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Final Report: The Influence of Fall Storms on Nest Densities of Geese and Eiders on the Yukon-Kuskokwim Delta of Alaska The Yukon-Kuskokwim Delta of Alaska is a globally important region for numerousavian species including millions of migrating and nesting waterbirds. Climate change effectssuch as sea level rise and increased storm frequency and intensity have the potential to impactwaterbird populations and breeding habitat. In order to determine the potential impacts of theseclimate-mediated changes, we investigated both short-term and long-term impacts of stormsurges to geese and eider species that commonly breed on the Yukon-Kuskokwim Delta. Todetermine short-term impacts, we compared nest densities of geese and eiders in relation to themagnitude of storms that occurred in the prior fall from 2000–2013. Additionally, we modeledgeese... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BIRDS, BIRDS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, DELTAS, All tags... DELTAS, DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, ENDANGERED SPECIES, ENDANGERED SPECIES, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOODS, FLOODS, Federal resource managers, HABITAT CONVERSION/FRAGMENTATION, HABITAT CONVERSION/FRAGMENTATION, INUNDATION, INUNDATION, LCC Network Science Catalog, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, Policy makers & regulators, Report, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, SPECIES LIFE HISTORY, SPECIES LIFE HISTORY, STORM SURGE, STORM SURGE, STORMS, STORMS, Tribes, USE/FEEDING HABITATS, USE/FEEDING HABITATS, WETLANDS, WETLANDS, Western Alaska Landscape Conservation Cooperative data.gov, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, environment, environment, oceans, oceans, Fewer tags Part I Summary: Predicting waterbird nest distributions This project evaluated the potential impacts of storm surges and relative sea level rise on nesting geese and eider species that commonly breed on the Yukon-Kuskokwim Delta (Y-K Delta). Habitat suitability maps for breeding waterbirds were developed to identify current waterbird breeding habitat and distributions. Short-term climate change impacts were assessed by comparing nest densities in relation to magnitude of storms that occurred in the prior fall from 2000-2013. Additionally, nest densities were modeled using random forests in relation to the time-integrated flood index (e.g., a storm specific measure accounting for both water depth and duration of flooding) for four modeled storms (2005, 2006, 2009, and... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BIRDS, BIRDS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, DELTAS, All tags... DELTAS, DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, ENDANGERED SPECIES, ENDANGERED SPECIES, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOODS, FLOODS, Federal resource managers, HABITAT CONVERSION/FRAGMENTATION, HABITAT CONVERSION/FRAGMENTATION, INUNDATION, INUNDATION, LCC Network Science Catalog, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, Policy makers & regulators, Report, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, SPECIES LIFE HISTORY, SPECIES LIFE HISTORY, STORM SURGE, STORM SURGE, STORMS, STORMS, Tribes, USE/FEEDING HABITATS, USE/FEEDING HABITATS, WETLANDS, WETLANDS, Western Alaska Landscape Conservation Cooperative data.gov, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, oceans, oceans, Fewer tags Webinar (2015 Oct 14) The Yukon-Kuskokwim Delta of Alaska is a globally important region for numerous avian species including millions of migrating and nesting waterbirds. Climate change effects such as sea level rise and increased storm frequency and intensity have the potential to impact waterbird populations and breeding habitat. In order to determine the potential impacts of these climate-mediated changes, we investigated both short-term and long-term impacts of storm surges to geese and eider species that commonly breed on the Yukon-Kuskokwim Delta.To do this, we used 29 years of ground-based surveys conducted as part of the U.S. Fish and Wildlife Service’s long-term waterbird monitoring program along with flood indices modeled... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BIRDS, BIRDS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, DELTAS, All tags... DELTAS, DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, ENDANGERED SPECIES, ENDANGERED SPECIES, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOODS, FLOODS, Federal resource managers, HABITAT CONVERSION/FRAGMENTATION, HABITAT CONVERSION/FRAGMENTATION, INUNDATION, INUNDATION, LCC Network Science Catalog, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, Policy makers & regulators, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, SPECIES LIFE HISTORY, SPECIES LIFE HISTORY, STORM SURGE, STORM SURGE, STORMS, STORMS, Tribes, USE/FEEDING HABITATS, USE/FEEDING HABITATS, WETLANDS, WETLANDS, Western Alaska Landscape Conservation Cooperative data.gov, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, oceans, oceans, presentation, Fewer tags 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 LiDAR Derived Watershed Boundaries for Rainwater Basin Wetlands ESRI file geodatabase containing LiDAR derived watershed boundaries for Rainwater Basin Wetalnds. