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Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington

Dates

Publication Date
Start Date
2010-09-05
End Date
2016-07-20

Citation

Stevens, A.W., Gelfenbaum, G., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2017, Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington: U.S. Geological Survey data release, https://doi.org/10.5066/F72N51GC.

Summary

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 and texture following [...]

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ew_survey_methods.png thumbnail 2.81 MB
elwha_overview_metadata.xml
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Purpose

Data were obtained to assess the coastal geomorphic response following the removal of two dams on the Elwha River. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify topographic and shallow-water bathymetric features.
Data collection methods A) personal watercraft; B) kayak; C) GNSS receiver mounted on backpack; D) GNSS base station; E-F) ponar (grab) sampler deployed from boat.
Data collection methods A) personal watercraft; B) kayak; C) GNSS receiver mounted on backpack; D) GNSS base station; E-F) ponar (grab) sampler deployed from boat.

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ScienceBase WMS

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  • Pacific Coastal and Marine Science Center
  • USGS Data Release Products

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F72N51GC

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