Acoustic-backscatter data from Floras Lake, Oregon, June 2018

Description

This portion of the USGS data release presents acoustic-backscatter data collected during surveys performed in Floras Lake, Oregon in June 2018 (USGS Field Activity Number 2018-636-FA). Lake bed backscatter data were collected using a personal watercraft (PWC) equipped with a sidescan sonar system and global navigation satellite system (GNSS) receivers. The sonar system consisted of a Tritech Starfish 990F with a 1-MHz transducer and a 0.3-degree horizontal beam width. Output from the GNSS receivers and sonar system were combined in real time on the PWC by a computer running HYPACK hydrographic survey software. Navigation information was displayed on a video monitor, allowing PWC operators to navigate along survey lines at speeds of 2 to 3 m/s. Survey-grade positions of the PWCs were achieved with a single-base station and differential post-processing. Positioning data from the GNSS receivers were post-processed using Waypoint Grafnav to apply differential corrections from a GNSS base station with known horizontal and vertical coordinates relative to the North American Datum of 1983.

Resources

Name Format Description Link
55 The metadata original format https://data.usgs.gov/datacatalog/metadata/USGS.5e8bcdb082cee42d13444321.xml
55 Landing page for access to the data https://doi.org/10.5066/P9FQQ5JN

Tags

  • lake-bed
  • global-positioning-system-gps-observations
  • pacific-coastal-and-marine-science-center
  • lakebed-characteristics
  • u-s-geological-survey
  • cape-blanco
  • gps-measurement
  • geoscientificinformation
  • pcmsc
  • gps-global-positioning-system
  • coastal-and-marine-hazards-and-resources-program
  • usgs
  • echo-sounders
  • usgs-5e8bcdb082cee42d13444321
  • floras-lake
  • curry-county
  • state-of-oregon
  • cmhrp
  • substrate
  • lakebed-acoustic-reflectivity

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