| Identifier | 2019-632-FA | ||||||||
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| Purpose | Collect nearshore bathymetry and beach topography in the Columbia River littoral cell. | ||||||||
| Location | Columbia River Littoral Cell | ||||||||
| Summary | Bathymetry and topography collected successfully over multiple days. | ||||||||
| Info derived | Beach Topography, Nearshore Bathymetry | ||||||||
| Comments | Entries for this field activity are based on entries from Field Activity 2018-652-FA | ||||||||
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| Vehicles | MarFac; Expedition G62-3094P |
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| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Andrew Stevens | ||||||
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| Affiliate principal | Peter Ruggiero (OSU) George Kaminsky (WA DOE) |
| Data category: | Location-Elevation, Sonar |
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| Data type: | Benchmarks, Navigation, Profiles, Single Beam |
| Equipment | Usage description | Data types | Datasets |
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| Radio (base) | Benchmarks, LIDAR, Navigation, Profiles, Transects | (no data reported) | |
| Trimble R7 GPS (AS) | Benchmarks, Navigation, Profiles, Transects | 1 | |
| GPS | Navigation | (no data reported) | |
| Waverunners | Navigation, Single Beam | 1 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Beach topography of the Columbia River littoral cell, Washington and Oregon, 2019 | Trimble R7 GPS (AS) | 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. | Andrew Stevens |
| Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2019 | Waverunners | This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2019 (USGS Field Activity Number 2019-632-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. | Andrew Stevens |