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Data, Federal resource managers, GPLCC, GPLCC, Great Plains, All tags... Great Plains Landscape Conservation Cooperative, Habitat Modeling, Habitat Modeling, LCC Network Science Catalog, LiDAR, LiDAR, Nebraska, Playas, Playas, Regional & county planners, Remote Sensing, Remote Sensing, SEDIMENTATION, Sediment Accumulation, Sediment Accumulation, State agencies, WETLANDS, Wetlands, Wetlands, completed, data.gov Great Plains LCC, environment, geoscientificInformation, inlandWaters, Fewer tags Mores Creek Arm Bathymetric Survey - Depth Contours, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Boise, GPS measurement, Hypack, Hysweep, ID, All tags... Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, USA, United States, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Static chamber gas fluxes and carbon and nitrogen isotope content of age-dated sediment cores from a Phragmites wetland in Sage Lot Pond, Massachusetts, 2013-2015 Coastal wetlands are major global carbon sinks, however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, static chamber measurements of greenhouse gas (GHG) fluxes were compared among major plant-defined zones (high marsh dominated by Distichlis spicata and a zone of invasive Phragmites australis) during 2013 and 2014 growing seasons. Two sediment cores were collected in 2015 from the Phragmites zone to support previously reported core collections from the high marsh sites (Gonneea and others 2018). Collected cores were up to 70 cm in length with dry bulk density ranges from 0.04 to 0.33 grams per cubic centimeter and carbon content 22.4%... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 137-cesium, 210-lead, Cape Cod (606914), Commonwealth of Massachusetts (606926), Constant Rate of Supply (CRS) model, All tags... Ecology, Masphee (615624), Sage Lot Pond (616458), United States of America, accretion rate, age model, biota, carbon, carbon burial, carbon isotope analysis, coastal processes, ecological processes, ecological restoration, elevation, environment, geoscientificInformation, inlandWaters, invasive species, location, nitrogen, oceans, piston coring, plot sampling, radiometric dating, salt marshes, sea-level change, sedimentation, soil chemistry, wetland ecosystems, wetland functions, wetland soils, wetlands, Fewer tags The impacts of storm surges on breeding waterbirds on the Yukon-Kuskokwim Delta, Alaska: past effects and future projected impacts This project evaluated the potential impacts of storm surges and relative sea level rise on nesting geese and eider species that commonly breed on the Yukon-Kuskokwim Delta (Y-K Delta). Habitat suitability maps for breeding waterbirds were developed to identify current waterbird breeding habitat and distributions. Short-term climate change impacts were assessed by comparing nest densities in relation to magnitude of storms that occurred in the prior fall from 2000-2013. Additionally, nest densities were modeled using random forests in relation to the time-integrated flood index (e.g., a storm specific measure accounting for both water depth and duration of flooding) for four modeled storms (2005, 2006, 2009, and... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, Decision Support, All tags... ENDANGERED SPECIES, ENDANGERED SPECIES, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOODS, FLOODS, Federal resource managers, INUNDATION, INUNDATION, LCC Network Science Catalog, Map, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, Policy makers & regulators, Population & Habitat Evaluation/Projection, Presentation, Project, Publication, Report, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, SPECIES LIFE HISTORY, SPECIES LIFE HISTORY, STORM SURGE, STORM SURGE, Tribes, USE/FEEDING HABITATS, USE/FEEDING HABITATS, Vulnerability Assessment, WETLANDS, WETLANDS, biota, biota, completed, environment, environment, Fewer tags Summary handout - Factsheet A high spatial resolution storm surge model was developed for the YK Delta area to assess biological impacts of storm surges under current and future climates. Storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme.The model was assessed with respect to measured water level data at the coast and, where available, spatial extent of inundation, for 6 storms from the period 1992 to 2011. In total, inundation projections from 9 historical storms (5 from the assessment + 4 others) were developed. For each storm, an spatial inundation index (time-integral of water... