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Data collected in 2008-2014 to assess nearshore subtidal community responses to increased sediment load during removal of the Elwha River dams, Washington State, USA Data are time series of substrate grain size, remotely sensed water column turbidity, and measures of abundance (e.g., density, percent cover) of the nearshore subtidal (3-17 m depth) benthic community (vegetation, invertebrates, and fish) collected before (2008-2011) and during dam removal (2012-2014). Categories: Data; Tags: Aquatic Biology, Benthos, Botany, Clallam County, Ecology, All tags... Elwha River, Geomorphology, Habitat alteration, Land Use Change, Marine Geology, Marine nearshore subtidal, Remote Sensing, Species diversity, Strait of Juan de Fuca, USGS Science Data Catalog (SDC), Water Quality, Fewer tags Dissolved Oxygen, temperature, particle-size distribution, and groundwater flux in the nearshore of Lake Ozette, WA, October 2018 to May 2019 This release contains data collected to study the impacts of vegetation removal on the condition of Lake Ozette Sockeye spawning habitat. From October 2018 to May 2019, continuous sediment temperature and subsurface dissolved oxygen were collected at sites near Olsen's Beach on the eastern shore of Lake Ozette, WA. Data were collected from 3 sites; a spawning control (SC) where sockeye currently return to spawn; a vegetation control (VC) where nearshore vegetation inhibits the amount of sockeye spawning; and a vegetation treatment (TR) area where nearshore vegetation was manually removed to assess if habitat quality can be improved. In addition to the continuous data, particle size data from the nearshore were determined... Tags: 1DTempPro, Clallam County, Hydrology, Lake Ozette, Olympic National Park, All tags... USGS Science Data Catalog (SDC), Washington State, Water Quality, Water Resources, downwelling, environment, grain-size analysis, groundwater and surface-water interaction, hydrology, inlandWaters, oxygen content (water), sediment temperature modeling, sediment vertical temperature profiles, specific discharge, upwelling, water temperature, Fewer tags Bathymetry and topography data from the Elwha River delta, Washington, May 2011 Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an integrated research program aimed at understanding the ecosystem responses following dam removal. The research program included repeated surveys of beach topography, nearshore bathymetry, and surface sediment grain size to quantify changes in delta morphology... Categories: Data; Tags: Clallam County, Elwha River, Geophysics, Olympic Peninsula, PCMSC, All tags... Strait of Juan de Fuca, Fewer tags Suspended sediment concentration data in the Elwha River, Washington, September 2011 to September 2016 This data release provides 15-minute data of suspended-sediment concentration and fine (less than 0.0625 mm) suspended-sediment concentration during the removal of 2 large dams on the Elwha River from September 2011 to September 2016. Data are derived from regression relations with turbidity at the USGS gaging station Elwha River at the Diversion (no.12046260). Categories: Data; Tags: CMPG, Clallam County, Coastal and Marine Geology Program, Elwha Dam (historical), Elwha River, All tags... Glines Canyon Dam (historical), Olympic National Park, PCMSC, Pacific Coastal and Marine Science Center, State of Washington, Substrate, U.S. Bureau of Reclamation, U.S. Geological Survey, USBR, USGS, field inventory and monitoring, inlandWaters, river bank, river channel, sediment deposition, sediment transport, stream discharge, Fewer tags Topography data from the Elwha River delta, Washington, August 2022 This part of the data release presents topography data from the Elwha River delta collected in August 2022. Topography data were collected on foot with global navigation satellite system (GNSS) receivers mounted on backpacks. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Vegetation and geomorphic surfaces in the Elwha River delta, Washington, after dam removal, derived from 2016 and 2018 aerial imagery and 2007, 2014, and 2018 field surveys Removal of two large dams from the Elwha River, Washington USA, in 2011-2014 released ~20.5 metric tons (Mt) of impounded sediment, ~5.4 Mt of which was deposited in the river delta and estuary. This dataset presents measurements of geomorphic surfaces, vegetation colonization, and plant community development in the Elwha River delta and estuary after dam removal. Geomorphic surfaces and vegetation colonization were estimated from aerial imagery of the delta and estuary in 2016 and 2018. Plant community development was quantified from field plot surveys of pioneer plant communities on new surfaces in 2014 and 2018 and of established delta and estuarine plant communities on older surfaces in 2007, 2014, and 2018.... Tags: Clallam County, Ecology, Elwha River, Geomorphology, Olympic Peninsula, All tags... Port Angeles, Remote Sensing, USGS Science Data Catalog (SDC), United States of America, Washington, biota, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, geospatial datasets, habitats, human impacts, human impacts on habitats, vegetation, 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 Subsurface dissolved Oxygen and sediment temperature at Lake Ozette, WA, October 2018 to May 2019 This dataset includes continuous dissolved oxygen and temperature data from the nearshore of Lake Ozette, WA. Data were collected using a HOBO (U26-001) dissolved oxygen/temperature sensor housed inside a self-contained PVC well screen installed to a depth of 15cm in the lakebed. Data was collected continuously from October 2018 to May 2019. This data was part of a project that studied the impact of removing nearshore vegetation on the quality of spawning habitat of native Lake Ozette sockeye. The study area consisted of 3 areas where dissolved oxygen and temperature were collected. A spawning control (SC) where sockeye currently return to spawn; a