AKA: none
Other ID: none
Status: Completed
Organization(s): USGS, Pacific Coastal and Marine Science Center
Funding Program(s): Coastal Habitats in Puget Sound (ZP00AZZ)
Principal Investigator(s): Guy Gelfenbaum, Jonathan Warrick
Affiliate Investigator(s):
Information Specialist(s): Andrew Stevens
Data Type(s): Location-Elevation: Navigation, Location-Elevation: Transects, Sampling: Geology, Sonar: Single Beam
Scientific Purpose/Goals: Collect nearshore bathymetry, beach topography, and grain size information on the Elwha River delta
Vehicle(s): MarFac; Chevy Suburban - gray; 7 pass; G62-2874L
Start Port/Location: Port Angeles, WA
End Port/Location: Port Angeles, WA
Start Date: 2017-07-20
End Date: 2017-07-24
Equipment Used: Trimble R7 GPS (AS), Trimble R7 GPS receiver, Trimble R7 GPS receiver 9, Waverunners, Ponar grab sampler
Information to be Derived: Nearshore Bathymetry, Beach Topography, Surface Grainsize
Summary of Activity and Data Gathered: base, bathy, field notes, grainsize, grid, kayak, matlab, orthophotos, photos, planning svp and topo files submitted to FAD 2/2/2018 Nearshore bathymetry and beach topography data were collected between Freshwater Bay and Ediz Hook. A total of 120 grain-size samples were collected.
Staff: Timothy Elfers, Guy Gelfenbaum, Andrew Ritchie, Andrew Stevens, Jonathan Warrick
Affiliate Staff:
Notes: Entries for this field activity are based on entries from Field Activity 2014-649-FA
Entries for this field activity are based on entries from Field Activity 2015-605-FA
Entries for this field activity are based on entries from Field Activity 2015-648-FA
Entries for this field activity are based on entries from Field Activity 2016-608-FA
Entries for this field activity are based on entries from Field Activity 2016-653-FA
Location:
Puget Sound
| Boundaries | |||
|---|---|---|---|
| North: 48.17624572 | South: 48.10493829 | West: -123.633 | East: -123.38360665 |
Platform(s):
 Waverunner 1 (SC) | Waverunner 2 (SC) |
Stevens, A.W., Gelfenbaum, G.R., Warrick, J.A., Miller, I.M., and Weiner, H.M., 2019, Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, July 2017: U.S. Geological Survey data release.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| Trimble R7 GPS (AS) | --- | Benchmarks Navigation Profiles Transects | |
| Trimble R7 GPS receiver | --- | Benchmarks LIDAR Navigation Profiles Transects | Topography data from the Elwha River delta, Washington, July 2017 (This part of the data release presents topography data from the Elwha River delta collected in July 2017. Topography data were collected on foot with global navigation satellite system (GNSS) receivers mounted on backpacks.) |
| Trimble R7 GPS receiver 9 | --- | Benchmarks LIDAR Navigation Profiles Transects | |
| Waverunners | --- | Navigation Single Beam | Nearshore bathymetry data from the Elwha River delta, Washington, July 2017, collected from kayak (This part of the data release presents bathymetry data from the Elwha River delta collected in July 2017 using a kayak. The kayak was equipped with a single-beam echosounder and a survey-grade global navigation satellite system (GNSS) receiver.) Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2017 (This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta in July 2017 (USGS Field Activity Number 2017-638-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) and a kayak equipped with single-beam echosounders and survey-grade global navigation satellite systems (GNSS) receivers. Topographic data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Two separate DEMs were constructed. A DEM was produced that covered the entire survey area (approximately 511 ha) with 5-m horizontal resolution. A second DEM with 1-m resolution was produced that covered the river mouth and adjacent areas (approximately 131 ha). Digital data files for each DEM are provided in ESRI ARC ASCII (*.asc) format.) Nearshore bathymetry data from the Elwha River delta, Washington, July 2017, collected from personal watercraft (This part of the data release presents bathymetry data from the Elwha River delta collected in July 2017 using two personal watercraft (PWCs). The PWCs were equipped with single beam echosounders and survey-grade global navigation satellite system (GNSS) receivers.) |
| Ponar grab sampler | --- | Biology Chemistry Geology | Surface-sediment grain-size distributions of the Elwha River delta, Washington, July 2017 (This portion of the data release presents sediment grain-size data from samples collected on the Elwha River delta, Washington, in July 2017 (USGS Field Activity 2017-638-FA). Surface sediment was collected from 80 locations using a small ponar, or 'grab', sampler from the R/V Frontier in water depths between about 1 and 17 m around the delta. An additional 31 samples were collected by hand at low tide. A hand-held global satellite navigation system (GNSS) receiver was used to determine the locations of sediment samples. The grain size distributions of suitable samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. Grab samples that yielded less than 50 g of sediment were omitted from analysis. The grain-size data are provided in a comma-delimited spreadsheet (.csv).) |
