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Digital elevation models (DEMs) of the lower Elwha River, Washington, were created by synthesizing lidar and PlaneCam Structure-from-Motion (SfM) data. Lidar and still digital photographs were collected by airplane during surveys from 2012 to 2016. The digital photographs were used to create a SfM digital surface model. Each DEM represents the ending conditions for that water year (for example, the 2013 DEM represents conditions at approximately September 30, 2013). The final DEMs, presented here, were created from the most recent lidar before September 30 of a given year, supplemented with an error-corrected SfM model from a low-flow summer Elwha PlaneCam flight as close to 30 September as possible. This synthetic...
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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).
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This dataset presents 28 georeferenced orthomosaic images of the middle and lower reaches of the Elwha River. Each mosaic image was created by stitching together thousands of individual photographs that were matched based on numerous unique tie points shared by the photographs. The individual photographs were taken by a plane-mounted camera during multiple flights over the study area spanning 2012 to 2017. Because each mosaic is orthogonal to the earth's surface and is georeferenced to real-world coordinates, changes to the river channel and surrounding morphology can be seen and measured, including channel width, river braiding, bar formation, and other metrics to assess responses of the river to the removal of...
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Streamgage levels on the Elwha River were measured from 2011 to 2016. These measurements show the height of the river's water surface, both in meters relative to the stream bed, as well as in meters relative to vertical geographic coordinates. Measurements were collected using a Global Water WL16 battery-operated vented water level logger in a hardened casing. The instrument was installed on October 17, 2011 on the left bank of the Elwha River at a power line crossing above the Elwha Surface Water Intake (at approximately river kilometer 5.6), which is downstream of the (now historical) Elwha Dam site. Data collection ended May 12, 2016. The data were collected as part of a study investigating responses of the Elwha...
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Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the main and side channels (where accessible) of the Dresden reach June 4 – 28, 2018.
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Floodplain characteristics were quantified for the Elwha River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013. Each zipped folder contains a shapefile and its associated metadata record.
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The U.S. Army Corps of Engineers' Upper Mississippi River Restoration (UMRR) Program Long Term Resource Monitoring (LTRM) element has overseen the collection, processing, and serving of bathymetric data since 1989. A systemic data collection for the Upper Mississippi River System (UMRS) was completed in 2010. Water depth in aquatic systems is important for describing the physical characteristics of a river. Bathymetric maps are used for conducting spatial inventories of the aquatic habitat and detecting bed and elevation changes due to sedimentation. Bathymetric data is widely used, specifically for studies of water level management alternatives, modeling navigation impacts and hydraulic conditions, and environmental...
Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the West Pit of Hanson Pits (where accessible) of the Marseilles reach June 25-26, 2018.
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Daily values of discharge and sediment loads were measured and estimated at U.S. Geological Survey gaging station 12046260, on the Elwha River at the diversion near Port Angeles, Washington. Daily data are reported from September 15, 2011 to September 30, 2016. Specific data include (1) date; (2) discharge; (3) suspended-sediment concentration and one standard-deviation bounds; (4) percentage of fine-grained particles (silts and clays) in suspension; (5) loads of total suspended-sediment, fine-grained particles in suspension, and sand in suspension; (6) gauged bedload for particles between 2-16 mm and greater than 16 mm; and (7) estimated bedload for particles smaller than 2 mm.
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Floodplain characteristics were quantified for the Queets River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013. Each zipped folder contains a shapefile and its associated metadata record.
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This collection of maps shows fluvial geomorphic features of the Colorado River bottomland including river channel boundaries at high flow (31,300 cubic ft/sec on 06/28/2011 at the Cisco gage) and at lower flow (3,410 cubic ft/sec on 09/06/2010 at the Cisco gage). Also shown is the bottomland boundary delineating the currently active fluvial surface; the bottomland is subdivided by both reaches and bottomland kilometers for reference. Centerlines for the bottomland and 2010 river channel are included, also.
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This dataset presents elevation measurements of two dams on the Elwha River, Washington, during their removal processes from 2008 to 2013. Elevation measurements of the Elwha Dam were taken from October 2008 to March 2012. Elevation measurements of the Glines Canyon dam, which was further upstream than the Elwha Dam, were taken from October 2010 to October 2013. The measurements were taken by the U.S. Bureau of Reclamation as part of a study investigating the river channel's morphological responses to dam removal.
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Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the main and side channels (where accessible) of the Starved Rock reach August 24 – September 13, 2017, and May 23, 2018.
