tables (RSETs) at fifteen locations throughout the Elwha River estuary, Washington, from August 2011 to June 2014 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). The locations of the RSETs were determined with a hand-held global positioning system (GPS). We measured sediment deposition from 2011 to 2013 using the RSET table and pins at 36 points around each RSET. Because of extensive sediment deposition in the estuary, we needed to modify our methodology in 2014. We fabricated a new attachment for the RSET base... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... gravel deposits, oceans, sand deposits, sediment, sedimentation, sedimentation, substrate, Fewer tags Physical and chemical data from an evaluation of metal-contaminated sediments and pore water from the Upper Columbia River, Washington, 2013-2014 This data release contains physical and chemical data from an evaluation of metal contaminated sediments and pore water conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from in and around the Upper Columbia River in the fall of 2013. Sediments were analyzed for physical and chemical characteristics, including particle size distribution, total organic carbon, acid volatile sulfide, slag content, and concentrations of metals in total-recoverable and simultaneously-extracted fractions. Porewaters were separated by centrifugation and by peepers (diffusion samplers) and were analyzed for filterable metals, dissolved organic carbon, and major ions. These data are intended... Categories: Data; Types: Citation; Tags: Columbia Environmental Research Center, Sediment toxicity, State of Washington, Upper Columbia River, Washington Water Science Center, All tags... benthic invertebrates, chemical analysis, environmental health, natural resource damage assessment, toxic metals, Fewer tags Multibeam bathymetry and acoustic backscatter data collected in 2016 for Lake Crescent, Olympic National Park, Washington In February 2016 the U.S. Geological Survey, Pacific Coastal and Marine Science Center in cooperation with North Carolina State University and the National Park Service collected multibeam bathymetry and acoustic backscatter data in Lake Crescent located in Olympic National Park, Washington. These data were collected to support geologic hazard studies within the lake including mapping submarine landslides and faulting. Data were collected using a Reson 7111 multibeam echosounder pole-mounted to the 36-foot USGS R/V Parke Snavely. This USGS data release provides the processed bathymetry data in ASCIIRaster format, the acoustic backscatter data in TIFF format, as well as PDF maps of shaded relief bathymetry and acoustic... Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry, Bathymetry and Elevation, CMGP, Geology, All tags... Lake Crescent, Multibeam sonar, Olympic National Park, Pacific Coastal and Marine Science Center, Seafloor Topography, State of Washington, U.S. Geological Survey, USGS, environment, geoscientificInformation, imageryBaseMapsEarthCover, inlandWaters, lake bed, sea-floor acoustic reflectivity, Fewer tags