Bathymetric and Acoustic-Backscatter Mapping of Lake Sammamish, Washington, During USGS Field Activity 2021-656-FA
Data Report
1207
Coastal and Marine Hazards and Resources Program
Links
- Document: Report (9.1 MB pdf) , HTML , XML
- Related Work: Scientific Investigations Map 3537 - Colored shaded-relief bathymetry and acoustic backscatter of Lake Sammamish, Washington
- Data Release: USGS data release - Bathymetry and acoustic-backscatter data for Lake Sammamish, Washington collected during USGS field activity 2021–656-FA
- Download citation as: RIS | Dublin Core
Abstract
In 2021, scientists from the U.S. Geological Survey (USGS) acquired bathymetric and acoustic-backscatter data within Lake Sammamish, Washington. Mapping was completed to find evidence of past earthquakes such as underwater landslides and is part of a larger USGS project to understand the overall geologic hazards history of the Cascadia Margin region. The survey was conducted using the USGS research vessel Parke Snavely outfitted with an interferometric sidescan-sonar system for swath mapping. Three estimates of bathymetric uncertainty were calculated from the post-processed bathymetric data. This report provides a summary of the mapping mission.
Suggested Citation
Dartnell, P., Brothers, D.S., Sherrod, B., Hatcher, G.A., Powers, D.C., Hill, J.C., Currie, J.E., and Dal Ferro, P., 2025, Bathymetric and acoustic-backscatter mapping of Lake Sammamish, Washington, during USGS field activity 2021–656-FA: U.S. Geological Survey Data Report 1207, 9 p., https://doi.org/10.3133/dr1207.
ISSN: 2771-9448 (online)
Study Area
Table of Contents
- Abstract
- Introduction
- Mapping Operations
- Data Collection Accuracies
- Post-Processing
- Assessments of Bathymetric Uncertainties
- Results
- References Cited
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Bathymetric and acoustic-backscatter mapping of Lake Sammamish, Washington, during USGS field activity 2021-656-FA |
| Series title | Data Report |
| Series number | 1207 |
| DOI | 10.3133/dr1207 |
| Publication Date | September 26, 2025 |
| Year Published | 2025 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Pacific Coastal and Marine Science Center |
| Description | Report: iii, 9 p.; Data Release |
| Country | United States |
| State | Washington |
| Other Geospatial | Lake Sammamish |
| Online Only (Y/N) | Y |