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Bedload sediment transport was calculated on the Elwha River, Washington to measure the amount of sediment transported along the riverbed during the 2016 water year. Bedload was measured using the Elwha bedload impact plate system (Hilldale and others, 2015). Physical bedload sampling by the U.S. Bureau of Reclamation for system calibration took place during November, 2012; March, May, and June 2013; and April 2014 at the Diversion Weir gauge (Magirl and others, 2015). Early in water year 2016 (year 5) the river formed an avulsion channel across the floodplain on river left, preventing a complete measurement of bedload passing the Diversion Weir gauge. As a result, bedload for water year 2016 (year 5 of the larger...
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Floodplain characteristics were quantified for the Hoh River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013. Each zipped folder contains a shapefile and its associated metadata record.
Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the Easst Pit of Hanson Pits (where accessible) of the Marseilles reach June 27, 2018.
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Floodplain characteristics were quantified for the Quinault River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013. Each zipped folder contains a shapefile and its associated metadata record.
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Sediment inputs to Lake Mills, on the Elwha River, Washington, were measured from 1927 to 2016. These measurements represent the annual total sediment load, in tonnes per year, that were input into Lake Mills and partially trapped by Glines Canyon dam. The sediment was allowed to erode and be transported down-river by the removal of the Glines Canyon and Elwha dams during 2011 to 2014. The measurements were taken as part of a study investigating the river channel's morphological responses to the removal of two large dams - the Elwha River and Glines Canyon dams.
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Pebble count data were collected during four summer surveys (2013, 2015, 2016 and 2017) at ten sites along the Carmel River, CA. Grain-size measurements were made at four to six transects per site using a 0.5 by 0.5 m sampling frame, with 100 counts per transect. Each transect was defined by coordinates on the left and right sides of the river, and grain sizes were measured at points between those endpoint coordinates (see accompanying file at https://www.sciencebase.gov/catalog/item/5a271f8ce4b03852bafc8eaa for transect endpoint coordinates). Grain-size diameters were measured using a gravelometer, where we recorded the largest sieve size on the gravelometer that an individual particle did not pass through, similar...


    map background search result map search result map Fluvial Geomorphic Features UMRR Alton Bathymetry Footprint Grain size data from the Carmel River, central California, 2013 to 2017 Digital elevation models (DEMs) of the lower Elwha River, Washington, water year 2013 to 2016 Orthomosaic images of the middle and lower Elwha River, Washington, 2012 to 2017 Elevations of the Elwha and Mills dams, Elwha River, Washington, 2008 to 2013 Streamgage measurements, Elwha River, Washington, 2011 to 2016 Upstream sediment contributions to Lake Mills on the Elwha River, Washington, 1926 to 2016 Suspended sediment concentration data in the Elwha River, Washington, September 2011 to September 2016 Monthly bedload estimates, Elwha River, Washington, October 2015 to September 2016 Daily sediment loads during and after dam removal in the Elwha River, Washington, 2011 to 2016 Floodplain data from the Hoh, Elwha, Queets, and Quinault Rivers in Olympic National Park, 1939-2013 Floodplain data from the Elwha River in Olympic National Park, 1939-2013 Floodplain data from the Hoh River in Olympic National Park, 1939-2013 Floodplain data from the Queets River in Olympic National Park, 1939-2013 Floodplain data from the Quinault River in Olympic National Park, 1939-2013 Illinois River, Dresden, Sidescan Image Mosaic June 2018 Illinois River, Hanson Pits,East Pit, Sidescan Image Mosaic, 2018 Illinois River, Hanson Pits,West Pit, Sidescan Image Mosaic, 2018 Illinois River, Starved Rock, Sidescan Image Mosaic, 2017-2018 Illinois River, Hanson Pits,East Pit, Sidescan Image Mosaic, 2018 Floodplain data from the Elwha River in Olympic National Park, 1939-2013 Illinois River, Hanson Pits,West Pit, Sidescan Image Mosaic, 2018 Floodplain data from the Quinault River in Olympic National Park, 1939-2013 Floodplain data from the Queets River in Olympic National Park, 1939-2013 Illinois River, Dresden, Sidescan Image Mosaic June 2018 Grain size data from the Carmel River, central California, 2013 to 2017 UMRR Alton Bathymetry Footprint Fluvial Geomorphic Features Floodplain data from the Hoh, Elwha, Queets, and Quinault Rivers in Olympic National Park, 1939-2013