Digital substrate imagery of the intertidal shoreline collected between 2011-2023 on the Elwha River Delta, Washington State, USA

This archive includes annual and bi-annual image sets collected on the
intertidal beach of the Elwha River delta in Washington State, USA during
18 distinct surveys between 2011 and 2023.  This period spanned
the removal of two large dams on the Elwha River, that led to morphologic
changes on the river's delta and adjacent shorelines (Warrick and
others, 2019).  The images in this archive were collected
coincident with topography and bathymetry surveys of the Elwha River delta
(Stevens and others, 2025), and provide a photographic record of substrate
changes associated with the topobathymetric evolution of a mixed sand and
gravel delta. These digital images were collected along transects to
support automated ‘digital grain size analysis’ (following, for example,
Warrick and others, 2009), or substrate classification. The collection of
this dataset was supported with funding from the US Geological Survey and
Washington Sea Grant. These data were collected in part on the lands of
the Lower Elwha Klallam Tribe, and the collection of these images could
not have been implemented without the support and authorization (through
an access and research permit) of the Tribe. Additional field, logistical
and project support has been provided by Jon Warrick (USGS), Dan Buscombe
(Washington Department of Ecology, and formerly a USGS contractor), Matt
Beirne (Lower Elwha Klallam Tribe), Cal Schurman (UW), Sam Alampay (UW),
Christie Hegermiller (UW), Jackson Currey (USGS), Jon Felis (USGS),
Brittany Johnson, Chris Clark, Vivian Leung, Kevin Simans, Tara McBride,
Eliza Dawson, Amy Waeschle, Jacob Melly, Karsten Turrey, Bethany Nagid,
Silsa Schiera, Jacob Carelson, Nancy Bluestein-Johnson (WWU), Emily
Portillo, Wei Ying Wong, Zachary Levitan, George Kaminsky (Washington
Department of Ecology), and Gabby Alampay (Landau Associates, formerly at
Washington Department of Ecology).