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Filters: partyWithName: Washington Water Science Center (X) > Types: OGC WMS Service (X) > partyWithName: Scott W Anderson (X)

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The White River is a dynamic gravel-bedded system in western Washington, with headwaters on Mount Rainier. Chronic aggradation in the lower river has reduced flood conveyance to a point where modest discharges are increasingly causing substantial flood damage. In order to better understand the dynamics governing this aggradation, and how aggradation rates may be influenced by forecasted changes in climate, the USGS conducted a broad study looking at the watershed-scale delivery and routing of coarse sediment (sand and gravel). Those results have been published in a GSA Bulletin journal article (https://doi.org/10.1130/B35530.1). This data release consists of supporting data used in that product, and includes Grain...
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This data release summarizes suspended sediment monitoring results on the Chehalis (USGS 12031000), Satsop (USGS 12035000) and Wynoochee (USGS 12037400) Rivers between water years 2019 and 2022. Sediment monitoring was based on a combination of continuous turbidity records and discrete suspended-sediment concentration (SSC) measurements. Data and results for each monitoring station were combined into zip files. Each zip file contains 1) summarized SSC measurements used in model calibration, 2) a detailed model archive summary documenting the process used to estimate SSC at 15-minute intervals, and 3) full 15-minute estimates of SSC and suspended loads between Oct. 1, 2018 and Sept 30, 2022. Metadata files within...
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The rock type, or lithology, of river gravels provides information about the bedrock source area of that material, and can act as a tracer to help assess relative gravel contributions from tributaries or distinct valley deposits. Between July 2020 and August 2021, gravels at 29 sites in the Sauk, Suiattle and White Chuck rivers were collected and sorted into simple lithologic categories. The data release here provides a summary of those raw data. These data support analyses presented in Anderson et al. (2022). Each row of the attached comma-separated value (CSV) file reports masses, in kilograms, of gravel in various lithologic categories for a given sample. Each sample consisted of 25-30 kg of gravel with intermediate-axis...
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The Pilchuck Dam, a low-head dam previously used for water-supply diversion in Snohomish County, Washington was removed from the Pilchuck River in the summer of 2020 after having blocked upstream fish migration for over a century. That removal effort was led by the Tulalip Indian Tribe; the USGS, in collaboration with the tribe, monitored sediment evacuation from the impoundment and downstream channel response over the year after the removal. Monitoring efforts included repeat cross sections, stage monitoring, and time lapse photography. This data release includes those raw data and summarizes their collection and processing. The data release includes three zip files, containing multiple files associated with each...
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This data release contains time series data of suspended-sediment concentration and loads determined at five USGS streamgages in the Nooksack River Basin, Whatcom County, Washington: Nooksack River at Ferndale (12213100), Nooksack River at North Cedarville (12210700), North Fork Nooksack River below Cascade Creek near Glacier (12205000 ), Middle Fork Nooksack River near Deming (12208000), and South Fork Nooksack River at Saxon Road (12210000). For each streamgage, a 15- or 60-minute time series of suspended sediment concentration are computed from turbidity-based regression equations, and daily suspended sediment loads are calculated as the product of suspended sediment concentration and discharge multiplied by...
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On October 5-6, 2022, a combination of Acoustic Doppler Current Profiler (ADCP) and Global Navigation Satellite System (GNSS) surveying were used to collect bathymetric data of the Lummi Sea Pond near Bellingham, WA. Distributed XYZ points were interpolated to create a continuous bathymetric map of the sea pond. The final product is two-meter raster in NAD88 (2011) UTM 10N coordinates, with elevations referenced to NAVD88 (GEOID18a). Details of the process used to construct the surface are provided in the raster file metadata. Supporting datasets included in the zip file include raw ADCP data, ADCP bathymetry data in CSV format, and GNSS data in CSV format.
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Boat-mounted acoustic doppler current profilers (ADCPs) were used to collect velocity data on the Columbia River in a small area near Northport, WA. Velocity surveys were collected during two surveys at high-flow, high-stage conditions in May 2018. Bathymetric data were also collected during one of the surveys using a single-beam echo-sounder. The datasets here provide 1) raw ADCP and single-beam survey data, 2) processed summaries of the data, primarily in geospatial data formats, and 3) summary visualizations of transect-averaged velocity and depth characteristics of the surveyed reach.


    map background search result map search result map Suspended sediment concentration and loads in the Nooksack River Basin, northwest Washington Velocity and Bathymetry Surveys of the Columbia River near Northport, Washington, May 2018 Supporting Data for Sediment Studies in the White River Watershed Lithologic classifications of river gravels in the Sauk River watershed Geomorphic Monitoring Associated with the 2020 Pilchuck Dam Removal Bathymetric Map of the Lummi Sea Pond, October 2022 Suspended-Sediment Data for the Chehalis, Satsop and Wynoochee Rivers in Washington State, Water Years 2019-2022 Velocity and Bathymetry Surveys of the Columbia River near Northport, Washington, May 2018 Geomorphic Monitoring Associated with the 2020 Pilchuck Dam Removal Bathymetric Map of the Lummi Sea Pond, October 2022 Suspended-Sediment Data for the Chehalis, Satsop and Wynoochee Rivers in Washington State, Water Years 2019-2022 Lithologic classifications of river gravels in the Sauk River watershed Suspended sediment concentration and loads in the Nooksack River Basin, northwest Washington Supporting Data for Sediment Studies in the White River Watershed