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ARCHAEOLOGICAL AREAS, ARCHAEOLOGICAL AREAS, Academics & scientific researchers, COASTAL AREAS, COASTAL AREAS, All tags... COASTAL HABITAT, COASTAL HABITAT, COASTAL LANDFORMS/PROCESSES, COASTAL LANDFORMS/PROCESSES, CONSERVATION, CONSERVATION, CULTURAL FEATURES, CULTURAL FEATURES, DELTAS, DELTAS, DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOOD PLAIN, FLOOD PLAIN, FLOODING, FLOODING, FLOODS, FLOODS, FLOODS, FLOODS, Federal resource managers, HAZARD MITIGATION/PLANNING, HAZARD MITIGATION/PLANNING, INLETS, INLETS, INUNDATION, INUNDATION, LACUSTRINE WETLANDS, LACUSTRINE WETLANDS, LANDSCAPE PROCESSES, LANDSCAPE PROCESSES, LCC Network Science Catalog, LOCAL SUBSIDENCE TRENDS, LOCAL SUBSIDENCE TRENDS, MARSHES, MARSHES, MODELS, MODELS, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, PEATLANDS, PEATLANDS, PERMAFROST, PERMAFROST, SALINITY, SALINITY, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, STORM SURGE, STORM SURGE, STORM SURGE, STORM SURGE, STORMS, STORMS, Tribes, VEGETATION, VEGETATION, VEGETATION COVER, VEGETATION COVER, VULNERABILITY LEVELS/INDEX, VULNERABILITY LEVELS/INDEX, Western Alaska Landscape Conservation Cooperative data.gov, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, elevation, elevation, environment, environment, factSheet, geoscientificInformation, geoscientificInformation, oceans, oceans, Fewer tags Exposure potential of salt marsh units in Edwin B. Forsythe National Wildlife Refuge to environmental health stressors Natural and anthropogenic contaminants, pathogens, and viruses are found in soils and sediments throughout the United States. Enhanced dispersion and concentration of these environmental health stressors in coastal regions can result from sea level rise and storm-derived disturbances. The combination of existing environmental health stressors and those mobilized by natural or anthropogenic disasters could adversely impact the health and resilience of coastal communities and ecosystems. This dataset displays the exposure potential to environmental health stressors in the Edwin B. Forsythe National Wildlife Refuge (EBFNWR), which spans over Great Bay, Little Egg Harbor, and Barnegat Bay in New Jersey, USA. Exposure... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic Ocean, Barnegat Bay, Edwin B. Forsythe National Wildlife Refuge, Great Bay, Little Egg Island, All tags... New Jersey, United States, coastal ecosystems, coastal processes, contaminant transport, contamination, ecological processes, ecotoxicology, environment, environmental assessment, estuary, facility registry service, inlandWaters, marsh health, oceans, polygon shapefile, resilience, salt marsh, sediment, sedimentation, toxic release inventory, vegetation, vulnerability, wetland ecosystems, wetland functions, Fewer tags Field estimated floodplain and bank flux and toolbox geomorphic metrics for field sites in Difficult Run, VA A cvs file containing field datasets used to develop regression models to predict sediment and nutrient retention services for stream within the Difficult Run watershed. Field measurements of floodplain deposition and bank erosion were provided in previously published datasets from Hupp et al. (2013) and Gellis et al. (2017). At each field site 3-5 nearby cross-sections from the Toolbox where used to represent the floodplain and streambank sampling locations at the field sites. Metrics derived from the Toolbox are provided in this data table. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Difficult Run, Fairfax County, Flood plains, Fluvial morphology, Virginia, All tags... bulk density, geomorphology, inlandWaters, nitrogen, phosphorus, sedimentation, Fewer tags Bathymetric Data Collection for Larimore Dam in North Dakota, August 2020 Data were collected in August, 2020 to support development of a bathymetric map for Larimore Dam in Grand Forks County, North Dakota. Global Navigation Satellite System (GNSS) surveying equipment was used in static and real-time kinematic (RTK) mode to establish a local reference mark and check-in/check-out point, to collect water surface elevations, and to collect topographic points along established data collection transects. Topographic points were collected on land, in water too shallow for boating, and in areas of the lake where thick aquatic vegetation prohibited use of an echosounder and transducer. In areas of the lake deep enough for boating and where aquatic vegetation was not present, depth data was collected... