Sediment grain size in the Elwha River estuary, Washington, from 2013 and 2014.

This portion of the data release presents sediment grain-size data from samples collected in the Elwha River estuary, Washington, in July 2013 and June 2014 (USGS Field Activities L-15-13-PS and 2014-628-FA). Surface sediment was collected from one location in 2013 and five locations in 2014 using a using a push core. The locations of grab samples were determined with a hand-held global positioning system (GPS). The cores were split into one- to three-centimeter sections. The grain-size distributions of samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. Size fractions are defined as gravel (greater than 2 mm), sand (63 micron to 2 mm), silt (4 micron to 63 micron), clay (less than 4 micron), and mud (less than 63 micron). The grain-size data are provided in a comma-delimited spreadsheet (.csv).

Data and Resources

Field Value
accessLevel public
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identifier USGS:58f51816e4b0f6ac3c40393b
metadata_type geospatial
modified 20211013
old-spatial -123.56768, 48.13583, -123.56135, 48.14790
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash bd0287cb0f014f0d1ab23b02074bd596bd8072fd
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spatial {"type": "Polygon", "coordinates": [[[-123.56768, 48.13583], [-123.56768, 48.14790], [ -123.56135, 48.14790], [ -123.56135, 48.13583], [-123.56768, 48.13583]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • clallam-county
  • elwha-river
  • geo
  • geoss
  • grain-size-analysis
  • national
  • north-america
  • oceans
  • olympic-peninsula
  • sediment
  • sediment-transport
  • sedimentation
  • state-of-washington
  • strait-of-juan-de-fuca
  • substrate
  • united-states
  • usgs-58f51816e4b0f6ac3c40393b
isopen False
license_id notspecified
license_title License not specified
maintainer PCMSC Science Data Coordinator
maintainer_email pcmsc_data@usgs.gov
metadata_created 2025-11-20T23:18:03.776097
metadata_modified 2025-11-20T23:18:03.776100
notes This portion of the data release presents sediment grain-size data from samples collected in the Elwha River estuary, Washington, in July 2013 and June 2014 (USGS Field Activities L-15-13-PS and 2014-628-FA). Surface sediment was collected from one location in 2013 and five locations in 2014 using a using a push core. The locations of grab samples were determined with a hand-held global positioning system (GPS). The cores were split into one- to three-centimeter sections. The grain-size distributions of samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. Size fractions are defined as gravel (greater than 2 mm), sand (63 micron to 2 mm), silt (4 micron to 63 micron), clay (less than 4 micron), and mud (less than 63 micron). The grain-size data are provided in a comma-delimited spreadsheet (.csv).
num_resources 2
num_tags 20
title Sediment grain size in the Elwha River estuary, Washington, from 2013 and 2014.