Digital elevation models (DEMs) of the lower Elwha River, Washington, water year 2013 to 2016

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 data product was created because the aerial lidar data had gaps near the river, which the SfM data were able to close. The georeferenced DEMs were used to assess the river's responses to the removal of the Elwha and the Glines Canyon dams upstream from the study area.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5a035e8be4b0036f58f947c7
metadata_type geospatial
modified 20201019
old-spatial -123.614549, 47.959409, -123.541697, 48.145105
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 0ae310d2059b68e917b5c4d209966c64eacbdcbf
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-123.614549, 47.959409], [-123.614549, 48.145105], [ -123.541697, 48.145105], [ -123.541697, 47.959409], [-123.614549, 47.959409]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • digital-elevation-models
  • elwha-dam-historical
  • elwha-river
  • field-inventory-and-monitoring
  • geo
  • geoss
  • glines-canyon-dam-historical
  • image-collections
  • image-mosaics
  • inlandwaters
  • lidar
  • national
  • national-park-service
  • north-america
  • nps
  • pacific-coastal-and-marine-science-center
  • pcmsc
  • river-bank
  • river-channel
  • river-reaches
  • river-systems
  • sediment-deposition
  • state-of-washington
  • substrate
  • time-series-datasets
  • topographic-maps
  • u-s-bureau-of-reclamation
  • u-s-geological-survey
  • united-states
  • usbr
  • usgs
  • usgs-5a035e8be4b0036f58f947c7
isopen False
license_id notspecified
license_title License not specified
maintainer Andrew C Ritchie
maintainer_email aritchie@usgs.gov
metadata_created 2025-11-20T03:36:32.854242
metadata_modified 2025-11-20T03:36:32.854246
notes 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 data product was created because the aerial lidar data had gaps near the river, which the SfM data were able to close. The georeferenced DEMs were used to assess the river's responses to the removal of the Elwha and the Glines Canyon dams upstream from the study area.
num_resources 2
num_tags 37
title Digital elevation models (DEMs) of the lower Elwha River, Washington, water year 2013 to 2016