Equipment: Trimble R7 GPS (AS)
Dataset Name: Beach topography of the Columbia River littoral cell, Washington and Oregon, 2019
Description: This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2019 (USGS Field Activity Number 2019-632-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area (either the base of a bluff, engineering structure, or just landward of the primary dune) over the beach foreshore, to wading depth on the same series of transects as nearshore bathymetric surveys that were conducted during the same time period. Additional topographic data were collected between survey lines in some areas with an all-terrain vehicle (ATV) equipped with a GNSS receiver to constrain the elevations and alongshore extent of major morphological features.
Contact: Andrew Stevens (astevens@usgs.gov)
Format: comma-delimited text
Data Location: https://www.sciencebase.gov/catalog/file/get/5dc0bc00e4b06957974eecae?name=crlc19_topo.csv
https://www.sciencebase.gov/catalog/item/5dc0bc00e4b06957974eecae
https://www.sciencebase.gov/catalog/item/5dc0b866e4b06957974eec8e
https://doi.org/10.5066/P9W15JX8
Metadata URL: https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/ScienceBase/DR_P9W15JX8/crlc19_topo_metadata.xml
Supplementary Info: