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

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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