vegetation control (VC) where nearshore vegetation inhibits the... Categories: Data; Tags: Clallam County, Lake Ozette, Olympic National Park, Washington State, environment, All tags... groundwater and surface-water interaction, hydrology, inlandWaters, oxygen content (water), water temperature, Fewer tags Vegetation habitat units derived from 2014 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 28 August 2014 0.15-meter-resolution NPS Elwha PlaneCam aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2018 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta in July 2018 (USGS Field Activity Number 2018-648-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) and a kayak equipped with single-beam echosounders and survey-grade global navigation satellite systems (GNSS) receivers. Topographic data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization)... Tags: Bathymetry and Elevation, CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, August 2012 Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an integrated research program aimed at understanding the ecosystem responses following dam removal. The research program included repeated surveys of beach topography, nearshore bathymetry, and surface sediment grain size to quantify changes in delta morphology... Categories: Data; Tags: Clallam County, Elwha River, Geophysics, Olympic Peninsula, PCMSC, All tags... Strait of Juan de Fuca, Fewer tags Topobathymetric Model of Puget Sound, Washington, 1887 to 2017 To support the modeling of storm-induced flooding, the USGS Coastal National Elevation Database (CoNED) Applications Project has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for Puget Sound. Puget Sound is located along the northwestern coast of Washington and is part of the Salish Sea. Puget Sound is the third largest estuary in the United States. High-resolution coastal elevation data is required to identify flood, storm, and sea-level rise inundation hazard zones and other earth science applications, such as the development of sediment transport and storm surge models. The new TBDEM consists of the best available multi-source topographic and bathymetric elevation data for Puget... Tags: 3D Elevation Program, 3DEP, Acoustic Sonar, BC, Bathymetric, All tags... Bathymetry, British Columbia, CA, Canada, City of Seattle, Clallam County, CoNED, Coastal National Elevation Database, Coastal Washington, Coastal Zone, Coastal and Marine Geology Program, Digital Elevation Model, Flood Inundation Modeling, Geography, Geomorphology, Grays Harbor County, Hydrologic Modeling, Hydrology, Island County, Jefferson County, King County, Kitsap County, Lewis County, LiDAR, Light Detection and Ranging, Marine Geology, Mason County, National Standards for Spatial Digital Accuracy, Pierce County, Puget Sound, Remote Sensing, San Juan County, Skagit County, Snohomish County, Thurston County, Topobathymetric, U.S., U.S. Geological Survey, US, USA, USGS, USGS Science Data Catalog (SDC), United States, WA, Washington, Washington, Whatcom County, Fewer tags Surface-sediment grain-size distributions of the Elwha River delta, Washington, July 2017 This portion of the USGS data release presents sediment grain-size data from samples collected on the Elwha River delta, Washington, in July 2017 (USGS Field Activity Number 2017-638-FA). Surface sediment was collected on July 20, 2017 at a total of 80 locations using a small ponar, or 'grab', sampler from the R/V Frontier in water depths between about 1 and 17 m around the delta. An additional 31 samples were collected by hand at low tide. A handheld global satellite navigation system (GNSS) receiver was used to determine the locations of sediment samples. Grab samples that yielded less than 50 g of sediment were omitted from analysis. The grain-size distributions of samples that yielded more than 50 g of sediment... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, GPS (Global Positioning System), All tags... Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, Substrate, U.S. Geological Survey, USGS, grain-size analysis, ocean processes, oceans, sediment, sediment transport, sedimentation, 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 Nearshore bathymetry data from the Elwha River delta, Washington, July 2018, collected from personal watercraft This portion of the USGS data release presents bathymetric data collected during surveys performed on the Elwha River delta, Washington in 2018 (USGS Field Activity Number 2018-648-FA). Bathymetric data were collected using personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, bathymetry, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Vegetation habitat units derived from 2009 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 11 September 2009 1-meter-resolution NAIP aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Vegetation habitat units derived from 2013 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 26 August 2013 0.15-meter-resolution NPS Elwha PlaneCam aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Geomorphic habitat units derived from 2014 aerial imagery and elevation data for the Elwha River estuary, Washington Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 28 August 2014 0.15 meter resolution NPS Elwha PlaneCam aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (5-8 September 2014) for areas < MHHW and aerial lidar surveys (7 November 2014) supplemented with NPS Elwha PlaneCam SfM photogrammetry data (30 September 2014) for elevations > MHHW. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Geomorphic habitat units derived from 2009 aerial imagery and elevation data for the Elwha River estuary, Washington Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 11 September 2009 1 meter resolution NAIP aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (17 September 2009) for areas < MHHW and aerial lidar surveys (4-6 April 2009) for elevations > MHHW. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags 1 2 3 »