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry, Grand Forks County, Larimore Dam, Limnology, North Dakota, All tags... Sedimentation, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Part 4 – Photographs of sediment cores collected in 2018 from Lake Powell, Utah This section of the data release includes core images in the format of photos (JPG) that have been compressed into a zipped file (2018LakePowellCoring_CorePhotos.zip). It is Part 4 (of four) in this data release and contains images of the cleaned archival half from split cores as they appeared immediately after splitting (late March and early April 2019). Each photo includes a ruler (in centimeters) and X-Rite ColorChecker Classic color correction card that may be used for corrections. Drillhole information, such as location and total recovery, are outlined in “Part 1 – Drillhole information from the 2018 coring project in Lake Powell, Utah” (2018LakePowellCoring_DrillholeInfo.csv) of this data release. Each drillhole... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Animas River, Antelope Canyon, Bears Ears National Monument, Bullfrog, Bullfrog Bay, All tags... Canyonlands National Park, Capitol Reef National Park, Castle Butte, Cataract Canyon, Cha Bay, Cha Canyon, Coconino County, Colorado River, Dangling Rope, Deep Canyon, Dirty Devil River, Escalante River, Farley Canyon, Fourmile Canyon, Friendship Bay, Garfield County, Glen Canyon Dam, Glen Canyon National Recreation Area, Gold King Mine, Good Hope Bay, Grand Staircase-Escalante National Monument, Great Bend, Gunsight bay, Halls Bay, Halls Crossing, Hite, Hole in the Rock, Kane County, Lake Powell, Last Chance Bay, Mexican Hat, Monument Valley, Narrow Canyon, Navajo Canyon, Neshkahi Wash, North Wash, Padre Bay, Page, Piuite Canyon, Piute Farms Wash, Piute Mesa, Piute Wash, Rainbow Bridge National Monument, Reflection Canyon, Rincon, Rock Creek Bay, San Juan County, San Juan River, Silverton, State of Arizona, State of Utah, The Horn, Trachyte Canyon, Twomile Canyon, United States of America, Wahweap, Wahweap Bay, Warm Creek Bay, White Canyon, Wilson Mesa, Zahn Bay, bathymetry, bedforms, bulk density, clay deposits, contaminant transport, contamination and pollution, core analysis, dissolved metals, drilling and coring, field inventory and monitoring, geomorphology, gravel deposits, groundwater and surface-water interaction, hazards, human environmental safety, hydrogeology, hydrologic processes, hydrology, image analysis, industrial pollution, lakebed characteristics, lidar, limnology, magnetic susceptibility analysis, mine drainage, mine waste, national centers, partnerships, photography, piston coring, recreation, remediation, resistivity, rotary coring, sample repositories, sand deposits, sedimentation, sedimentology, sediment transport, soil horizons, spectrophotometry, stratigraphic sections, stratigraphic thickness, stratigraphy, stream-gage measurement, streamflow, surface-water level, surface water (non-marine), surface water quality, suspended material, toxic trace element contamination, turbidity, unconsolidated deposits, water circulation, water resources, water supply and demand, Fewer tags Collection, analysis, and age-dating of sediment cores from mangrove wetlands in San Juan Bay Estuary, Puerto Rico, 2016 The San Juan Bay Estuary, Puerto Rico, contains mangrove forests that store significant amounts of organic carbon in soils and biomass. There is a strong urbanization gradient across the estuary, from the highly urbanized and clogged Caño Martin Peña in the western part of the estuary, a series of lagoons in the center of the estuary, and a tropical forest reserve (Piñones) in the easternmost part with limited urbanization. We collected sediment cores to determine carbon burial rates and vertical sediment accretion from five sites in the San Juan Bay Estuary. Cores were radiometrically-dated using lead-210 and the Plum age model. Sites had soil C burial rates ranging from 50 grams per meter squared per year (g m-2... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 137-cesium, 210-lead, Caño de Martín Peña (1613013), Commonwealth of Puerto Rico (1779808), Geochemistry, All tags... Laguna La Torrecilla (1611340), Laguna San José (1611343), Laguna de Pinoñes (1611336), Plum age model, San Juan (1612697), United States of America (1890467), accretion rate, age model, carbon, carbon burial, carbon isotope analysis, ecological restoration, environment, geoscientificInformation, health, mangrove sediments, nitrogen, oceans, radiometric dating, sea-level change, sedimentation, soil chemistry, utilitiesCommunication, wetland ecosystems, wetland soils, wetlands, Fewer tags Backwater Sedimentation in Navigation Pools 4 and 8 of the Upper Mississippi River data Transects in backwaters of Navigation Pools 4 and 8 of the Upper Mississippi River (UMR) were established in 1997 to measure sedimentation rates. Annual surveys were conducted from 1997-2002 and then some transects surveyed again in 2017-18. Changes and patterns observed were reported on in 2003 for the 1997-2002 data, and a report summarizing changes and patterns from 1997-2017 will be reported on at this time. Several variables are recorded each survey year and placed into an Excel spreadsheet. The spreadsheets are read with a SAS program to generate a SAS dataset used in SAS programs to determine rates, depth loss, and associations between depth and change through regression. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Erosion, Mississippi River, Navigational Pool, Sedimentation, USGS Science Data Catalog (SDC), All tags... Upper Mississippi River, biota, none, Fewer tags Lake Koocanusa Maximum and Minimum Pool Elevation Contours, Lincoln County, Montana In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: GPS measurement, Hypack, Hysweep, Kootenai, Kootenai-Pend Oreille-Spokane, All tags... Lincoln, Montana, Multibeam sonar, Pacific Northwest, United States, Upper Kootenai, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, lidar, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Mores Creek Arm Bathymetric Survey - Depth DEM, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Boise, GPS measurement, Hypack, Hysweep, ID, All tags... Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, USA, United States, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Surface-sediment grain-size distributions from the Elwha River delta, Washington, July 2015 This portion of the USGS data release presents sediment grain-size data from on the Elwha River delta, Washington in July and August, 2015 (USGS Field Activities 2015-648-FA and 2015-652-FA). Bed sediment was sampled using a small ponar, or 'grab', sampler on July 28, 2016 from the R/V Frontier at a total of 70 locations in water depths between approximately 1 and 17 m around the delta. An additional 17 samples were obtained by SCUBA divers between July 22 and August 23, 2015 using a 15 cm diameter push corer inserted into the seabed as far as possible to a maximum depth of 15 cm. Forty-eight samples were collected at low tide at intertidal locations on the delta. The locations of grab samples and intertidal samples... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clallam County, Elwha River, GPS (Global Positioning System), Global Positioning System (GPS) observations, Olympic Peninsula, All tags... Strait of Juan de Fuca, Substrate, grain-size analysis, ocean processes, oceans, sediment, sediment transport, sedimentation, Fewer tags Publication Summary: Evaluating the Long-term Impacts of Land Cover, Climate, and Buffer Condition Change on Sediment Delivery and Playa Storage Volume Summary of project, results, and discussion for the study completed by Mark W. Bowen and William C. Johnson. Summary written by the Great Plains Landscape Conservation Cooperative (GP LCC). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Colorado, Federal resource managers, GPLCC, GPLCC, All tags... Great Plains, Great Plains, Great Plains Landscape Conservation Cooperative, Habitat Management, Habitat Management, Kansas, Kansas, LCC Network Science Catalog, Nebraska, Nebraska, New Mexico, New Mexico, Oklahoma, Oklahoma, Playas, Playas, Regional & county planners, Report, SEDIMENTATION, ScienceBase Great Plains LCC, Sediment Accumulation, Sediment Accumulation, State agencies, Texas, Texas, WETLANDS, Wetlands, Wetlands, Wyoming, Wyoming, completed, environment, environment, inlandWaters, inlandWaters, Fewer tags Concentrations of Per- and Polyfluoroalkyl Substances (PFAS) in Lake-Bottom Sediments of Ashumet Pond on Cape Cod, Massachusetts, 2020 (ver. 2.0, February 2024) Lake-bottom sediment and associated quality-control samples were collected in August 2020 from one coring location (U.S. Geological Survey station 413756070321301, ASHUMET POND, MASHPEE MI-ASHPD-0011) in Ashumet Pond downgradient from a former fire-training area on Cape Cod, Massachusetts. The core was collected to determine if per- and polyfluoroalkyl substances (PFAS) were present in the bottom sediments of a lake known to have elevated concentrations of PFAS in surface water and groundwater (Tokranov and others, 2021), and whether the sediments could act as a continuous source of PFAS to the lake. Processing the sediment core entailed collection of discrete samples at intervals ranging from 1-5 centimeters (cm)... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cape Cod, Eastern United States, Environmental Health, Falmouth, Hydrology, All tags... Mashpee, Massachusetts, PFAS, Sandwich, Sedimentology, USGS Science Data Catalog (SDC), Water Quality, chemical analysis, environment, grain-size analysis, hydrogeology, limnology, radiometric dating, sedimentation, vibracoring, Fewer tags 1 2 3 4 »